X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fostream;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fostream;h=498a060c2f5626e9c28c94c2980f97f487b2b0d1;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ostream b/i686-linux-gnu-4.7/usr/include/c++/4.7/ostream new file mode 100644 index 0000000..498a060 --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ostream @@ -0,0 +1,609 @@ +// Output streams -*- 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 +// . + +/** @file include/ostream + * This is a Standard C++ Library header. + */ + +// +// ISO C++ 14882: 27.6.2 Output streams +// + +#ifndef _GLIBCXX_OSTREAM +#define _GLIBCXX_OSTREAM 1 + +#pragma GCC system_header + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief Template class basic_ostream. + * @ingroup io + * + * This is the base class for all output streams. It provides text + * formatting of all builtin types, and communicates with any class + * derived from basic_streambuf to do the actual output. + */ + template + class basic_ostream : virtual public basic_ios<_CharT, _Traits> + { + public: + // Types (inherited from basic_ios): + typedef _CharT char_type; + typedef typename _Traits::int_type int_type; + typedef typename _Traits::pos_type pos_type; + typedef typename _Traits::off_type off_type; + typedef _Traits traits_type; + + // Non-standard Types: + typedef basic_streambuf<_CharT, _Traits> __streambuf_type; + typedef basic_ios<_CharT, _Traits> __ios_type; + typedef basic_ostream<_CharT, _Traits> __ostream_type; + typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> > + __num_put_type; + typedef ctype<_CharT> __ctype_type; + + /** + * @brief Base constructor. + * + * This ctor is almost never called by the user directly, rather from + * derived classes' initialization lists, which pass a pointer to + * their own stream buffer. + */ + explicit + basic_ostream(__streambuf_type* __sb) + { this->init(__sb); } + + /** + * @brief Base destructor. + * + * This does very little apart from providing a virtual base dtor. + */ + virtual + ~basic_ostream() { } + + /// Safe prefix/suffix operations. + class sentry; + friend class sentry; + + //@{ + /** + * @brief Interface for manipulators. + * + * Manipulators such as @c std::endl and @c std::hex use these + * functions in constructs like "std::cout << std::endl". For more + * information, see the iomanip header. + */ + __ostream_type& + operator<<(__ostream_type& (*__pf)(__ostream_type&)) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 60. What is a formatted input function? + // The inserters for manipulators are *not* formatted output functions. + return __pf(*this); + } + + __ostream_type& + operator<<(__ios_type& (*__pf)(__ios_type&)) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 60. What is a formatted input function? + // The inserters for manipulators are *not* formatted output functions. + __pf(*this); + return *this; + } + + __ostream_type& + operator<<(ios_base& (*__pf) (ios_base&)) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 60. What is a formatted input function? + // The inserters for manipulators are *not* formatted output functions. + __pf(*this); + return *this; + } + //@} + + //@{ + /** + * @name Inserters + * + * All the @c operator<< functions (aka formatted output + * functions) have some common behavior. Each starts by + * constructing a temporary object of type std::basic_ostream::sentry. + * This can have several effects, concluding with the setting of a + * status flag; see the sentry documentation for more. + * + * If the sentry status is good, the function tries to generate + * whatever data is appropriate for the type of the argument. + * + * If an exception is thrown during insertion, ios_base::badbit + * will be turned on in the stream's error state without causing an + * ios_base::failure to be thrown. The original exception will then + * be rethrown. + */ + + //@{ + /** + * @brief Integer arithmetic inserters + * @param __n A variable of builtin integral type. + * @return @c *this if successful + * + * These functions use the stream's current locale (specifically, the + * @c num_get facet) to perform numeric formatting. + */ + __ostream_type& + operator<<(long __n) + { return _M_insert(__n); } + + __ostream_type& + operator<<(unsigned long __n) + { return _M_insert(__n); } + + __ostream_type& + operator<<(bool __n) + { return _M_insert(__n); } + + __ostream_type& + operator<<(short __n); + + __ostream_type& + operator<<(unsigned short __n) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 117. basic_ostream uses nonexistent num_put member functions. + return _M_insert(static_cast(__n)); + } + + __ostream_type& + operator<<(int __n); + + __ostream_type& + operator<<(unsigned int __n) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 117. basic_ostream uses nonexistent num_put member functions. + return _M_insert(static_cast(__n)); + } + +#ifdef _GLIBCXX_USE_LONG_LONG + __ostream_type& + operator<<(long long __n) + { return _M_insert(__n); } + + __ostream_type& + operator<<(unsigned long long __n) + { return _M_insert(__n); } +#endif + //@} + + //@{ + /** + * @brief Floating point arithmetic inserters + * @param __f A variable of builtin floating point type. + * @return @c *this if successful + * + * These functions use the stream's current locale (specifically, the + * @c num_get facet) to perform numeric formatting. + */ + __ostream_type& + operator<<(double __f) + { return _M_insert(__f); } + + __ostream_type& + operator<<(float __f) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 117. basic_ostream uses nonexistent num_put member functions. + return _M_insert(static_cast(__f)); + } + + __ostream_type& + operator<<(long double __f) + { return _M_insert(__f); } + //@} + + /** + * @brief Pointer arithmetic inserters + * @param __p A variable of pointer type. + * @return @c *this if successful + * + * These functions use the stream's current locale (specifically, the + * @c num_get facet) to perform numeric formatting. + */ + __ostream_type& + operator<<(const void* __p) + { return _M_insert(__p); } + + /** + * @brief Extracting from another streambuf. + * @param __sb A pointer to a streambuf + * + * This function behaves like one of the basic arithmetic extractors, + * in that it also constructs a sentry object and has the same error + * handling behavior. + * + * If @p __sb is NULL, the stream will set failbit in its error state. + * + * Characters are extracted from @p __sb and inserted into @c *this + * until one of the following occurs: + * + * - the input stream reaches end-of-file, + * - insertion into the output sequence fails (in this case, the + * character that would have been inserted is not extracted), or + * - an exception occurs while getting a character from @p __sb, which + * sets failbit in the error state + * + * If the function inserts no characters, failbit is set. + */ + __ostream_type& + operator<<(__streambuf_type* __sb); + //@} + + //@{ + /** + * @name Unformatted Output Functions + * + * All the unformatted output functions have some common behavior. + * Each starts by constructing a temporary object of type + * std::basic_ostream::sentry. This has several effects, concluding + * with the setting of a status flag; see the sentry documentation + * for more. + * + * If the sentry status is good, the function tries to generate + * whatever data is appropriate for the type of the argument. + * + * If an exception is thrown during insertion, ios_base::badbit + * will be turned on in the stream's error state. If badbit is on in + * the stream's exceptions mask, the exception will be rethrown + * without completing its actions. + */ + + /** + * @brief Simple insertion. + * @param __c The character to insert. + * @return *this + * + * Tries to insert @p __c. + * + * @note This function is not overloaded on signed char and + * unsigned char. + */ + __ostream_type& + put(char_type __c); + + /** + * @brief Core write functionality, without sentry. + * @param __s The array to insert. + * @param __n Maximum number of characters to insert. + */ + void + _M_write(const char_type* __s, streamsize __n) + { + const streamsize __put = this->rdbuf()->sputn(__s, __n); + if (__put != __n) + this->setstate(ios_base::badbit); + } + + /** + * @brief Character string insertion. + * @param __s The array to insert. + * @param __n Maximum number of characters to insert. + * @return *this + * + * Characters are copied from @p __s and inserted into the stream until + * one of the following happens: + * + * - @p __n characters are inserted + * - inserting into the output sequence fails (in this case, badbit + * will be set in the stream's error state) + * + * @note This function is not overloaded on signed char and + * unsigned char. + */ + __ostream_type& + write(const char_type* __s, streamsize __n); + //@} + + /** + * @brief Synchronizing the stream buffer. + * @return *this + * + * If @c rdbuf() is a null pointer, changes nothing. + * + * Otherwise, calls @c rdbuf()->pubsync(), and if that returns -1, + * sets badbit. + */ + __ostream_type& + flush(); + + /** + * @brief Getting the current write position. + * @return A file position object. + * + * If @c fail() is not false, returns @c pos_type(-1) to indicate + * failure. Otherwise returns @c rdbuf()->pubseekoff(0,cur,out). + */ + pos_type + tellp(); + + /** + * @brief Changing the current write position. + * @param __pos A file position object. + * @return *this + * + * If @c fail() is not true, calls @c rdbuf()->pubseekpos(pos). If + * that function fails, sets failbit. + */ + __ostream_type& + seekp(pos_type); + + /** + * @brief Changing the current write position. + * @param __off A file offset object. + * @param __dir The direction in which to seek. + * @return *this + * + * If @c fail() is not true, calls @c rdbuf()->pubseekoff(off,dir). + * If that function fails, sets failbit. + */ + __ostream_type& + seekp(off_type, ios_base::seekdir); + + protected: + basic_ostream() + { this->init(0); } + + template + __ostream_type& + _M_insert(_ValueT __v); + }; + + /** + * @brief Performs setup work for output streams. + * + * Objects of this class are created before all of the standard + * inserters are run. It is responsible for exception-safe prefix and + * suffix operations. + */ + template + class basic_ostream<_CharT, _Traits>::sentry + { + // Data Members. + bool _M_ok; + basic_ostream<_CharT, _Traits>& _M_os; + + public: + /** + * @brief The constructor performs preparatory work. + * @param __os The output stream to guard. + * + * If the stream state is good (@a __os.good() is true), then if the + * stream is tied to another output stream, @c is.tie()->flush() + * is called to synchronize the output sequences. + * + * If the stream state is still good, then the sentry state becomes + * true (@a okay). + */ + explicit + sentry(basic_ostream<_CharT, _Traits>& __os); + + /** + * @brief Possibly flushes the stream. + * + * If @c ios_base::unitbuf is set in @c os.flags(), and + * @c std::uncaught_exception() is true, the sentry destructor calls + * @c flush() on the output stream. + */ + ~sentry() + { + // XXX MT + if (bool(_M_os.flags() & ios_base::unitbuf) && !uncaught_exception()) + { + // Can't call flush directly or else will get into recursive lock. + if (_M_os.rdbuf() && _M_os.rdbuf()->pubsync() == -1) + _M_os.setstate(ios_base::badbit); + } + } + + /** + * @brief Quick status checking. + * @return The sentry state. + * + * For ease of use, sentries may be converted to booleans. The + * return value is that of the sentry state (true == okay). + */ +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + explicit +#endif + operator bool() const + { return _M_ok; } + }; + + //@{ + /** + * @brief Character inserters + * @param __out An output stream. + * @param __c A character. + * @return out + * + * Behaves like one of the formatted arithmetic inserters described in + * std::basic_ostream. After constructing a sentry object with good + * status, this function inserts a single character and any required + * padding (as determined by [22.2.2.2.2]). @c __out.width(0) is then + * called. + * + * If @p __c is of type @c char and the character type of the stream is not + * @c char, the character is widened before insertion. + */ + template + inline basic_ostream<_CharT, _Traits>& + operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) + { return __ostream_insert(__out, &__c, 1); } + + template + inline basic_ostream<_CharT, _Traits>& + operator<<(basic_ostream<_CharT, _Traits>& __out, char __c) + { return (__out << __out.widen(__c)); } + + // Specialization + template + inline basic_ostream& + operator<<(basic_ostream& __out, char __c) + { return __ostream_insert(__out, &__c, 1); } + + // Signed and unsigned + template + inline basic_ostream& + operator<<(basic_ostream& __out, signed char __c) + { return (__out << static_cast(__c)); } + + template + inline basic_ostream& + operator<<(basic_ostream& __out, unsigned char __c) + { return (__out << static_cast(__c)); } + //@} + + //@{ + /** + * @brief String inserters + * @param __out An output stream. + * @param __s A character string. + * @return out + * @pre @p __s must be a non-NULL pointer + * + * Behaves like one of the formatted arithmetic inserters described in + * std::basic_ostream. After constructing a sentry object with good + * status, this function inserts @c traits::length(__s) characters starting + * at @p __s, widened if necessary, followed by any required padding (as + * determined by [22.2.2.2.2]). @c __out.width(0) is then called. + */ + template + inline basic_ostream<_CharT, _Traits>& + operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) + { + if (!__s) + __out.setstate(ios_base::badbit); + else + __ostream_insert(__out, __s, + static_cast(_Traits::length(__s))); + return __out; + } + + template + basic_ostream<_CharT, _Traits> & + operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s); + + // Partial specializations + template + inline basic_ostream& + operator<<(basic_ostream& __out, const char* __s) + { + if (!__s) + __out.setstate(ios_base::badbit); + else + __ostream_insert(__out, __s, + static_cast(_Traits::length(__s))); + return __out; + } + + // Signed and unsigned + template + inline basic_ostream& + operator<<(basic_ostream& __out, const signed char* __s) + { return (__out << reinterpret_cast(__s)); } + + template + inline basic_ostream & + operator<<(basic_ostream& __out, const unsigned char* __s) + { return (__out << reinterpret_cast(__s)); } + //@} + + // Standard basic_ostream manipulators + + /** + * @brief Write a newline and flush the stream. + * + * This manipulator is often mistakenly used when a simple newline is + * desired, leading to poor buffering performance. See + * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html + * for more on this subject. + */ + template + inline basic_ostream<_CharT, _Traits>& + endl(basic_ostream<_CharT, _Traits>& __os) + { return flush(__os.put(__os.widen('\n'))); } + + /** + * @brief Write a null character into the output sequence. + * + * Null character is @c CharT() by definition. For CharT + * of @c char, this correctly writes the ASCII @c NUL character + * string terminator. + */ + template + inline basic_ostream<_CharT, _Traits>& + ends(basic_ostream<_CharT, _Traits>& __os) + { return __os.put(_CharT()); } + + /** + * @brief Flushes the output stream. + * + * This manipulator simply calls the stream's @c flush() member function. + */ + template + inline basic_ostream<_CharT, _Traits>& + flush(basic_ostream<_CharT, _Traits>& __os) + { return __os.flush(); } + +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + /** + * @brief Generic inserter for rvalue stream + * @param __os An input stream. + * @param __x A reference to the object being inserted. + * @return os + * + * This is just a forwarding function to allow insertion to + * rvalue streams since they won't bind to the inserter functions + * that take an lvalue reference. + */ + template + inline basic_ostream<_CharT, _Traits>& + operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x) + { return (__os << __x); } +#endif // __GXX_EXPERIMENTAL_CXX0X__ + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#include + +#endif /* _GLIBCXX_OSTREAM */