--- /dev/null
+// Locale support -*- C++ -*-
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2006, 2007, 2008, 2009, 2010, 2011
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/locale_facets.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{locale}
+ */
+
+//
+// ISO C++ 14882: 22.1 Locales
+//
+
+#ifndef _LOCALE_FACETS_H
+#define _LOCALE_FACETS_H 1
+
+#pragma GCC system_header
+
+#include <cwctype> // For wctype_t
+#include <cctype>
+#include <bits/ctype_base.h>
+#include <iosfwd>
+#include <bits/ios_base.h> // For ios_base, ios_base::iostate
+#include <streambuf>
+#include <bits/cpp_type_traits.h>
+#include <ext/type_traits.h>
+#include <ext/numeric_traits.h>
+#include <bits/streambuf_iterator.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // NB: Don't instantiate required wchar_t facets if no wchar_t support.
+#ifdef _GLIBCXX_USE_WCHAR_T
+# define _GLIBCXX_NUM_FACETS 28
+#else
+# define _GLIBCXX_NUM_FACETS 14
+#endif
+
+ // Convert string to numeric value of type _Tp and store results.
+ // NB: This is specialized for all required types, there is no
+ // generic definition.
+ template<typename _Tp>
+ void
+ __convert_to_v(const char*, _Tp&, ios_base::iostate&,
+ const __c_locale&) throw();
+
+ // Explicit specializations for required types.
+ template<>
+ void
+ __convert_to_v(const char*, float&, ios_base::iostate&,
+ const __c_locale&) throw();
+
+ template<>
+ void
+ __convert_to_v(const char*, double&, ios_base::iostate&,
+ const __c_locale&) throw();
+
+ template<>
+ void
+ __convert_to_v(const char*, long double&, ios_base::iostate&,
+ const __c_locale&) throw();
+
+ // NB: __pad is a struct, rather than a function, so it can be
+ // partially-specialized.
+ template<typename _CharT, typename _Traits>
+ struct __pad
+ {
+ static void
+ _S_pad(ios_base& __io, _CharT __fill, _CharT* __news,
+ const _CharT* __olds, streamsize __newlen, streamsize __oldlen);
+ };
+
+ // Used by both numeric and monetary facets.
+ // Inserts "group separator" characters into an array of characters.
+ // It's recursive, one iteration per group. It moves the characters
+ // in the buffer this way: "xxxx12345" -> "12,345xxx". Call this
+ // only with __gsize != 0.
+ template<typename _CharT>
+ _CharT*
+ __add_grouping(_CharT* __s, _CharT __sep,
+ const char* __gbeg, size_t __gsize,
+ const _CharT* __first, const _CharT* __last);
+
+ // This template permits specializing facet output code for
+ // ostreambuf_iterator. For ostreambuf_iterator, sputn is
+ // significantly more efficient than incrementing iterators.
+ template<typename _CharT>
+ inline
+ ostreambuf_iterator<_CharT>
+ __write(ostreambuf_iterator<_CharT> __s, const _CharT* __ws, int __len)
+ {
+ __s._M_put(__ws, __len);
+ return __s;
+ }
+
+ // This is the unspecialized form of the template.
+ template<typename _CharT, typename _OutIter>
+ inline
+ _OutIter
+ __write(_OutIter __s, const _CharT* __ws, int __len)
+ {
+ for (int __j = 0; __j < __len; __j++, ++__s)
+ *__s = __ws[__j];
+ return __s;
+ }
+
+
+ // 22.2.1.1 Template class ctype
+ // Include host and configuration specific ctype enums for ctype_base.
+
+ /**
+ * @brief Common base for ctype facet
+ *
+ * This template class provides implementations of the public functions
+ * that forward to the protected virtual functions.
+ *
+ * This template also provides abstract stubs for the protected virtual
+ * functions.
+ */
+ template<typename _CharT>
+ class __ctype_abstract_base : public locale::facet, public ctype_base
+ {
+ public:
+ // Types:
+ /// Typedef for the template parameter
+ typedef _CharT char_type;
+
+ /**
+ * @brief Test char_type classification.
+ *
+ * This function finds a mask M for @a __c and compares it to
+ * mask @a __m. It does so by returning the value of
+ * ctype<char_type>::do_is().
+ *
+ * @param __c The char_type to compare the mask of.
+ * @param __m The mask to compare against.
+ * @return (M & __m) != 0.
+ */
+ bool
+ is(mask __m, char_type __c) const
+ { return this->do_is(__m, __c); }
+
+ /**
+ * @brief Return a mask array.
+ *
+ * This function finds the mask for each char_type in the range [lo,hi)
+ * and successively writes it to vec. vec must have as many elements
+ * as the char array. It does so by returning the value of
+ * ctype<char_type>::do_is().
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __vec Pointer to an array of mask storage.
+ * @return @a __hi.
+ */
+ const char_type*
+ is(const char_type *__lo, const char_type *__hi, mask *__vec) const
+ { return this->do_is(__lo, __hi, __vec); }
+
+ /**
+ * @brief Find char_type matching a mask
+ *
+ * This function searches for and returns the first char_type c in
+ * [lo,hi) for which is(m,c) is true. It does so by returning
+ * ctype<char_type>::do_scan_is().
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to matching char_type if found, else @a __hi.
+ */
+ const char_type*
+ scan_is(mask __m, const char_type* __lo, const char_type* __hi) const
+ { return this->do_scan_is(__m, __lo, __hi); }
+
+ /**
+ * @brief Find char_type not matching a mask
+ *
+ * This function searches for and returns the first char_type c in
+ * [lo,hi) for which is(m,c) is false. It does so by returning
+ * ctype<char_type>::do_scan_not().
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to first char in range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to non-matching char if found, else @a __hi.
+ */
+ const char_type*
+ scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
+ { return this->do_scan_not(__m, __lo, __hi); }
+
+ /**
+ * @brief Convert to uppercase.
+ *
+ * This function converts the argument to uppercase if possible.
+ * If not possible (for example, '2'), returns the argument. It does
+ * so by returning ctype<char_type>::do_toupper().
+ *
+ * @param __c The char_type to convert.
+ * @return The uppercase char_type if convertible, else @a __c.
+ */
+ char_type
+ toupper(char_type __c) const
+ { return this->do_toupper(__c); }
+
+ /**
+ * @brief Convert array to uppercase.
+ *
+ * This function converts each char_type in the range [lo,hi) to
+ * uppercase if possible. Other elements remain untouched. It does so
+ * by returning ctype<char_type>:: do_toupper(lo, hi).
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ const char_type*
+ toupper(char_type *__lo, const char_type* __hi) const
+ { return this->do_toupper(__lo, __hi); }
+
+ /**
+ * @brief Convert to lowercase.
+ *
+ * This function converts the argument to lowercase if possible. If
+ * not possible (for example, '2'), returns the argument. It does so
+ * by returning ctype<char_type>::do_tolower(c).
+ *
+ * @param __c The char_type to convert.
+ * @return The lowercase char_type if convertible, else @a __c.
+ */
+ char_type
+ tolower(char_type __c) const
+ { return this->do_tolower(__c); }
+
+ /**
+ * @brief Convert array to lowercase.
+ *
+ * This function converts each char_type in the range [__lo,__hi) to
+ * lowercase if possible. Other elements remain untouched. It does so
+ * by returning ctype<char_type>:: do_tolower(__lo, __hi).
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ const char_type*
+ tolower(char_type* __lo, const char_type* __hi) const
+ { return this->do_tolower(__lo, __hi); }
+
+ /**
+ * @brief Widen char to char_type
+ *
+ * This function converts the char argument to char_type using the
+ * simplest reasonable transformation. It does so by returning
+ * ctype<char_type>::do_widen(c).
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @return The converted char_type.
+ */
+ char_type
+ widen(char __c) const
+ { return this->do_widen(__c); }
+
+ /**
+ * @brief Widen array to char_type
+ *
+ * This function converts each char in the input to char_type using the
+ * simplest reasonable transformation. It does so by returning
+ * ctype<char_type>::do_widen(c).
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ const char*
+ widen(const char* __lo, const char* __hi, char_type* __to) const
+ { return this->do_widen(__lo, __hi, __to); }
+
+ /**
+ * @brief Narrow char_type to char
+ *
+ * This function converts the char_type to char using the simplest
+ * reasonable transformation. If the conversion fails, dfault is
+ * returned instead. It does so by returning
+ * ctype<char_type>::do_narrow(__c).
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char_type to convert.
+ * @param __dfault Char to return if conversion fails.
+ * @return The converted char.
+ */
+ char
+ narrow(char_type __c, char __dfault) const
+ { return this->do_narrow(__c, __dfault); }
+
+ /**
+ * @brief Narrow array to char array
+ *
+ * This function converts each char_type in the input to char using the
+ * simplest reasonable transformation and writes the results to the
+ * destination array. For any char_type in the input that cannot be
+ * converted, @a dfault is used instead. It does so by returning
+ * ctype<char_type>::do_narrow(__lo, __hi, __dfault, __to).
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __dfault Char to use if conversion fails.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ const char_type*
+ narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const
+ { return this->do_narrow(__lo, __hi, __dfault, __to); }
+
+ protected:
+ explicit
+ __ctype_abstract_base(size_t __refs = 0): facet(__refs) { }
+
+ virtual
+ ~__ctype_abstract_base() { }
+
+ /**
+ * @brief Test char_type classification.
+ *
+ * This function finds a mask M for @a c and compares it to mask @a m.
+ *
+ * do_is() is a hook for a derived facet to change the behavior of
+ * classifying. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __c The char_type to find the mask of.
+ * @param __m The mask to compare against.
+ * @return (M & __m) != 0.
+ */
+ virtual bool
+ do_is(mask __m, char_type __c) const = 0;
+
+ /**
+ * @brief Return a mask array.
+ *
+ * This function finds the mask for each char_type in the range [lo,hi)
+ * and successively writes it to vec. vec must have as many elements
+ * as the input.
+ *
+ * do_is() is a hook for a derived facet to change the behavior of
+ * classifying. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __vec Pointer to an array of mask storage.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_is(const char_type* __lo, const char_type* __hi,
+ mask* __vec) const = 0;
+
+ /**
+ * @brief Find char_type matching mask
+ *
+ * This function searches for and returns the first char_type c in
+ * [__lo,__hi) for which is(__m,c) is true.
+ *
+ * do_scan_is() is a hook for a derived facet to change the behavior of
+ * match searching. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a matching char_type if found, else @a __hi.
+ */
+ virtual const char_type*
+ do_scan_is(mask __m, const char_type* __lo,
+ const char_type* __hi) const = 0;
+
+ /**
+ * @brief Find char_type not matching mask
+ *
+ * This function searches for and returns a pointer to the first
+ * char_type c of [lo,hi) for which is(m,c) is false.
+ *
+ * do_scan_is() is a hook for a derived facet to change the behavior of
+ * match searching. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a non-matching char_type if found, else @a __hi.
+ */
+ virtual const char_type*
+ do_scan_not(mask __m, const char_type* __lo,
+ const char_type* __hi) const = 0;
+
+ /**
+ * @brief Convert to uppercase.
+ *
+ * This virtual function converts the char_type argument to uppercase
+ * if possible. If not possible (for example, '2'), returns the
+ * argument.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __c The char_type to convert.
+ * @return The uppercase char_type if convertible, else @a __c.
+ */
+ virtual char_type
+ do_toupper(char_type __c) const = 0;
+
+ /**
+ * @brief Convert array to uppercase.
+ *
+ * This virtual function converts each char_type in the range [__lo,__hi)
+ * to uppercase if possible. Other elements remain untouched.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_toupper(char_type* __lo, const char_type* __hi) const = 0;
+
+ /**
+ * @brief Convert to lowercase.
+ *
+ * This virtual function converts the argument to lowercase if
+ * possible. If not possible (for example, '2'), returns the argument.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __c The char_type to convert.
+ * @return The lowercase char_type if convertible, else @a __c.
+ */
+ virtual char_type
+ do_tolower(char_type __c) const = 0;
+
+ /**
+ * @brief Convert array to lowercase.
+ *
+ * This virtual function converts each char_type in the range [__lo,__hi)
+ * to lowercase if possible. Other elements remain untouched.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_tolower(char_type* __lo, const char_type* __hi) const = 0;
+
+ /**
+ * @brief Widen char
+ *
+ * This virtual function converts the char to char_type using the
+ * simplest reasonable transformation.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @return The converted char_type
+ */
+ virtual char_type
+ do_widen(char __c) const = 0;
+
+ /**
+ * @brief Widen char array
+ *
+ * This function converts each char in the input to char_type using the
+ * simplest reasonable transformation.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start range.
+ * @param __hi Pointer to end of range.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char*
+ do_widen(const char* __lo, const char* __hi, char_type* __to) const = 0;
+
+ /**
+ * @brief Narrow char_type to char
+ *
+ * This virtual function converts the argument to char using the
+ * simplest reasonable transformation. If the conversion fails, dfault
+ * is returned instead.
+ *
+ * do_narrow() is a hook for a derived facet to change the behavior of
+ * narrowing. do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char_type to convert.
+ * @param __dfault Char to return if conversion fails.
+ * @return The converted char.
+ */
+ virtual char
+ do_narrow(char_type __c, char __dfault) const = 0;
+
+ /**
+ * @brief Narrow char_type array to char
+ *
+ * This virtual function converts each char_type in the range
+ * [__lo,__hi) to char using the simplest reasonable
+ * transformation and writes the results to the destination
+ * array. For any element in the input that cannot be
+ * converted, @a __dfault is used instead.
+ *
+ * do_narrow() is a hook for a derived facet to change the behavior of
+ * narrowing. do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __dfault Char to use if conversion fails.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const = 0;
+ };
+
+ /**
+ * @brief Primary class template ctype facet.
+ * @ingroup locales
+ *
+ * This template class defines classification and conversion functions for
+ * character sets. It wraps cctype functionality. Ctype gets used by
+ * streams for many I/O operations.
+ *
+ * This template provides the protected virtual functions the developer
+ * will have to replace in a derived class or specialization to make a
+ * working facet. The public functions that access them are defined in
+ * __ctype_abstract_base, to allow for implementation flexibility. See
+ * ctype<wchar_t> for an example. The functions are documented in
+ * __ctype_abstract_base.
+ *
+ * Note: implementations are provided for all the protected virtual
+ * functions, but will likely not be useful.
+ */
+ template<typename _CharT>
+ class ctype : public __ctype_abstract_base<_CharT>
+ {
+ public:
+ // Types:
+ typedef _CharT char_type;
+ typedef typename __ctype_abstract_base<_CharT>::mask mask;
+
+ /// The facet id for ctype<char_type>
+ static locale::id id;
+
+ explicit
+ ctype(size_t __refs = 0) : __ctype_abstract_base<_CharT>(__refs) { }
+
+ protected:
+ virtual
+ ~ctype();
+
+ virtual bool
+ do_is(mask __m, char_type __c) const;
+
+ virtual const char_type*
+ do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const;
+
+ virtual const char_type*
+ do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const;
+
+ virtual const char_type*
+ do_scan_not(mask __m, const char_type* __lo,
+ const char_type* __hi) const;
+
+ virtual char_type
+ do_toupper(char_type __c) const;
+
+ virtual const char_type*
+ do_toupper(char_type* __lo, const char_type* __hi) const;
+
+ virtual char_type
+ do_tolower(char_type __c) const;
+
+ virtual const char_type*
+ do_tolower(char_type* __lo, const char_type* __hi) const;
+
+ virtual char_type
+ do_widen(char __c) const;
+
+ virtual const char*
+ do_widen(const char* __lo, const char* __hi, char_type* __dest) const;
+
+ virtual char
+ do_narrow(char_type, char __dfault) const;
+
+ virtual const char_type*
+ do_narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const;
+ };
+
+ template<typename _CharT>
+ locale::id ctype<_CharT>::id;
+
+ /**
+ * @brief The ctype<char> specialization.
+ * @ingroup locales
+ *
+ * This class defines classification and conversion functions for
+ * the char type. It gets used by char streams for many I/O
+ * operations. The char specialization provides a number of
+ * optimizations as well.
+ */
+ template<>
+ class ctype<char> : public locale::facet, public ctype_base
+ {
+ public:
+ // Types:
+ /// Typedef for the template parameter char.
+ typedef char char_type;
+
+ protected:
+ // Data Members:
+ __c_locale _M_c_locale_ctype;
+ bool _M_del;
+ __to_type _M_toupper;
+ __to_type _M_tolower;
+ const mask* _M_table;
+ mutable char _M_widen_ok;
+ mutable char _M_widen[1 + static_cast<unsigned char>(-1)];
+ mutable char _M_narrow[1 + static_cast<unsigned char>(-1)];
+ mutable char _M_narrow_ok; // 0 uninitialized, 1 init,
+ // 2 memcpy can't be used
+
+ public:
+ /// The facet id for ctype<char>
+ static locale::id id;
+ /// The size of the mask table. It is SCHAR_MAX + 1.
+ static const size_t table_size = 1 + static_cast<unsigned char>(-1);
+
+ /**
+ * @brief Constructor performs initialization.
+ *
+ * This is the constructor provided by the standard.
+ *
+ * @param __table If non-zero, table is used as the per-char mask.
+ * Else classic_table() is used.
+ * @param __del If true, passes ownership of table to this facet.
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ ctype(const mask* __table = 0, bool __del = false, size_t __refs = 0);
+
+ /**
+ * @brief Constructor performs static initialization.
+ *
+ * This constructor is used to construct the initial C locale facet.
+ *
+ * @param __cloc Handle to C locale data.
+ * @param __table If non-zero, table is used as the per-char mask.
+ * @param __del If true, passes ownership of table to this facet.
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ ctype(__c_locale __cloc, const mask* __table = 0, bool __del = false,
+ size_t __refs = 0);
+
+ /**
+ * @brief Test char classification.
+ *
+ * This function compares the mask table[c] to @a __m.
+ *
+ * @param __c The char to compare the mask of.
+ * @param __m The mask to compare against.
+ * @return True if __m & table[__c] is true, false otherwise.
+ */
+ inline bool
+ is(mask __m, char __c) const;
+
+ /**
+ * @brief Return a mask array.
+ *
+ * This function finds the mask for each char in the range [lo, hi) and
+ * successively writes it to vec. vec must have as many elements as
+ * the char array.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __vec Pointer to an array of mask storage.
+ * @return @a __hi.
+ */
+ inline const char*
+ is(const char* __lo, const char* __hi, mask* __vec) const;
+
+ /**
+ * @brief Find char matching a mask
+ *
+ * This function searches for and returns the first char in [lo,hi) for
+ * which is(m,char) is true.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a matching char if found, else @a __hi.
+ */
+ inline const char*
+ scan_is(mask __m, const char* __lo, const char* __hi) const;
+
+ /**
+ * @brief Find char not matching a mask
+ *
+ * This function searches for and returns a pointer to the first char
+ * in [__lo,__hi) for which is(m,char) is false.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a non-matching char if found, else @a __hi.
+ */
+ inline const char*
+ scan_not(mask __m, const char* __lo, const char* __hi) const;
+
+ /**
+ * @brief Convert to uppercase.
+ *
+ * This function converts the char argument to uppercase if possible.
+ * If not possible (for example, '2'), returns the argument.
+ *
+ * toupper() acts as if it returns ctype<char>::do_toupper(c).
+ * do_toupper() must always return the same result for the same input.
+ *
+ * @param __c The char to convert.
+ * @return The uppercase char if convertible, else @a __c.
+ */
+ char_type
+ toupper(char_type __c) const
+ { return this->do_toupper(__c); }
+
+ /**
+ * @brief Convert array to uppercase.
+ *
+ * This function converts each char in the range [__lo,__hi) to uppercase
+ * if possible. Other chars remain untouched.
+ *
+ * toupper() acts as if it returns ctype<char>:: do_toupper(__lo, __hi).
+ * do_toupper() must always return the same result for the same input.
+ *
+ * @param __lo Pointer to first char in range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ const char_type*
+ toupper(char_type *__lo, const char_type* __hi) const
+ { return this->do_toupper(__lo, __hi); }
+
+ /**
+ * @brief Convert to lowercase.
+ *
+ * This function converts the char argument to lowercase if possible.
+ * If not possible (for example, '2'), returns the argument.
+ *
+ * tolower() acts as if it returns ctype<char>::do_tolower(__c).
+ * do_tolower() must always return the same result for the same input.
+ *
+ * @param __c The char to convert.
+ * @return The lowercase char if convertible, else @a __c.
+ */
+ char_type
+ tolower(char_type __c) const
+ { return this->do_tolower(__c); }
+
+ /**
+ * @brief Convert array to lowercase.
+ *
+ * This function converts each char in the range [lo,hi) to lowercase
+ * if possible. Other chars remain untouched.
+ *
+ * tolower() acts as if it returns ctype<char>:: do_tolower(__lo, __hi).
+ * do_tolower() must always return the same result for the same input.
+ *
+ * @param __lo Pointer to first char in range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ const char_type*
+ tolower(char_type* __lo, const char_type* __hi) const
+ { return this->do_tolower(__lo, __hi); }
+
+ /**
+ * @brief Widen char
+ *
+ * This function converts the char to char_type using the simplest
+ * reasonable transformation. For an underived ctype<char> facet, the
+ * argument will be returned unchanged.
+ *
+ * This function works as if it returns ctype<char>::do_widen(c).
+ * do_widen() must always return the same result for the same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @return The converted character.
+ */
+ char_type
+ widen(char __c) const
+ {
+ if (_M_widen_ok)
+ return _M_widen[static_cast<unsigned char>(__c)];
+ this->_M_widen_init();
+ return this->do_widen(__c);
+ }
+
+ /**
+ * @brief Widen char array
+ *
+ * This function converts each char in the input to char using the
+ * simplest reasonable transformation. For an underived ctype<char>
+ * facet, the argument will be copied unchanged.
+ *
+ * This function works as if it returns ctype<char>::do_widen(c).
+ * do_widen() must always return the same result for the same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to first char in range.
+ * @param __hi Pointer to end of range.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ const char*
+ widen(const char* __lo, const char* __hi, char_type* __to) const
+ {
+ if (_M_widen_ok == 1)
+ {
+ __builtin_memcpy(__to, __lo, __hi - __lo);
+ return __hi;
+ }
+ if (!_M_widen_ok)
+ _M_widen_init();
+ return this->do_widen(__lo, __hi, __to);
+ }
+
+ /**
+ * @brief Narrow char
+ *
+ * This function converts the char to char using the simplest
+ * reasonable transformation. If the conversion fails, dfault is
+ * returned instead. For an underived ctype<char> facet, @a c
+ * will be returned unchanged.
+ *
+ * This function works as if it returns ctype<char>::do_narrow(c).
+ * do_narrow() must always return the same result for the same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @param __dfault Char to return if conversion fails.
+ * @return The converted character.
+ */
+ char
+ narrow(char_type __c, char __dfault) const
+ {
+ if (_M_narrow[static_cast<unsigned char>(__c)])
+ return _M_narrow[static_cast<unsigned char>(__c)];
+ const char __t = do_narrow(__c, __dfault);
+ if (__t != __dfault)
+ _M_narrow[static_cast<unsigned char>(__c)] = __t;
+ return __t;
+ }
+
+ /**
+ * @brief Narrow char array
+ *
+ * This function converts each char in the input to char using the
+ * simplest reasonable transformation and writes the results to the
+ * destination array. For any char in the input that cannot be
+ * converted, @a dfault is used instead. For an underived ctype<char>
+ * facet, the argument will be copied unchanged.
+ *
+ * This function works as if it returns ctype<char>::do_narrow(lo, hi,
+ * dfault, to). do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __dfault Char to use if conversion fails.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ const char_type*
+ narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const
+ {
+ if (__builtin_expect(_M_narrow_ok == 1, true))
+ {
+ __builtin_memcpy(__to, __lo, __hi - __lo);
+ return __hi;
+ }
+ if (!_M_narrow_ok)
+ _M_narrow_init();
+ return this->do_narrow(__lo, __hi, __dfault, __to);
+ }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 695. ctype<char>::classic_table() not accessible.
+ /// Returns a pointer to the mask table provided to the constructor, or
+ /// the default from classic_table() if none was provided.
+ const mask*
+ table() const throw()
+ { return _M_table; }
+
+ /// Returns a pointer to the C locale mask table.
+ static const mask*
+ classic_table() throw();
+ protected:
+
+ /**
+ * @brief Destructor.
+ *
+ * This function deletes table() if @a del was true in the
+ * constructor.
+ */
+ virtual
+ ~ctype();
+
+ /**
+ * @brief Convert to uppercase.
+ *
+ * This virtual function converts the char argument to uppercase if
+ * possible. If not possible (for example, '2'), returns the argument.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __c The char to convert.
+ * @return The uppercase char if convertible, else @a __c.
+ */
+ virtual char_type
+ do_toupper(char_type __c) const;
+
+ /**
+ * @brief Convert array to uppercase.
+ *
+ * This virtual function converts each char in the range [lo,hi) to
+ * uppercase if possible. Other chars remain untouched.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_toupper(char_type* __lo, const char_type* __hi) const;
+
+ /**
+ * @brief Convert to lowercase.
+ *
+ * This virtual function converts the char argument to lowercase if
+ * possible. If not possible (for example, '2'), returns the argument.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __c The char to convert.
+ * @return The lowercase char if convertible, else @a __c.
+ */
+ virtual char_type
+ do_tolower(char_type __c) const;
+
+ /**
+ * @brief Convert array to lowercase.
+ *
+ * This virtual function converts each char in the range [lo,hi) to
+ * lowercase if possible. Other chars remain untouched.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to first char in range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_tolower(char_type* __lo, const char_type* __hi) const;
+
+ /**
+ * @brief Widen char
+ *
+ * This virtual function converts the char to char using the simplest
+ * reasonable transformation. For an underived ctype<char> facet, the
+ * argument will be returned unchanged.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @return The converted character.
+ */
+ virtual char_type
+ do_widen(char __c) const
+ { return __c; }
+
+ /**
+ * @brief Widen char array
+ *
+ * This function converts each char in the range [lo,hi) to char using
+ * the simplest reasonable transformation. For an underived
+ * ctype<char> facet, the argument will be copied unchanged.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char*
+ do_widen(const char* __lo, const char* __hi, char_type* __to) const
+ {
+ __builtin_memcpy(__to, __lo, __hi - __lo);
+ return __hi;
+ }
+
+ /**
+ * @brief Narrow char
+ *
+ * This virtual function converts the char to char using the simplest
+ * reasonable transformation. If the conversion fails, dfault is
+ * returned instead. For an underived ctype<char> facet, @a c will be
+ * returned unchanged.
+ *
+ * do_narrow() is a hook for a derived facet to change the behavior of
+ * narrowing. do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @param __dfault Char to return if conversion fails.
+ * @return The converted char.
+ */
+ virtual char
+ do_narrow(char_type __c, char __dfault) const
+ { return __c; }
+
+ /**
+ * @brief Narrow char array to char array
+ *
+ * This virtual function converts each char in the range [lo,hi) to
+ * char using the simplest reasonable transformation and writes the
+ * results to the destination array. For any char in the input that
+ * cannot be converted, @a dfault is used instead. For an underived
+ * ctype<char> facet, the argument will be copied unchanged.
+ *
+ * do_narrow() is a hook for a derived facet to change the behavior of
+ * narrowing. do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __dfault Char to use if conversion fails.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const
+ {
+ __builtin_memcpy(__to, __lo, __hi - __lo);
+ return __hi;
+ }
+
+ private:
+ void _M_narrow_init() const;
+ void _M_widen_init() const;
+ };
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ /**
+ * @brief The ctype<wchar_t> specialization.
+ * @ingroup locales
+ *
+ * This class defines classification and conversion functions for the
+ * wchar_t type. It gets used by wchar_t streams for many I/O operations.
+ * The wchar_t specialization provides a number of optimizations as well.
+ *
+ * ctype<wchar_t> inherits its public methods from
+ * __ctype_abstract_base<wchar_t>.
+ */
+ template<>
+ class ctype<wchar_t> : public __ctype_abstract_base<wchar_t>
+ {
+ public:
+ // Types:
+ /// Typedef for the template parameter wchar_t.
+ typedef wchar_t char_type;
+ typedef wctype_t __wmask_type;
+
+ protected:
+ __c_locale _M_c_locale_ctype;
+
+ // Pre-computed narrowed and widened chars.
+ bool _M_narrow_ok;
+ char _M_narrow[128];
+ wint_t _M_widen[1 + static_cast<unsigned char>(-1)];
+
+ // Pre-computed elements for do_is.
+ mask _M_bit[16];
+ __wmask_type _M_wmask[16];
+
+ public:
+ // Data Members:
+ /// The facet id for ctype<wchar_t>
+ static locale::id id;
+
+ /**
+ * @brief Constructor performs initialization.
+ *
+ * This is the constructor provided by the standard.
+ *
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ ctype(size_t __refs = 0);
+
+ /**
+ * @brief Constructor performs static initialization.
+ *
+ * This constructor is used to construct the initial C locale facet.
+ *
+ * @param __cloc Handle to C locale data.
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ ctype(__c_locale __cloc, size_t __refs = 0);
+
+ protected:
+ __wmask_type
+ _M_convert_to_wmask(const mask __m) const throw();
+
+ /// Destructor
+ virtual
+ ~ctype();
+
+ /**
+ * @brief Test wchar_t classification.
+ *
+ * This function finds a mask M for @a c and compares it to mask @a m.
+ *
+ * do_is() is a hook for a derived facet to change the behavior of
+ * classifying. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __c The wchar_t to find the mask of.
+ * @param __m The mask to compare against.
+ * @return (M & __m) != 0.
+ */
+ virtual bool
+ do_is(mask __m, char_type __c) const;
+
+ /**
+ * @brief Return a mask array.
+ *
+ * This function finds the mask for each wchar_t in the range [lo,hi)
+ * and successively writes it to vec. vec must have as many elements
+ * as the input.
+ *
+ * do_is() is a hook for a derived facet to change the behavior of
+ * classifying. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __vec Pointer to an array of mask storage.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const;
+
+ /**
+ * @brief Find wchar_t matching mask
+ *
+ * This function searches for and returns the first wchar_t c in
+ * [__lo,__hi) for which is(__m,c) is true.
+ *
+ * do_scan_is() is a hook for a derived facet to change the behavior of
+ * match searching. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a matching wchar_t if found, else @a __hi.
+ */
+ virtual const char_type*
+ do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const;
+
+ /**
+ * @brief Find wchar_t not matching mask
+ *
+ * This function searches for and returns a pointer to the first
+ * wchar_t c of [__lo,__hi) for which is(__m,c) is false.
+ *
+ * do_scan_is() is a hook for a derived facet to change the behavior of
+ * match searching. do_is() must always return the same result for the
+ * same input.
+ *
+ * @param __m The mask to compare against.
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return Pointer to a non-matching wchar_t if found, else @a __hi.
+ */
+ virtual const char_type*
+ do_scan_not(mask __m, const char_type* __lo,
+ const char_type* __hi) const;
+
+ /**
+ * @brief Convert to uppercase.
+ *
+ * This virtual function converts the wchar_t argument to uppercase if
+ * possible. If not possible (for example, '2'), returns the argument.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __c The wchar_t to convert.
+ * @return The uppercase wchar_t if convertible, else @a __c.
+ */
+ virtual char_type
+ do_toupper(char_type __c) const;
+
+ /**
+ * @brief Convert array to uppercase.
+ *
+ * This virtual function converts each wchar_t in the range [lo,hi) to
+ * uppercase if possible. Other elements remain untouched.
+ *
+ * do_toupper() is a hook for a derived facet to change the behavior of
+ * uppercasing. do_toupper() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_toupper(char_type* __lo, const char_type* __hi) const;
+
+ /**
+ * @brief Convert to lowercase.
+ *
+ * This virtual function converts the argument to lowercase if
+ * possible. If not possible (for example, '2'), returns the argument.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __c The wchar_t to convert.
+ * @return The lowercase wchar_t if convertible, else @a __c.
+ */
+ virtual char_type
+ do_tolower(char_type __c) const;
+
+ /**
+ * @brief Convert array to lowercase.
+ *
+ * This virtual function converts each wchar_t in the range [lo,hi) to
+ * lowercase if possible. Other elements remain untouched.
+ *
+ * do_tolower() is a hook for a derived facet to change the behavior of
+ * lowercasing. do_tolower() must always return the same result for
+ * the same input.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_tolower(char_type* __lo, const char_type* __hi) const;
+
+ /**
+ * @brief Widen char to wchar_t
+ *
+ * This virtual function converts the char to wchar_t using the
+ * simplest reasonable transformation. For an underived ctype<wchar_t>
+ * facet, the argument will be cast to wchar_t.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The char to convert.
+ * @return The converted wchar_t.
+ */
+ virtual char_type
+ do_widen(char __c) const;
+
+ /**
+ * @brief Widen char array to wchar_t array
+ *
+ * This function converts each char in the input to wchar_t using the
+ * simplest reasonable transformation. For an underived ctype<wchar_t>
+ * facet, the argument will be copied, casting each element to wchar_t.
+ *
+ * do_widen() is a hook for a derived facet to change the behavior of
+ * widening. do_widen() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start range.
+ * @param __hi Pointer to end of range.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char*
+ do_widen(const char* __lo, const char* __hi, char_type* __to) const;
+
+ /**
+ * @brief Narrow wchar_t to char
+ *
+ * This virtual function converts the argument to char using
+ * the simplest reasonable transformation. If the conversion
+ * fails, dfault is returned instead. For an underived
+ * ctype<wchar_t> facet, @a c will be cast to char and
+ * returned.
+ *
+ * do_narrow() is a hook for a derived facet to change the
+ * behavior of narrowing. do_narrow() must always return the
+ * same result for the same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __c The wchar_t to convert.
+ * @param __dfault Char to return if conversion fails.
+ * @return The converted char.
+ */
+ virtual char
+ do_narrow(char_type __c, char __dfault) const;
+
+ /**
+ * @brief Narrow wchar_t array to char array
+ *
+ * This virtual function converts each wchar_t in the range [lo,hi) to
+ * char using the simplest reasonable transformation and writes the
+ * results to the destination array. For any wchar_t in the input that
+ * cannot be converted, @a dfault is used instead. For an underived
+ * ctype<wchar_t> facet, the argument will be copied, casting each
+ * element to char.
+ *
+ * do_narrow() is a hook for a derived facet to change the behavior of
+ * narrowing. do_narrow() must always return the same result for the
+ * same input.
+ *
+ * Note: this is not what you want for codepage conversions. See
+ * codecvt for that.
+ *
+ * @param __lo Pointer to start of range.
+ * @param __hi Pointer to end of range.
+ * @param __dfault Char to use if conversion fails.
+ * @param __to Pointer to the destination array.
+ * @return @a __hi.
+ */
+ virtual const char_type*
+ do_narrow(const char_type* __lo, const char_type* __hi,
+ char __dfault, char* __to) const;
+
+ // For use at construction time only.
+ void
+ _M_initialize_ctype() throw();
+ };
+#endif //_GLIBCXX_USE_WCHAR_T
+
+ /// class ctype_byname [22.2.1.2].
+ template<typename _CharT>
+ class ctype_byname : public ctype<_CharT>
+ {
+ public:
+ typedef typename ctype<_CharT>::mask mask;
+
+ explicit
+ ctype_byname(const char* __s, size_t __refs = 0);
+
+ protected:
+ virtual
+ ~ctype_byname() { };
+ };
+
+ /// 22.2.1.4 Class ctype_byname specializations.
+ template<>
+ class ctype_byname<char> : public ctype<char>
+ {
+ public:
+ explicit
+ ctype_byname(const char* __s, size_t __refs = 0);
+
+ protected:
+ virtual
+ ~ctype_byname();
+ };
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ template<>
+ class ctype_byname<wchar_t> : public ctype<wchar_t>
+ {
+ public:
+ explicit
+ ctype_byname(const char* __s, size_t __refs = 0);
+
+ protected:
+ virtual
+ ~ctype_byname();
+ };
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Include host and configuration specific ctype inlines.
+#include <bits/ctype_inline.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // 22.2.2 The numeric category.
+ class __num_base
+ {
+ public:
+ // NB: Code depends on the order of _S_atoms_out elements.
+ // Below are the indices into _S_atoms_out.
+ enum
+ {
+ _S_ominus,
+ _S_oplus,
+ _S_ox,
+ _S_oX,
+ _S_odigits,
+ _S_odigits_end = _S_odigits + 16,
+ _S_oudigits = _S_odigits_end,
+ _S_oudigits_end = _S_oudigits + 16,
+ _S_oe = _S_odigits + 14, // For scientific notation, 'e'
+ _S_oE = _S_oudigits + 14, // For scientific notation, 'E'
+ _S_oend = _S_oudigits_end
+ };
+
+ // A list of valid numeric literals for output. This array
+ // contains chars that will be passed through the current locale's
+ // ctype<_CharT>.widen() and then used to render numbers.
+ // For the standard "C" locale, this is
+ // "-+xX0123456789abcdef0123456789ABCDEF".
+ static const char* _S_atoms_out;
+
+ // String literal of acceptable (narrow) input, for num_get.
+ // "-+xX0123456789abcdefABCDEF"
+ static const char* _S_atoms_in;
+
+ enum
+ {
+ _S_iminus,
+ _S_iplus,
+ _S_ix,
+ _S_iX,
+ _S_izero,
+ _S_ie = _S_izero + 14,
+ _S_iE = _S_izero + 20,
+ _S_iend = 26
+ };
+
+ // num_put
+ // Construct and return valid scanf format for floating point types.
+ static void
+ _S_format_float(const ios_base& __io, char* __fptr, char __mod) throw();
+ };
+
+ template<typename _CharT>
+ struct __numpunct_cache : public locale::facet
+ {
+ const char* _M_grouping;
+ size_t _M_grouping_size;
+ bool _M_use_grouping;
+ const _CharT* _M_truename;
+ size_t _M_truename_size;
+ const _CharT* _M_falsename;
+ size_t _M_falsename_size;
+ _CharT _M_decimal_point;
+ _CharT _M_thousands_sep;
+
+ // A list of valid numeric literals for output: in the standard
+ // "C" locale, this is "-+xX0123456789abcdef0123456789ABCDEF".
+ // This array contains the chars after having been passed
+ // through the current locale's ctype<_CharT>.widen().
+ _CharT _M_atoms_out[__num_base::_S_oend];
+
+ // A list of valid numeric literals for input: in the standard
+ // "C" locale, this is "-+xX0123456789abcdefABCDEF"
+ // This array contains the chars after having been passed
+ // through the current locale's ctype<_CharT>.widen().
+ _CharT _M_atoms_in[__num_base::_S_iend];
+
+ bool _M_allocated;
+
+ __numpunct_cache(size_t __refs = 0)
+ : facet(__refs), _M_grouping(0), _M_grouping_size(0),
+ _M_use_grouping(false),
+ _M_truename(0), _M_truename_size(0), _M_falsename(0),
+ _M_falsename_size(0), _M_decimal_point(_CharT()),
+ _M_thousands_sep(_CharT()), _M_allocated(false)
+ { }
+
+ ~__numpunct_cache();
+
+ void
+ _M_cache(const locale& __loc);
+
+ private:
+ __numpunct_cache&
+ operator=(const __numpunct_cache&);
+
+ explicit
+ __numpunct_cache(const __numpunct_cache&);
+ };
+
+ template<typename _CharT>
+ __numpunct_cache<_CharT>::~__numpunct_cache()
+ {
+ if (_M_allocated)
+ {
+ delete [] _M_grouping;
+ delete [] _M_truename;
+ delete [] _M_falsename;
+ }
+ }
+
+ /**
+ * @brief Primary class template numpunct.
+ * @ingroup locales
+ *
+ * This facet stores several pieces of information related to printing and
+ * scanning numbers, such as the decimal point character. It takes a
+ * template parameter specifying the char type. The numpunct facet is
+ * used by streams for many I/O operations involving numbers.
+ *
+ * The numpunct template uses protected virtual functions to provide the
+ * actual results. The public accessors forward the call to the virtual
+ * functions. These virtual functions are hooks for developers to
+ * implement the behavior they require from a numpunct facet.
+ */
+ template<typename _CharT>
+ class numpunct : public locale::facet
+ {
+ public:
+ // Types:
+ //@{
+ /// Public typedefs
+ typedef _CharT char_type;
+ typedef basic_string<_CharT> string_type;
+ //@}
+ typedef __numpunct_cache<_CharT> __cache_type;
+
+ protected:
+ __cache_type* _M_data;
+
+ public:
+ /// Numpunct facet id.
+ static locale::id id;
+
+ /**
+ * @brief Numpunct constructor.
+ *
+ * @param __refs Refcount to pass to the base class.
+ */
+ explicit
+ numpunct(size_t __refs = 0)
+ : facet(__refs), _M_data(0)
+ { _M_initialize_numpunct(); }
+
+ /**
+ * @brief Internal constructor. Not for general use.
+ *
+ * This is a constructor for use by the library itself to set up the
+ * predefined locale facets.
+ *
+ * @param __cache __numpunct_cache object.
+ * @param __refs Refcount to pass to the base class.
+ */
+ explicit
+ numpunct(__cache_type* __cache, size_t __refs = 0)
+ : facet(__refs), _M_data(__cache)
+ { _M_initialize_numpunct(); }
+
+ /**
+ * @brief Internal constructor. Not for general use.
+ *
+ * This is a constructor for use by the library itself to set up new
+ * locales.
+ *
+ * @param __cloc The C locale.
+ * @param __refs Refcount to pass to the base class.
+ */
+ explicit
+ numpunct(__c_locale __cloc, size_t __refs = 0)
+ : facet(__refs), _M_data(0)
+ { _M_initialize_numpunct(__cloc); }
+
+ /**
+ * @brief Return decimal point character.
+ *
+ * This function returns a char_type to use as a decimal point. It
+ * does so by returning returning
+ * numpunct<char_type>::do_decimal_point().
+ *
+ * @return @a char_type representing a decimal point.
+ */
+ char_type
+ decimal_point() const
+ { return this->do_decimal_point(); }
+
+ /**
+ * @brief Return thousands separator character.
+ *
+ * This function returns a char_type to use as a thousands
+ * separator. It does so by returning returning
+ * numpunct<char_type>::do_thousands_sep().
+ *
+ * @return char_type representing a thousands separator.
+ */
+ char_type
+ thousands_sep() const
+ { return this->do_thousands_sep(); }
+
+ /**
+ * @brief Return grouping specification.
+ *
+ * This function returns a string representing groupings for the
+ * integer part of a number. Groupings indicate where thousands
+ * separators should be inserted in the integer part of a number.
+ *
+ * Each char in the return string is interpret as an integer
+ * rather than a character. These numbers represent the number
+ * of digits in a group. The first char in the string
+ * represents the number of digits in the least significant
+ * group. If a char is negative, it indicates an unlimited
+ * number of digits for the group. If more chars from the
+ * string are required to group a number, the last char is used
+ * repeatedly.
+ *
+ * For example, if the grouping() returns "\003\002" and is
+ * applied to the number 123456789, this corresponds to
+ * 12,34,56,789. Note that if the string was "32", this would
+ * put more than 50 digits into the least significant group if
+ * the character set is ASCII.
+ *
+ * The string is returned by calling
+ * numpunct<char_type>::do_grouping().
+ *
+ * @return string representing grouping specification.
+ */
+ string
+ grouping() const
+ { return this->do_grouping(); }
+
+ /**
+ * @brief Return string representation of bool true.
+ *
+ * This function returns a string_type containing the text
+ * representation for true bool variables. It does so by calling
+ * numpunct<char_type>::do_truename().
+ *
+ * @return string_type representing printed form of true.
+ */
+ string_type
+ truename() const
+ { return this->do_truename(); }
+
+ /**
+ * @brief Return string representation of bool false.
+ *
+ * This function returns a string_type containing the text
+ * representation for false bool variables. It does so by calling
+ * numpunct<char_type>::do_falsename().
+ *
+ * @return string_type representing printed form of false.
+ */
+ string_type
+ falsename() const
+ { return this->do_falsename(); }
+
+ protected:
+ /// Destructor.
+ virtual
+ ~numpunct();
+
+ /**
+ * @brief Return decimal point character.
+ *
+ * Returns a char_type to use as a decimal point. This function is a
+ * hook for derived classes to change the value returned.
+ *
+ * @return @a char_type representing a decimal point.
+ */
+ virtual char_type
+ do_decimal_point() const
+ { return _M_data->_M_decimal_point; }
+
+ /**
+ * @brief Return thousands separator character.
+ *
+ * Returns a char_type to use as a thousands separator. This function
+ * is a hook for derived classes to change the value returned.
+ *
+ * @return @a char_type representing a thousands separator.
+ */
+ virtual char_type
+ do_thousands_sep() const
+ { return _M_data->_M_thousands_sep; }
+
+ /**
+ * @brief Return grouping specification.
+ *
+ * Returns a string representing groupings for the integer part of a
+ * number. This function is a hook for derived classes to change the
+ * value returned. @see grouping() for details.
+ *
+ * @return String representing grouping specification.
+ */
+ virtual string
+ do_grouping() const
+ { return _M_data->_M_grouping; }
+
+ /**
+ * @brief Return string representation of bool true.
+ *
+ * Returns a string_type containing the text representation for true
+ * bool variables. This function is a hook for derived classes to
+ * change the value returned.
+ *
+ * @return string_type representing printed form of true.
+ */
+ virtual string_type
+ do_truename() const
+ { return _M_data->_M_truename; }
+
+ /**
+ * @brief Return string representation of bool false.
+ *
+ * Returns a string_type containing the text representation for false
+ * bool variables. This function is a hook for derived classes to
+ * change the value returned.
+ *
+ * @return string_type representing printed form of false.
+ */
+ virtual string_type
+ do_falsename() const
+ { return _M_data->_M_falsename; }
+
+ // For use at construction time only.
+ void
+ _M_initialize_numpunct(__c_locale __cloc = 0);
+ };
+
+ template<typename _CharT>
+ locale::id numpunct<_CharT>::id;
+
+ template<>
+ numpunct<char>::~numpunct();
+
+ template<>
+ void
+ numpunct<char>::_M_initialize_numpunct(__c_locale __cloc);
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ template<>
+ numpunct<wchar_t>::~numpunct();
+
+ template<>
+ void
+ numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc);
+#endif
+
+ /// class numpunct_byname [22.2.3.2].
+ template<typename _CharT>
+ class numpunct_byname : public numpunct<_CharT>
+ {
+ public:
+ typedef _CharT char_type;
+ typedef basic_string<_CharT> string_type;
+
+ explicit
+ numpunct_byname(const char* __s, size_t __refs = 0)
+ : numpunct<_CharT>(__refs)
+ {
+ if (__builtin_strcmp(__s, "C") != 0
+ && __builtin_strcmp(__s, "POSIX") != 0)
+ {
+ __c_locale __tmp;
+ this->_S_create_c_locale(__tmp, __s);
+ this->_M_initialize_numpunct(__tmp);
+ this->_S_destroy_c_locale(__tmp);
+ }
+ }
+
+ protected:
+ virtual
+ ~numpunct_byname() { }
+ };
+
+_GLIBCXX_BEGIN_NAMESPACE_LDBL
+
+ /**
+ * @brief Primary class template num_get.
+ * @ingroup locales
+ *
+ * This facet encapsulates the code to parse and return a number
+ * from a string. It is used by the istream numeric extraction
+ * operators.
+ *
+ * The num_get template uses protected virtual functions to provide the
+ * actual results. The public accessors forward the call to the virtual
+ * functions. These virtual functions are hooks for developers to
+ * implement the behavior they require from the num_get facet.
+ */
+ template<typename _CharT, typename _InIter>
+ class num_get : public locale::facet
+ {
+ public:
+ // Types:
+ //@{
+ /// Public typedefs
+ typedef _CharT char_type;
+ typedef _InIter iter_type;
+ //@}
+
+ /// Numpunct facet id.
+ static locale::id id;
+
+ /**
+ * @brief Constructor performs initialization.
+ *
+ * This is the constructor provided by the standard.
+ *
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ num_get(size_t __refs = 0) : facet(__refs) { }
+
+ /**
+ * @brief Numeric parsing.
+ *
+ * Parses the input stream into the bool @a v. It does so by calling
+ * num_get::do_get().
+ *
+ * If ios_base::boolalpha is set, attempts to read
+ * ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets
+ * @a v to true or false if successful. Sets err to
+ * ios_base::failbit if reading the string fails. Sets err to
+ * ios_base::eofbit if the stream is emptied.
+ *
+ * If ios_base::boolalpha is not set, proceeds as with reading a long,
+ * except if the value is 1, sets @a v to true, if the value is 0, sets
+ * @a v to false, and otherwise set err to ios_base::failbit.
+ *
+ * @param __in Start of input stream.
+ * @param __end End of input stream.
+ * @param __io Source of locale and flags.
+ * @param __err Error flags to set.
+ * @param __v Value to format and insert.
+ * @return Iterator after reading.
+ */
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, bool& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ //@{
+ /**
+ * @brief Numeric parsing.
+ *
+ * Parses the input stream into the integral variable @a v. It does so
+ * by calling num_get::do_get().
+ *
+ * Parsing is affected by the flag settings in @a io.
+ *
+ * The basic parse is affected by the value of io.flags() &
+ * ios_base::basefield. If equal to ios_base::oct, parses like the
+ * scanf %o specifier. Else if equal to ios_base::hex, parses like %X
+ * specifier. Else if basefield equal to 0, parses like the %i
+ * specifier. Otherwise, parses like %d for signed and %u for unsigned
+ * types. The matching type length modifier is also used.
+ *
+ * Digit grouping is interpreted according to numpunct::grouping() and
+ * numpunct::thousands_sep(). If the pattern of digit groups isn't
+ * consistent, sets err to ios_base::failbit.
+ *
+ * If parsing the string yields a valid value for @a v, @a v is set.
+ * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
+ * Sets err to ios_base::eofbit if the stream is emptied.
+ *
+ * @param __in Start of input stream.
+ * @param __end End of input stream.
+ * @param __io Source of locale and flags.
+ * @param __err Error flags to set.
+ * @param __v Value to format and insert.
+ * @return Iterator after reading.
+ */
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, long& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned short& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned int& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned long& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, long long& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned long long& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+#endif
+ //@}
+
+ //@{
+ /**
+ * @brief Numeric parsing.
+ *
+ * Parses the input stream into the integral variable @a v. It does so
+ * by calling num_get::do_get().
+ *
+ * The input characters are parsed like the scanf %g specifier. The
+ * matching type length modifier is also used.
+ *
+ * The decimal point character used is numpunct::decimal_point().
+ * Digit grouping is interpreted according to numpunct::grouping() and
+ * numpunct::thousands_sep(). If the pattern of digit groups isn't
+ * consistent, sets err to ios_base::failbit.
+ *
+ * If parsing the string yields a valid value for @a v, @a v is set.
+ * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
+ * Sets err to ios_base::eofbit if the stream is emptied.
+ *
+ * @param __in Start of input stream.
+ * @param __end End of input stream.
+ * @param __io Source of locale and flags.
+ * @param __err Error flags to set.
+ * @param __v Value to format and insert.
+ * @return Iterator after reading.
+ */
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, float& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, double& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, long double& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+ //@}
+
+ /**
+ * @brief Numeric parsing.
+ *
+ * Parses the input stream into the pointer variable @a v. It does so
+ * by calling num_get::do_get().
+ *
+ * The input characters are parsed like the scanf %p specifier.
+ *
+ * Digit grouping is interpreted according to numpunct::grouping() and
+ * numpunct::thousands_sep(). If the pattern of digit groups isn't
+ * consistent, sets err to ios_base::failbit.
+ *
+ * Note that the digit grouping effect for pointers is a bit ambiguous
+ * in the standard and shouldn't be relied on. See DR 344.
+ *
+ * If parsing the string yields a valid value for @a v, @a v is set.
+ * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
+ * Sets err to ios_base::eofbit if the stream is emptied.
+ *
+ * @param __in Start of input stream.
+ * @param __end End of input stream.
+ * @param __io Source of locale and flags.
+ * @param __err Error flags to set.
+ * @param __v Value to format and insert.
+ * @return Iterator after reading.
+ */
+ iter_type
+ get(iter_type __in, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, void*& __v) const
+ { return this->do_get(__in, __end, __io, __err, __v); }
+
+ protected:
+ /// Destructor.
+ virtual ~num_get() { }
+
+ iter_type
+ _M_extract_float(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ string&) const;
+
+ template<typename _ValueT>
+ iter_type
+ _M_extract_int(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ _ValueT&) const;
+
+ template<typename _CharT2>
+ typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, int>::__type
+ _M_find(const _CharT2*, size_t __len, _CharT2 __c) const
+ {
+ int __ret = -1;
+ if (__len <= 10)
+ {
+ if (__c >= _CharT2('0') && __c < _CharT2(_CharT2('0') + __len))
+ __ret = __c - _CharT2('0');
+ }
+ else
+ {
+ if (__c >= _CharT2('0') && __c <= _CharT2('9'))
+ __ret = __c - _CharT2('0');
+ else if (__c >= _CharT2('a') && __c <= _CharT2('f'))
+ __ret = 10 + (__c - _CharT2('a'));
+ else if (__c >= _CharT2('A') && __c <= _CharT2('F'))
+ __ret = 10 + (__c - _CharT2('A'));
+ }
+ return __ret;
+ }
+
+ template<typename _CharT2>
+ typename __gnu_cxx::__enable_if<!__is_char<_CharT2>::__value,
+ int>::__type
+ _M_find(const _CharT2* __zero, size_t __len, _CharT2 __c) const
+ {
+ int __ret = -1;
+ const char_type* __q = char_traits<_CharT2>::find(__zero, __len, __c);
+ if (__q)
+ {
+ __ret = __q - __zero;
+ if (__ret > 15)
+ __ret -= 6;
+ }
+ return __ret;
+ }
+
+ //@{
+ /**
+ * @brief Numeric parsing.
+ *
+ * Parses the input stream into the variable @a v. This function is a
+ * hook for derived classes to change the value returned. @see get()
+ * for more details.
+ *
+ * @param __beg Start of input stream.
+ * @param __end End of input stream.
+ * @param __io Source of locale and flags.
+ * @param __err Error flags to set.
+ * @param __v Value to format and insert.
+ * @return Iterator after reading.
+ */
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const;
+
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, long& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned short& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned int& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned long& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, long long& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+
+ virtual iter_type
+ do_get(iter_type __beg, iter_type __end, ios_base& __io,
+ ios_base::iostate& __err, unsigned long long& __v) const
+ { return _M_extract_int(__beg, __end, __io, __err, __v); }
+#endif
+
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, float&) const;
+
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ double&) const;
+
+ // XXX GLIBCXX_ABI Deprecated
+#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
+ virtual iter_type
+ __do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ double&) const;
+#else
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ long double&) const;
+#endif
+
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, void*&) const;
+
+ // XXX GLIBCXX_ABI Deprecated
+#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
+ virtual iter_type
+ do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
+ long double&) const;
+#endif
+ //@}
+ };
+
+ template<typename _CharT, typename _InIter>
+ locale::id num_get<_CharT, _InIter>::id;
+
+
+ /**
+ * @brief Primary class template num_put.
+ * @ingroup locales
+ *
+ * This facet encapsulates the code to convert a number to a string. It is
+ * used by the ostream numeric insertion operators.
+ *
+ * The num_put template uses protected virtual functions to provide the
+ * actual results. The public accessors forward the call to the virtual
+ * functions. These virtual functions are hooks for developers to
+ * implement the behavior they require from the num_put facet.
+ */
+ template<typename _CharT, typename _OutIter>
+ class num_put : public locale::facet
+ {
+ public:
+ // Types:
+ //@{
+ /// Public typedefs
+ typedef _CharT char_type;
+ typedef _OutIter iter_type;
+ //@}
+
+ /// Numpunct facet id.
+ static locale::id id;
+
+ /**
+ * @brief Constructor performs initialization.
+ *
+ * This is the constructor provided by the standard.
+ *
+ * @param __refs Passed to the base facet class.
+ */
+ explicit
+ num_put(size_t __refs = 0) : facet(__refs) { }
+
+ /**
+ * @brief Numeric formatting.
+ *
+ * Formats the boolean @a v and inserts it into a stream. It does so
+ * by calling num_put::do_put().
+ *
+ * If ios_base::boolalpha is set, writes ctype<CharT>::truename() or
+ * ctype<CharT>::falsename(). Otherwise formats @a v as an int.
+ *
+ * @param __s Stream to write to.
+ * @param __io Source of locale and flags.
+ * @param __fill Char_type to use for filling.
+ * @param __v Value to format and insert.
+ * @return Iterator after writing.
+ */
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+ //@{
+ /**
+ * @brief Numeric formatting.
+ *
+ * Formats the integral value @a v and inserts it into a
+ * stream. It does so by calling num_put::do_put().
+ *
+ * Formatting is affected by the flag settings in @a io.
+ *
+ * The basic format is affected by the value of io.flags() &
+ * ios_base::basefield. If equal to ios_base::oct, formats like the
+ * printf %o specifier. Else if equal to ios_base::hex, formats like
+ * %x or %X with ios_base::uppercase unset or set respectively.
+ * Otherwise, formats like %d, %ld, %lld for signed and %u, %lu, %llu
+ * for unsigned values. Note that if both oct and hex are set, neither
+ * will take effect.
+ *
+ * If ios_base::showpos is set, '+' is output before positive values.
+ * If ios_base::showbase is set, '0' precedes octal values (except 0)
+ * and '0[xX]' precedes hex values.
+ *
+ * Thousands separators are inserted according to numpunct::grouping()
+ * and numpunct::thousands_sep(). The decimal point character used is
+ * numpunct::decimal_point().
+ *
+ * If io.width() is non-zero, enough @a fill characters are inserted to
+ * make the result at least that wide. If
+ * (io.flags() & ios_base::adjustfield) == ios_base::left, result is
+ * padded at the end. If ios_base::internal, then padding occurs
+ * immediately after either a '+' or '-' or after '0x' or '0X'.
+ * Otherwise, padding occurs at the beginning.
+ *
+ * @param __s Stream to write to.
+ * @param __io Source of locale and flags.
+ * @param __fill Char_type to use for filling.
+ * @param __v Value to format and insert.
+ * @return Iterator after writing.
+ */
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill,
+ unsigned long __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill, long long __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill,
+ unsigned long long __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+#endif
+ //@}
+
+ //@{
+ /**
+ * @brief Numeric formatting.
+ *
+ * Formats the floating point value @a v and inserts it into a stream.
+ * It does so by calling num_put::do_put().
+ *
+ * Formatting is affected by the flag settings in @a io.
+ *
+ * The basic format is affected by the value of io.flags() &
+ * ios_base::floatfield. If equal to ios_base::fixed, formats like the
+ * printf %f specifier. Else if equal to ios_base::scientific, formats
+ * like %e or %E with ios_base::uppercase unset or set respectively.
+ * Otherwise, formats like %g or %G depending on uppercase. Note that
+ * if both fixed and scientific are set, the effect will also be like
+ * %g or %G.
+ *
+ * The output precision is given by io.precision(). This precision is
+ * capped at numeric_limits::digits10 + 2 (different for double and
+ * long double). The default precision is 6.
+ *
+ * If ios_base::showpos is set, '+' is output before positive values.
+ * If ios_base::showpoint is set, a decimal point will always be
+ * output.
+ *
+ * Thousands separators are inserted according to numpunct::grouping()
+ * and numpunct::thousands_sep(). The decimal point character used is
+ * numpunct::decimal_point().
+ *
+ * If io.width() is non-zero, enough @a fill characters are inserted to
+ * make the result at least that wide. If
+ * (io.flags() & ios_base::adjustfield) == ios_base::left, result is
+ * padded at the end. If ios_base::internal, then padding occurs
+ * immediately after either a '+' or '-' or after '0x' or '0X'.
+ * Otherwise, padding occurs at the beginning.
+ *
+ * @param __s Stream to write to.
+ * @param __io Source of locale and flags.
+ * @param __fill Char_type to use for filling.
+ * @param __v Value to format and insert.
+ * @return Iterator after writing.
+ */
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill,
+ long double __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+ //@}
+
+ /**
+ * @brief Numeric formatting.
+ *
+ * Formats the pointer value @a v and inserts it into a stream. It
+ * does so by calling num_put::do_put().
+ *
+ * This function formats @a v as an unsigned long with ios_base::hex
+ * and ios_base::showbase set.
+ *
+ * @param __s Stream to write to.
+ * @param __io Source of locale and flags.
+ * @param __fill Char_type to use for filling.
+ * @param __v Value to format and insert.
+ * @return Iterator after writing.
+ */
+ iter_type
+ put(iter_type __s, ios_base& __io, char_type __fill,
+ const void* __v) const
+ { return this->do_put(__s, __io, __fill, __v); }
+
+ protected:
+ template<typename _ValueT>
+ iter_type
+ _M_insert_float(iter_type, ios_base& __io, char_type __fill,
+ char __mod, _ValueT __v) const;
+
+ void
+ _M_group_float(const char* __grouping, size_t __grouping_size,
+ char_type __sep, const char_type* __p, char_type* __new,
+ char_type* __cs, int& __len) const;
+
+ template<typename _ValueT>
+ iter_type
+ _M_insert_int(iter_type, ios_base& __io, char_type __fill,
+ _ValueT __v) const;
+
+ void
+ _M_group_int(const char* __grouping, size_t __grouping_size,
+ char_type __sep, ios_base& __io, char_type* __new,
+ char_type* __cs, int& __len) const;
+
+ void
+ _M_pad(char_type __fill, streamsize __w, ios_base& __io,
+ char_type* __new, const char_type* __cs, int& __len) const;
+
+ /// Destructor.
+ virtual
+ ~num_put() { };
+
+ //@{
+ /**
+ * @brief Numeric formatting.
+ *
+ * These functions do the work of formatting numeric values and
+ * inserting them into a stream. This function is a hook for derived
+ * classes to change the value returned.
+ *
+ * @param __s Stream to write to.
+ * @param __io Source of locale and flags.
+ * @param __fill Char_type to use for filling.
+ * @param __v Value to format and insert.
+ * @return Iterator after writing.
+ */
+ virtual iter_type
+ do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const;
+
+ virtual iter_type
+ do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
+ { return _M_insert_int(__s, __io, __fill, __v); }
+
+ virtual iter_type
+ do_put(iter_type __s, ios_base& __io, char_type __fill,
+ unsigned long __v) const
+ { return _M_insert_int(__s, __io, __fill, __v); }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+ virtual iter_type
+ do_put(iter_type __s, ios_base& __io, char_type __fill,
+ long long __v) const
+ { return _M_insert_int(__s, __io, __fill, __v); }
+
+ virtual iter_type
+ do_put(iter_type __s, ios_base& __io, char_type __fill,
+ unsigned long long __v) const
+ { return _M_insert_int(__s, __io, __fill, __v); }
+#endif
+
+ virtual iter_type
+ do_put(iter_type, ios_base&, char_type, double) const;
+
+ // XXX GLIBCXX_ABI Deprecated
+#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
+ virtual iter_type
+ __do_put(iter_type, ios_base&, char_type, double) const;
+#else
+ virtual iter_type
+ do_put(iter_type, ios_base&, char_type, long double) const;
+#endif
+
+ virtual iter_type
+ do_put(iter_type, ios_base&, char_type, const void*) const;
+
+ // XXX GLIBCXX_ABI Deprecated
+#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
+ virtual iter_type
+ do_put(iter_type, ios_base&, char_type, long double) const;
+#endif
+ //@}
+ };
+
+ template <typename _CharT, typename _OutIter>
+ locale::id num_put<_CharT, _OutIter>::id;
+
+_GLIBCXX_END_NAMESPACE_LDBL
+
+ // Subclause convenience interfaces, inlines.
+ // NB: These are inline because, when used in a loop, some compilers
+ // can hoist the body out of the loop; then it's just as fast as the
+ // C is*() function.
+
+ /// Convenience interface to ctype.is(ctype_base::space, __c).
+ template<typename _CharT>
+ inline bool
+ isspace(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::print, __c).
+ template<typename _CharT>
+ inline bool
+ isprint(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::cntrl, __c).
+ template<typename _CharT>
+ inline bool
+ iscntrl(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::upper, __c).
+ template<typename _CharT>
+ inline bool
+ isupper(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::lower, __c).
+ template<typename _CharT>
+ inline bool
+ islower(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::alpha, __c).
+ template<typename _CharT>
+ inline bool
+ isalpha(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::digit, __c).
+ template<typename _CharT>
+ inline bool
+ isdigit(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::punct, __c).
+ template<typename _CharT>
+ inline bool
+ ispunct(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::xdigit, __c).
+ template<typename _CharT>
+ inline bool
+ isxdigit(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::alnum, __c).
+ template<typename _CharT>
+ inline bool
+ isalnum(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c); }
+
+ /// Convenience interface to ctype.is(ctype_base::graph, __c).
+ template<typename _CharT>
+ inline bool
+ isgraph(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c); }
+
+ /// Convenience interface to ctype.toupper(__c).
+ template<typename _CharT>
+ inline _CharT
+ toupper(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).toupper(__c); }
+
+ /// Convenience interface to ctype.tolower(__c).
+ template<typename _CharT>
+ inline _CharT
+ tolower(_CharT __c, const locale& __loc)
+ { return use_facet<ctype<_CharT> >(__loc).tolower(__c); }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+# include <bits/locale_facets.tcc>
+
+#endif
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