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f13a69eccf
2002-07-30 Benjamin Kosnik <bkoz@redhat.com>
Gabriel Dos Reis <gdr@nerim.net>
* include/bits/char_traits.h: Remove generic definitions.
* include/bits/streambuf_iterator.h (istreambuf_iterator): Use
eof, not -2.
* include/bits/istream.tcc (istream::readsome): Don't check
against eof, instead use constants.
(istream::sync): Same.
(istream::sentry::sentry): Use eq_int_type.
(istream::get): Same.
* include/bits/ostream.tcc: Change __pad to
__pad<_CharT, _Traits>::_S_pad.
* include/bits/locale_facets.h: Add __pad_traits generic and
ostreambuf_iterator specialization.
* include/bits/locale_facets.tcc: Change __pad into struct __pad
with a _CharT and _Traits template parameter and _S_pad static
member function.
* src/locale-inst.cc: Update __pad instantiations.
* include/std/std_fstream.h: Declare _M_underflow_common
specializations.
* src/fstream.cc: New. Add _M_underflow_common specializations.
* include/bits/fstream.tcc (filebuf::close): Use traits_type.
(filebuf::_M_underflow_common(bool)): Remove generic version, as
sys_ungetc and custom int_types don't get along.
* include/std/std_streambuf.h: Add _M_pos.
* src/Makefile.am (sources): Add fstream.cc.
* src/Makefile.in: Regenerate.
* testsuite/21_strings/capacity.cc: Add char_traits specializations.
* testsuite/22_locale/codecvt_members_unicode_char.cc: Same.
* testsuite/22_locale/codecvt_members_unicode_wchar_t.cc: Same.
* testsuite/22_locale/ctor_copy_dtor.cc: Same.
* testsuite/27_io/filebuf_virtuals.cc (test07): Move to...
* testsuite/27_io/filebuf.cc: ...here.
* testsuite/testsuite_hooks.h: Add gnu_char, gnu_int, char_traits
specialization for both.
* testsuite/27_io/streambuf.cc: Add instantiation test,
testsuite_hooks include.
* testsuite/27_io/istream.cc: Same.
* testsuite/27_io/ostream.cc: Same.
* testsuite/27_io/fstream.cc: Same.
* testsuite/27_io/stringstream.cc: Same.
* testsuite/27_io/filebuf.cc: Same.
* testsuite/27_io/stringbuf.cc: Same.
Co-Authored-By: Gabriel Dos Reis <gdr@nerim.net>
From-SVN: r55893
257 lines
7.4 KiB
C++
257 lines
7.4 KiB
C++
// Character Traits for use by standard string and iostream -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 21 Strings library
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//
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/** @file char_traits.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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#ifndef _CPP_BITS_CHAR_TRAITS_H
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#define _CPP_BITS_CHAR_TRAITS_H 1
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#pragma GCC system_header
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#include <cstring> // For memmove, memset, memchr
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#include <bits/fpos.h> // For streampos
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namespace std
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{
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// 21.1.2
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/**
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* @brief Basis for explicit traits specializations.
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*
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* @note For any given actual character type, this definition is
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* probably wrong.
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*/
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template<class _CharT>
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struct char_traits
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{
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typedef _CharT char_type;
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// Unsigned as wint_t is unsigned.
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typedef unsigned long int_type;
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typedef streampos pos_type;
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typedef streamoff off_type;
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typedef mbstate_t state_type;
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static void
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assign(char_type& __c1, const char_type& __c2);
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static bool
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eq(const char_type& __c1, const char_type& __c2);
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static bool
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lt(const char_type& __c1, const char_type& __c2);
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static int
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compare(const char_type* __s1, const char_type* __s2, size_t __n);
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static size_t
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length(const char_type* __s);
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static const char_type*
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find(const char_type* __s, size_t __n, const char_type& __a);
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static char_type*
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move(char_type* __s1, const char_type* __s2, size_t __n);
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static char_type*
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copy(char_type* __s1, const char_type* __s2, size_t __n);
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static char_type*
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assign(char_type* __s, size_t __n, char_type __a);
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static char_type
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to_char_type(const int_type& __c);
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static int_type
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to_int_type(const char_type& __c);
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static bool
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eq_int_type(const int_type& __c1, const int_type& __c2);
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static int_type
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eof();
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static int_type
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not_eof(const int_type& __c);
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};
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/// 21.1.4 char_traits specializations
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template<>
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struct char_traits<char>
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{
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typedef char char_type;
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typedef int int_type;
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typedef streampos pos_type;
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typedef streamoff off_type;
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typedef mbstate_t state_type;
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static void
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assign(char_type& __c1, const char_type& __c2)
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{ __c1 = __c2; }
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static bool
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eq(const char_type& __c1, const char_type& __c2)
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{ return __c1 == __c2; }
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static bool
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lt(const char_type& __c1, const char_type& __c2)
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{ return __c1 < __c2; }
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static int
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compare(const char_type* __s1, const char_type* __s2, size_t __n)
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{ return memcmp(__s1, __s2, __n); }
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static size_t
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length(const char_type* __s)
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{ return strlen(__s); }
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static const char_type*
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find(const char_type* __s, size_t __n, const char_type& __a)
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{ return static_cast<const char_type*>(memchr(__s, __a, __n)); }
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static char_type*
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move(char_type* __s1, const char_type* __s2, size_t __n)
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{ return static_cast<char_type*>(memmove(__s1, __s2, __n)); }
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static char_type*
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copy(char_type* __s1, const char_type* __s2, size_t __n)
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{ return static_cast<char_type*>(memcpy(__s1, __s2, __n)); }
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static char_type*
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assign(char_type* __s, size_t __n, char_type __a)
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{ return static_cast<char_type*>(memset(__s, __a, __n)); }
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static char_type
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to_char_type(const int_type& __c)
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{ return static_cast<char_type>(__c); }
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// To keep both the byte 0xff and the eof symbol 0xffffffff
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// from ending up as 0xffffffff.
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static int_type
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to_int_type(const char_type& __c)
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{ return static_cast<int_type>(static_cast<unsigned char>(__c)); }
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static bool
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eq_int_type(const int_type& __c1, const int_type& __c2)
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{ return __c1 == __c2; }
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static int_type
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eof() { return static_cast<int_type>(EOF); }
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static int_type
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not_eof(const int_type& __c)
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{ return (__c == eof()) ? 0 : __c; }
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};
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#ifdef _GLIBCPP_USE_WCHAR_T
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template<>
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struct char_traits<wchar_t>
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{
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typedef wchar_t char_type;
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typedef wint_t int_type;
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typedef streamoff off_type;
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typedef wstreampos pos_type;
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typedef mbstate_t state_type;
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static void
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assign(char_type& __c1, const char_type& __c2)
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{ __c1 = __c2; }
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static bool
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eq(const char_type& __c1, const char_type& __c2)
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{ return __c1 == __c2; }
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static bool
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lt(const char_type& __c1, const char_type& __c2)
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{ return __c1 < __c2; }
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static int
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compare(const char_type* __s1, const char_type* __s2, size_t __n)
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{ return wmemcmp(__s1, __s2, __n); }
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static size_t
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length(const char_type* __s)
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{ return wcslen(__s); }
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static const char_type*
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find(const char_type* __s, size_t __n, const char_type& __a)
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{ return wmemchr(__s, __a, __n); }
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static char_type*
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move(char_type* __s1, const char_type* __s2, int_type __n)
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{ return wmemmove(__s1, __s2, __n); }
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static char_type*
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copy(char_type* __s1, const char_type* __s2, size_t __n)
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{ return wmemcpy(__s1, __s2, __n); }
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static char_type*
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assign(char_type* __s, size_t __n, char_type __a)
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{ return wmemset(__s, __a, __n); }
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static char_type
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to_char_type(const int_type& __c) { return char_type(__c); }
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static int_type
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to_int_type(const char_type& __c) { return int_type(__c); }
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static bool
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eq_int_type(const int_type& __c1, const int_type& __c2)
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{ return __c1 == __c2; }
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static int_type
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eof() { return static_cast<int_type>(WEOF); }
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static int_type
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not_eof(const int_type& __c)
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{ return eq_int_type(__c, eof()) ? 0 : __c; }
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};
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#endif //_GLIBCPP_USE_WCHAR_T
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template<typename _CharT, typename _Traits>
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struct _Char_traits_match
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{
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_CharT _M_c;
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_Char_traits_match(_CharT const& __c) : _M_c(__c) { }
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bool
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operator()(_CharT const& __a) { return _Traits::eq(_M_c, __a); }
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};
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} // namespace std
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#endif
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