X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Fistream.tcc;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Fistream.tcc;h=9055c31ce1299addcb69f6ca3055cb9c95e00f17;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/istream.tcc b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/istream.tcc new file mode 100644 index 0000000..9055c31 --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/istream.tcc @@ -0,0 +1,1094 @@ +// istream classes -*- 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 bits/istream.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{istream} + */ + +// +// ISO C++ 14882: 27.6.1 Input streams +// + +#ifndef _ISTREAM_TCC +#define _ISTREAM_TCC 1 + +#pragma GCC system_header + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + basic_istream<_CharT, _Traits>::sentry:: + sentry(basic_istream<_CharT, _Traits>& __in, bool __noskip) : _M_ok(false) + { + ios_base::iostate __err = ios_base::goodbit; + if (__in.good()) + { + if (__in.tie()) + __in.tie()->flush(); + if (!__noskip && bool(__in.flags() & ios_base::skipws)) + { + const __int_type __eof = traits_type::eof(); + __streambuf_type* __sb = __in.rdbuf(); + __int_type __c = __sb->sgetc(); + + const __ctype_type& __ct = __check_facet(__in._M_ctype); + while (!traits_type::eq_int_type(__c, __eof) + && __ct.is(ctype_base::space, + traits_type::to_char_type(__c))) + __c = __sb->snextc(); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 195. Should basic_istream::sentry's constructor ever + // set eofbit? + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + } + } + + if (__in.good() && __err == ios_base::goodbit) + _M_ok = true; + else + { + __err |= ios_base::failbit; + __in.setstate(__err); + } + } + + template + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + _M_extract(_ValueT& __v) + { + sentry __cerb(*this, false); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const __num_get_type& __ng = __check_facet(this->_M_num_get); + __ng.get(*this, 0, *this, __err, __v); + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + operator>>(short& __n) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 118. basic_istream uses nonexistent num_get member functions. + sentry __cerb(*this, false); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + long __l; + const __num_get_type& __ng = __check_facet(this->_M_num_get); + __ng.get(*this, 0, *this, __err, __l); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 696. istream::operator>>(int&) broken. + if (__l < __gnu_cxx::__numeric_traits::__min) + { + __err |= ios_base::failbit; + __n = __gnu_cxx::__numeric_traits::__min; + } + else if (__l > __gnu_cxx::__numeric_traits::__max) + { + __err |= ios_base::failbit; + __n = __gnu_cxx::__numeric_traits::__max; + } + else + __n = short(__l); + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + operator>>(int& __n) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 118. basic_istream uses nonexistent num_get member functions. + sentry __cerb(*this, false); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + long __l; + const __num_get_type& __ng = __check_facet(this->_M_num_get); + __ng.get(*this, 0, *this, __err, __l); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 696. istream::operator>>(int&) broken. + if (__l < __gnu_cxx::__numeric_traits::__min) + { + __err |= ios_base::failbit; + __n = __gnu_cxx::__numeric_traits::__min; + } + else if (__l > __gnu_cxx::__numeric_traits::__max) + { + __err |= ios_base::failbit; + __n = __gnu_cxx::__numeric_traits::__max; + } + else + __n = int(__l); + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + operator>>(__streambuf_type* __sbout) + { + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, false); + if (__cerb && __sbout) + { + __try + { + bool __ineof; + if (!__copy_streambufs_eof(this->rdbuf(), __sbout, __ineof)) + __err |= ios_base::failbit; + if (__ineof) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::failbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::failbit); } + } + else if (!__sbout) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return *this; + } + + template + typename basic_istream<_CharT, _Traits>::int_type + basic_istream<_CharT, _Traits>:: + get(void) + { + const int_type __eof = traits_type::eof(); + int_type __c = __eof; + _M_gcount = 0; + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + __c = this->rdbuf()->sbumpc(); + // 27.6.1.1 paragraph 3 + if (!traits_type::eq_int_type(__c, __eof)) + _M_gcount = 1; + else + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + if (!_M_gcount) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return __c; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + get(char_type& __c) + { + _M_gcount = 0; + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + const int_type __cb = this->rdbuf()->sbumpc(); + // 27.6.1.1 paragraph 3 + if (!traits_type::eq_int_type(__cb, traits_type::eof())) + { + _M_gcount = 1; + __c = traits_type::to_char_type(__cb); + } + else + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + if (!_M_gcount) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + get(char_type* __s, streamsize __n, char_type __delim) + { + _M_gcount = 0; + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + const int_type __idelim = traits_type::to_int_type(__delim); + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + int_type __c = __sb->sgetc(); + + while (_M_gcount + 1 < __n + && !traits_type::eq_int_type(__c, __eof) + && !traits_type::eq_int_type(__c, __idelim)) + { + *__s++ = traits_type::to_char_type(__c); + ++_M_gcount; + __c = __sb->snextc(); + } + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 243. get and getline when sentry reports failure. + if (__n > 0) + *__s = char_type(); + if (!_M_gcount) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + get(__streambuf_type& __sb, char_type __delim) + { + _M_gcount = 0; + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + const int_type __idelim = traits_type::to_int_type(__delim); + const int_type __eof = traits_type::eof(); + __streambuf_type* __this_sb = this->rdbuf(); + int_type __c = __this_sb->sgetc(); + char_type __c2 = traits_type::to_char_type(__c); + + while (!traits_type::eq_int_type(__c, __eof) + && !traits_type::eq_int_type(__c, __idelim) + && !traits_type::eq_int_type(__sb.sputc(__c2), __eof)) + { + ++_M_gcount; + __c = __this_sb->snextc(); + __c2 = traits_type::to_char_type(__c); + } + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + if (!_M_gcount) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + getline(char_type* __s, streamsize __n, char_type __delim) + { + _M_gcount = 0; + ios_base::iostate __err = ios_base::goodbit; + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + const int_type __idelim = traits_type::to_int_type(__delim); + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + int_type __c = __sb->sgetc(); + + while (_M_gcount + 1 < __n + && !traits_type::eq_int_type(__c, __eof) + && !traits_type::eq_int_type(__c, __idelim)) + { + *__s++ = traits_type::to_char_type(__c); + __c = __sb->snextc(); + ++_M_gcount; + } + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + else + { + if (traits_type::eq_int_type(__c, __idelim)) + { + __sb->sbumpc(); + ++_M_gcount; + } + else + __err |= ios_base::failbit; + } + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 243. get and getline when sentry reports failure. + if (__n > 0) + *__s = char_type(); + if (!_M_gcount) + __err |= ios_base::failbit; + if (__err) + this->setstate(__err); + return *this; + } + + // We provide three overloads, since the first two are much simpler + // than the general case. Also, the latter two can thus adopt the + // same "batchy" strategy used by getline above. + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + ignore(void) + { + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + + if (traits_type::eq_int_type(__sb->sbumpc(), __eof)) + __err |= ios_base::eofbit; + else + _M_gcount = 1; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + ignore(streamsize __n) + { + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb && __n > 0) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + int_type __c = __sb->sgetc(); + + // N.B. On LFS-enabled platforms streamsize is still 32 bits + // wide: if we want to implement the standard mandated behavior + // for n == max() (see 27.6.1.3/24) we are at risk of signed + // integer overflow: thus these contortions. Also note that, + // by definition, when more than 2G chars are actually ignored, + // _M_gcount (the return value of gcount, that is) cannot be + // really correct, being unavoidably too small. + bool __large_ignore = false; + while (true) + { + while (_M_gcount < __n + && !traits_type::eq_int_type(__c, __eof)) + { + ++_M_gcount; + __c = __sb->snextc(); + } + if (__n == __gnu_cxx::__numeric_traits::__max + && !traits_type::eq_int_type(__c, __eof)) + { + _M_gcount = + __gnu_cxx::__numeric_traits::__min; + __large_ignore = true; + } + else + break; + } + + if (__large_ignore) + _M_gcount = __gnu_cxx::__numeric_traits::__max; + + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + ignore(streamsize __n, int_type __delim) + { + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb && __n > 0) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + int_type __c = __sb->sgetc(); + + // See comment above. + bool __large_ignore = false; + while (true) + { + while (_M_gcount < __n + && !traits_type::eq_int_type(__c, __eof) + && !traits_type::eq_int_type(__c, __delim)) + { + ++_M_gcount; + __c = __sb->snextc(); + } + if (__n == __gnu_cxx::__numeric_traits::__max + && !traits_type::eq_int_type(__c, __eof) + && !traits_type::eq_int_type(__c, __delim)) + { + _M_gcount = + __gnu_cxx::__numeric_traits::__min; + __large_ignore = true; + } + else + break; + } + + if (__large_ignore) + _M_gcount = __gnu_cxx::__numeric_traits::__max; + + if (traits_type::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + else if (traits_type::eq_int_type(__c, __delim)) + { + if (_M_gcount + < __gnu_cxx::__numeric_traits::__max) + ++_M_gcount; + __sb->sbumpc(); + } + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + typename basic_istream<_CharT, _Traits>::int_type + basic_istream<_CharT, _Traits>:: + peek(void) + { + int_type __c = traits_type::eof(); + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + __c = this->rdbuf()->sgetc(); + if (traits_type::eq_int_type(__c, traits_type::eof())) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return __c; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + read(char_type* __s, streamsize __n) + { + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + _M_gcount = this->rdbuf()->sgetn(__s, __n); + if (_M_gcount != __n) + __err |= (ios_base::eofbit | ios_base::failbit); + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + streamsize + basic_istream<_CharT, _Traits>:: + readsome(char_type* __s, streamsize __n) + { + _M_gcount = 0; + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + // Cannot compare int_type with streamsize generically. + const streamsize __num = this->rdbuf()->in_avail(); + if (__num > 0) + _M_gcount = this->rdbuf()->sgetn(__s, std::min(__num, __n)); + else if (__num == -1) + __err |= ios_base::eofbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return _M_gcount; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + putback(char_type __c) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 60. What is a formatted input function? + _M_gcount = 0; + // Clear eofbit per N3168. + this->clear(this->rdstate() & ~ios_base::eofbit); + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + if (!__sb + || traits_type::eq_int_type(__sb->sputbackc(__c), __eof)) + __err |= ios_base::badbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + unget(void) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 60. What is a formatted input function? + _M_gcount = 0; + // Clear eofbit per N3168. + this->clear(this->rdstate() & ~ios_base::eofbit); + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const int_type __eof = traits_type::eof(); + __streambuf_type* __sb = this->rdbuf(); + if (!__sb + || traits_type::eq_int_type(__sb->sungetc(), __eof)) + __err |= ios_base::badbit; + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + int + basic_istream<_CharT, _Traits>:: + sync(void) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR60. Do not change _M_gcount. + int __ret = -1; + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + __streambuf_type* __sb = this->rdbuf(); + if (__sb) + { + if (__sb->pubsync() == -1) + __err |= ios_base::badbit; + else + __ret = 0; + } + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return __ret; + } + + template + typename basic_istream<_CharT, _Traits>::pos_type + basic_istream<_CharT, _Traits>:: + tellg(void) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR60. Do not change _M_gcount. + pos_type __ret = pos_type(-1); + sentry __cerb(*this, true); + if (__cerb) + { + __try + { + if (!this->fail()) + __ret = this->rdbuf()->pubseekoff(0, ios_base::cur, + ios_base::in); + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + } + return __ret; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + seekg(pos_type __pos) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR60. Do not change _M_gcount. + // Clear eofbit per N3168. + this->clear(this->rdstate() & ~ios_base::eofbit); + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + if (!this->fail()) + { + // 136. seekp, seekg setting wrong streams? + const pos_type __p = this->rdbuf()->pubseekpos(__pos, + ios_base::in); + + // 129. Need error indication from seekp() and seekg() + if (__p == pos_type(off_type(-1))) + __err |= ios_base::failbit; + } + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + template + basic_istream<_CharT, _Traits>& + basic_istream<_CharT, _Traits>:: + seekg(off_type __off, ios_base::seekdir __dir) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR60. Do not change _M_gcount. + // Clear eofbit per N3168. + this->clear(this->rdstate() & ~ios_base::eofbit); + sentry __cerb(*this, true); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + if (!this->fail()) + { + // 136. seekp, seekg setting wrong streams? + const pos_type __p = this->rdbuf()->pubseekoff(__off, __dir, + ios_base::in); + + // 129. Need error indication from seekp() and seekg() + if (__p == pos_type(off_type(-1))) + __err |= ios_base::failbit; + } + } + __catch(__cxxabiv1::__forced_unwind&) + { + this->_M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { this->_M_setstate(ios_base::badbit); } + if (__err) + this->setstate(__err); + } + return *this; + } + + // 27.6.1.2.3 Character extraction templates + template + basic_istream<_CharT, _Traits>& + operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) + { + typedef basic_istream<_CharT, _Traits> __istream_type; + typedef typename __istream_type::int_type __int_type; + + typename __istream_type::sentry __cerb(__in, false); + if (__cerb) + { + ios_base::iostate __err = ios_base::goodbit; + __try + { + const __int_type __cb = __in.rdbuf()->sbumpc(); + if (!_Traits::eq_int_type(__cb, _Traits::eof())) + __c = _Traits::to_char_type(__cb); + else + __err |= (ios_base::eofbit | ios_base::failbit); + } + __catch(__cxxabiv1::__forced_unwind&) + { + __in._M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { __in._M_setstate(ios_base::badbit); } + if (__err) + __in.setstate(__err); + } + return __in; + } + + template + basic_istream<_CharT, _Traits>& + operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) + { + typedef basic_istream<_CharT, _Traits> __istream_type; + typedef basic_streambuf<_CharT, _Traits> __streambuf_type; + typedef typename _Traits::int_type int_type; + typedef _CharT char_type; + typedef ctype<_CharT> __ctype_type; + + streamsize __extracted = 0; + ios_base::iostate __err = ios_base::goodbit; + typename __istream_type::sentry __cerb(__in, false); + if (__cerb) + { + __try + { + // Figure out how many characters to extract. + streamsize __num = __in.width(); + if (__num <= 0) + __num = __gnu_cxx::__numeric_traits::__max; + + const __ctype_type& __ct = use_facet<__ctype_type>(__in.getloc()); + + const int_type __eof = _Traits::eof(); + __streambuf_type* __sb = __in.rdbuf(); + int_type __c = __sb->sgetc(); + + while (__extracted < __num - 1 + && !_Traits::eq_int_type(__c, __eof) + && !__ct.is(ctype_base::space, + _Traits::to_char_type(__c))) + { + *__s++ = _Traits::to_char_type(__c); + ++__extracted; + __c = __sb->snextc(); + } + if (_Traits::eq_int_type(__c, __eof)) + __err |= ios_base::eofbit; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 68. Extractors for char* should store null at end + *__s = char_type(); + __in.width(0); + } + __catch(__cxxabiv1::__forced_unwind&) + { + __in._M_setstate(ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { __in._M_setstate(ios_base::badbit); } + } + if (!__extracted) + __err |= ios_base::failbit; + if (__err) + __in.setstate(__err); + return __in; + } + + // 27.6.1.4 Standard basic_istream manipulators + template + basic_istream<_CharT, _Traits>& + ws(basic_istream<_CharT, _Traits>& __in) + { + typedef basic_istream<_CharT, _Traits> __istream_type; + typedef basic_streambuf<_CharT, _Traits> __streambuf_type; + typedef typename __istream_type::int_type __int_type; + typedef ctype<_CharT> __ctype_type; + + const __ctype_type& __ct = use_facet<__ctype_type>(__in.getloc()); + const __int_type __eof = _Traits::eof(); + __streambuf_type* __sb = __in.rdbuf(); + __int_type __c = __sb->sgetc(); + + while (!_Traits::eq_int_type(__c, __eof) + && __ct.is(ctype_base::space, _Traits::to_char_type(__c))) + __c = __sb->snextc(); + + if (_Traits::eq_int_type(__c, __eof)) + __in.setstate(ios_base::eofbit); + return __in; + } + + // Inhibit implicit instantiations for required instantiations, + // which are defined via explicit instantiations elsewhere. +#if _GLIBCXX_EXTERN_TEMPLATE + extern template class basic_istream; + extern template istream& ws(istream&); + extern template istream& operator>>(istream&, char&); + extern template istream& operator>>(istream&, char*); + extern template istream& operator>>(istream&, unsigned char&); + extern template istream& operator>>(istream&, signed char&); + extern template istream& operator>>(istream&, unsigned char*); + extern template istream& operator>>(istream&, signed char*); + + extern template istream& istream::_M_extract(unsigned short&); + extern template istream& istream::_M_extract(unsigned int&); + extern template istream& istream::_M_extract(long&); + extern template istream& istream::_M_extract(unsigned long&); + extern template istream& istream::_M_extract(bool&); +#ifdef _GLIBCXX_USE_LONG_LONG + extern template istream& istream::_M_extract(long long&); + extern template istream& istream::_M_extract(unsigned long long&); +#endif + extern template istream& istream::_M_extract(float&); + extern template istream& istream::_M_extract(double&); + extern template istream& istream::_M_extract(long double&); + extern template istream& istream::_M_extract(void*&); + + extern template class basic_iostream; + +#ifdef _GLIBCXX_USE_WCHAR_T + extern template class basic_istream; + extern template wistream& ws(wistream&); + extern template wistream& operator>>(wistream&, wchar_t&); + extern template wistream& operator>>(wistream&, wchar_t*); + + extern template wistream& wistream::_M_extract(unsigned short&); + extern template wistream& wistream::_M_extract(unsigned int&); + extern template wistream& wistream::_M_extract(long&); + extern template wistream& wistream::_M_extract(unsigned long&); + extern template wistream& wistream::_M_extract(bool&); +#ifdef _GLIBCXX_USE_LONG_LONG + extern template wistream& wistream::_M_extract(long long&); + extern template wistream& wistream::_M_extract(unsigned long long&); +#endif + extern template wistream& wistream::_M_extract(float&); + extern template wistream& wistream::_M_extract(double&); + extern template wistream& wistream::_M_extract(long double&); + extern template wistream& wistream::_M_extract(void*&); + + extern template class basic_iostream; +#endif +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif