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      1 // -*- C++ -*- forwarding header.
      2 
      3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
      4 // 2006, 2007, 2008, 2009
      5 // Free Software Foundation, Inc.
      6 //
      7 // This file is part of the GNU ISO C++ Library.  This library is free
      8 // software; you can redistribute it and/or modify it under the
      9 // terms of the GNU General Public License as published by the
     10 // Free Software Foundation; either version 3, or (at your option)
     11 // any later version.
     12 
     13 // This library is distributed in the hope that it will be useful,
     14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16 // GNU General Public License for more details.
     17 
     18 // Under Section 7 of GPL version 3, you are granted additional
     19 // permissions described in the GCC Runtime Library Exception, version
     20 // 3.1, as published by the Free Software Foundation.
     21 
     22 // You should have received a copy of the GNU General Public License and
     23 // a copy of the GCC Runtime Library Exception along with this program;
     24 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     25 // <http://www.gnu.org/licenses/>.
     26 
     27 /** @file include/cwchar
     28  *  This is a Standard C++ Library file.  You should @c #include this file
     29  *  in your programs, rather than any of the "*.h" implementation files.
     30  *
     31  *  This is the C++ version of the Standard C Library header @c wchar.h,
     32  *  and its contents are (mostly) the same as that header, but are all
     33  *  contained in the namespace @c std (except for names which are defined
     34  *  as macros in C).
     35  */
     36 
     37 //
     38 // ISO C++ 14882: 21.4
     39 //
     40 
     41 #pragma GCC system_header
     42 
     43 #include <bits/c++config.h>
     44 #include <cstddef>
     45 
     46 #if _GLIBCXX_HAVE_WCHAR_H
     47 #include <wchar.h>
     48 #endif
     49 
     50 #ifndef _GLIBCXX_CWCHAR
     51 #define _GLIBCXX_CWCHAR 1
     52 
     53 // Need to do a bit of trickery here with mbstate_t as char_traits
     54 // assumes it is in wchar.h, regardless of wchar_t specializations.
     55 #ifndef _GLIBCXX_HAVE_MBSTATE_T
     56 extern "C"
     57 {
     58   typedef struct
     59   {
     60     int __fill[6];
     61   } mbstate_t;
     62 }
     63 #endif
     64 
     65 _GLIBCXX_BEGIN_NAMESPACE(std)
     66 
     67   using ::mbstate_t;
     68 
     69 _GLIBCXX_END_NAMESPACE
     70 
     71 // Get rid of those macros defined in <wchar.h> in lieu of real functions.
     72 #undef btowc
     73 #undef fgetwc
     74 #undef fgetws
     75 #undef fputwc
     76 #undef fputws
     77 #undef fwide
     78 #undef fwprintf
     79 #undef fwscanf
     80 #undef getwc
     81 #undef getwchar
     82 #undef mbrlen
     83 #undef mbrtowc
     84 #undef mbsinit
     85 #undef mbsrtowcs
     86 #undef putwc
     87 #undef putwchar
     88 #undef swprintf
     89 #undef swscanf
     90 #undef ungetwc
     91 #undef vfwprintf
     92 #if _GLIBCXX_HAVE_VFWSCANF
     93 # undef vfwscanf
     94 #endif
     95 #undef vswprintf
     96 #if _GLIBCXX_HAVE_VSWSCANF
     97 # undef vswscanf
     98 #endif
     99 #undef vwprintf
    100 #if _GLIBCXX_HAVE_VWSCANF
    101 # undef vwscanf
    102 #endif
    103 #undef wcrtomb
    104 #undef wcscat
    105 #undef wcschr
    106 #undef wcscmp
    107 #undef wcscoll
    108 #undef wcscpy
    109 #undef wcscspn
    110 #undef wcsftime
    111 #undef wcslen
    112 #undef wcsncat
    113 #undef wcsncmp
    114 #undef wcsncpy
    115 #undef wcspbrk
    116 #undef wcsrchr
    117 #undef wcsrtombs
    118 #undef wcsspn
    119 #undef wcsstr
    120 #undef wcstod
    121 #if _GLIBCXX_HAVE_WCSTOF
    122 # undef wcstof
    123 #endif
    124 #undef wcstok
    125 #undef wcstol
    126 #undef wcstoul
    127 #undef wcsxfrm
    128 #undef wctob
    129 #undef wmemchr
    130 #undef wmemcmp
    131 #undef wmemcpy
    132 #undef wmemmove
    133 #undef wmemset
    134 #undef wprintf
    135 #undef wscanf
    136 
    137 #if _GLIBCXX_USE_WCHAR_T
    138 
    139 _GLIBCXX_BEGIN_NAMESPACE(std)
    140 
    141   using ::wint_t;
    142 
    143   using ::btowc;
    144   using ::fgetwc;
    145   using ::fgetws;
    146   using ::fputwc;
    147   using ::fputws;
    148   using ::fwide;
    149   using ::fwprintf;
    150   using ::fwscanf;
    151   using ::getwc;
    152   using ::getwchar;
    153   using ::mbrlen;
    154   using ::mbrtowc;
    155   using ::mbsinit;
    156   using ::mbsrtowcs;
    157   using ::putwc;
    158   using ::putwchar;
    159   using ::swprintf;
    160   using ::swscanf;
    161   using ::ungetwc;
    162   using ::vfwprintf;
    163 #if _GLIBCXX_HAVE_VFWSCANF
    164   using ::vfwscanf;
    165 #endif
    166   using ::vswprintf;
    167 #if _GLIBCXX_HAVE_VSWSCANF
    168   using ::vswscanf;
    169 #endif
    170   using ::vwprintf;
    171 #if _GLIBCXX_HAVE_VWSCANF
    172   using ::vwscanf;
    173 #endif
    174   using ::wcrtomb;
    175   using ::wcscat;
    176   using ::wcscmp;
    177   using ::wcscoll;
    178   using ::wcscpy;
    179   using ::wcscspn;
    180   using ::wcsftime;
    181   using ::wcslen;
    182   using ::wcsncat;
    183   using ::wcsncmp;
    184   using ::wcsncpy;
    185   using ::wcsrtombs;
    186   using ::wcsspn;
    187   using ::wcstod;
    188 #if _GLIBCXX_HAVE_WCSTOF
    189   using ::wcstof;
    190 #endif
    191   using ::wcstok;
    192   using ::wcstol;
    193   using ::wcstoul;
    194   using ::wcsxfrm;
    195   using ::wctob;
    196   using ::wmemcmp;
    197   using ::wmemcpy;
    198   using ::wmemmove;
    199   using ::wmemset;
    200   using ::wprintf;
    201   using ::wscanf;
    202   using ::wcschr;
    203   using ::wcspbrk;
    204   using ::wcsrchr;
    205   using ::wcsstr;
    206   using ::wmemchr;
    207 
    208 #ifndef __CORRECT_ISO_CPP_WCHAR_H_PROTO
    209   inline wchar_t*
    210   wcschr(wchar_t* __p, wchar_t __c)
    211   { return wcschr(const_cast<const wchar_t*>(__p), __c); }
    212 
    213   inline wchar_t*
    214   wcspbrk(wchar_t* __s1, const wchar_t* __s2)
    215   { return wcspbrk(const_cast<const wchar_t*>(__s1), __s2); }
    216 
    217   inline wchar_t*
    218   wcsrchr(wchar_t* __p, wchar_t __c)
    219   { return wcsrchr(const_cast<const wchar_t*>(__p), __c); }
    220 
    221   inline wchar_t*
    222   wcsstr(wchar_t* __s1, const wchar_t* __s2)
    223   { return wcsstr(const_cast<const wchar_t*>(__s1), __s2); }
    224 
    225   inline wchar_t*
    226   wmemchr(wchar_t* __p, wchar_t __c, size_t __n)
    227   { return wmemchr(const_cast<const wchar_t*>(__p), __c, __n); }
    228 #endif
    229 
    230 _GLIBCXX_END_NAMESPACE
    231 
    232 #if _GLIBCXX_USE_C99
    233 
    234 #undef wcstold
    235 #undef wcstoll
    236 #undef wcstoull
    237 
    238 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
    239 
    240 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
    241   extern "C" long double
    242     (wcstold)(const wchar_t * restrict, wchar_t ** restrict);
    243 #endif
    244 #if !_GLIBCXX_USE_C99_DYNAMIC
    245   using ::wcstold;
    246 #endif
    247 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    248   extern "C" long long int
    249     (wcstoll)(const wchar_t * restrict, wchar_t ** restrict, int);
    250   extern "C" unsigned long long int
    251     (wcstoull)(const wchar_t * restrict, wchar_t ** restrict, int);
    252 #endif
    253 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    254   using ::wcstoll;
    255   using ::wcstoull;
    256 #endif
    257 
    258 _GLIBCXX_END_NAMESPACE
    259 
    260 _GLIBCXX_BEGIN_NAMESPACE(std)
    261 
    262   using ::__gnu_cxx::wcstold;
    263   using ::__gnu_cxx::wcstoll;
    264   using ::__gnu_cxx::wcstoull;
    265 
    266 _GLIBCXX_END_NAMESPACE
    267 
    268 #endif
    269 
    270 #endif //_GLIBCXX_USE_WCHAR_T
    271 
    272 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    273 #  if defined(_GLIBCXX_INCLUDE_AS_TR1)
    274 #    error C++0x header cannot be included from TR1 header
    275 #  endif
    276 #  if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
    277 #    include <tr1_impl/cwchar>
    278 #  else
    279 #    define _GLIBCXX_INCLUDE_AS_CXX0X
    280 #    define _GLIBCXX_BEGIN_NAMESPACE_TR1
    281 #    define _GLIBCXX_END_NAMESPACE_TR1
    282 #    define _GLIBCXX_TR1
    283 #    include <tr1_impl/cwchar>
    284 #    undef _GLIBCXX_TR1
    285 #    undef _GLIBCXX_END_NAMESPACE_TR1
    286 #    undef _GLIBCXX_BEGIN_NAMESPACE_TR1
    287 #    undef _GLIBCXX_INCLUDE_AS_CXX0X
    288 #  endif
    289 #endif
    290 
    291 #endif
    292