diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/bits/istream.tcc')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/bits/istream.tcc | 1022 |
1 files changed, 0 insertions, 1022 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/bits/istream.tcc b/gcc-4.4.3/libstdc++-v3/include/bits/istream.tcc deleted file mode 100644 index 5d60791ec..000000000 --- a/gcc-4.4.3/libstdc++-v3/include/bits/istream.tcc +++ /dev/null @@ -1,1022 +0,0 @@ -// istream classes -*- C++ -*- - -// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, -// 2006, 2007, 2008, 2009 -// 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 istream.tcc - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -// -// ISO C++ 14882: 27.6.1 Input streams -// - -#ifndef _ISTREAM_TCC -#define _ISTREAM_TCC 1 - -#pragma GCC system_header - -#include <cxxabi-forced.h> - -_GLIBCXX_BEGIN_NAMESPACE(std) - - template<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>::sentry:: - sentry(basic_istream<_CharT, _Traits>& __in, bool __noskip) : _M_ok(false) - { - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - template<typename _ValueT> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - _M_extract(_ValueT& __v) - { - sentry __cerb(*this, false); - if (__cerb) - { - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - operator>>(short& __n) - { - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 118. basic_istream uses nonexistent num_get member functions. - long __l; - _M_extract(__l); - if (!this->fail()) - { - if (__gnu_cxx::__numeric_traits<short>::__min <= __l - && __l <= __gnu_cxx::__numeric_traits<short>::__max) - __n = short(__l); - else - this->setstate(ios_base::failbit); - } - return *this; - } - - template<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - operator>>(int& __n) - { - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 118. basic_istream uses nonexistent num_get member functions. - long __l; - _M_extract(__l); - if (!this->fail()) - { - if (__gnu_cxx::__numeric_traits<int>::__min <= __l - && __l <= __gnu_cxx::__numeric_traits<int>::__max) - __n = int(__l); - else - this->setstate(ios_base::failbit); - } - return *this; - } - - template<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - operator>>(__streambuf_type* __sbout) - { - ios_base::iostate __err = ios_base::iostate(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 _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - get(char_type& __c) - { - _M_gcount = 0; - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - get(__streambuf_type& __sb, char_type __delim) - { - _M_gcount = 0; - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<streamsize>::__max - && !traits_type::eq_int_type(__c, __eof)) - { - _M_gcount = - __gnu_cxx::__numeric_traits<streamsize>::__min; - __large_ignore = true; - } - else - break; - } - - if (__large_ignore) - _M_gcount = __gnu_cxx::__numeric_traits<streamsize>::__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<typename _CharT, typename _Traits> - 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::iostate(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<streamsize>::__max - && !traits_type::eq_int_type(__c, __eof) - && !traits_type::eq_int_type(__c, __delim)) - { - _M_gcount = - __gnu_cxx::__numeric_traits<streamsize>::__min; - __large_ignore = true; - } - else - break; - } - - if (__large_ignore) - _M_gcount = __gnu_cxx::__numeric_traits<streamsize>::__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<streamsize>::__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 _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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; - sentry __cerb(*this, true); - if (__cerb) - { - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - unget(void) - { - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 60. What is a formatted input function? - _M_gcount = 0; - sentry __cerb(*this, true); - if (__cerb) - { - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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 _CharT, typename _Traits> - 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); - __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<typename _CharT, typename _Traits> - basic_istream<_CharT, _Traits>& - basic_istream<_CharT, _Traits>:: - seekg(pos_type __pos) - { - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // DR60. Do not change _M_gcount. - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - 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. - ios_base::iostate __err = ios_base::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<typename _CharT, typename _Traits> - 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::iostate(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<streamsize>::__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<typename _CharT, typename _Traits> - 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. - // NB: This syntax is a GNU extension. -#if _GLIBCXX_EXTERN_TEMPLATE - extern template class basic_istream<char>; - 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<char>; - -#ifdef _GLIBCXX_USE_WCHAR_T - extern template class basic_istream<wchar_t>; - 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<wchar_t>; -#endif -#endif - -_GLIBCXX_END_NAMESPACE - -#endif |