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下一章会整理一下tchar.h里常见的字符串处理函数,这一章没有给出全部的代码，就给出了一些主要的宏定义
/* ++++++++++++++++++++ UNICODE ++++++++++++++++++++ */
#include <wchar.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef _WCTYPE_T_DEFINED
typedef unsigned short wint_t;
typedef unsigned short wctype_t;
#define _WCTYPE_T_DEFINED
#endif /* _WCTYPE_T_DEFINED */
#ifndef __TCHAR_DEFINED
typedef wchar_t _TCHAR;
typedef wchar_t _TSCHAR;
typedef wchar_t _TUCHAR;
typedef wchar_t _TXCHAR;
typedef wint_t _TINT;
#define __TCHAR_DEFINED
#endif /* __TCHAR_DEFINED */
#ifndef _TCHAR_DEFINED
#if !__STDC__
typedef wchar_t TCHAR;
#endif /* !__STDC__ */
#define _TCHAR_DEFINED
#endif /* _TCHAR_DEFINED */
#define _TEOF WEOF
#define __T(x) L ## x
/* Program */
#define _tmain wmain
#define _tWinMain wWinMain
#define _tenviron _wenviron
#define __targv __wargv
/* Formatted i/o */
#define _tprintf wprintf
#define _tprintf_l _wprintf_l
#define _tprintf_s wprintf_s
#define _tprintf_s_l _wprintf_s_l
#define _tprintf_p _wprintf_p
#define _tprintf_p_l _wprintf_p_l
#define _tcprintf _cwprintf
#define _tcprintf_l _cwprintf_l
#define _tcprintf_s _cwprintf_s
#define _tcprintf_s_l _cwprintf_s_l
#define _tcprintf_p _cwprintf_p
#define _tcprintf_p_l _cwprintf_p_l
#define _vtcprintf _vcwprintf
#define _vtcprintf_l _vcwprintf_l
#define _vtcprintf_s _vcwprintf_s
#define _vtcprintf_s_l _vcwprintf_s_l
#define _vtcprintf_p _vcwprintf_p
#define _vtcprintf_p_l _vcwprintf_p_l
#define _ftprintf fwprintf
#define _ftprintf_l _fwprintf_l
#define _ftprintf_s fwprintf_s
#define _ftprintf_s_l _fwprintf_s_l
#define _ftprintf_p _fwprintf_p
#define _ftprintf_p_l _fwprintf_p_l
#define _stprintf _swprintf
#define _stprintf_l __swprintf_l
#define _stprintf_s swprintf_s
#define _stprintf_s_l _swprintf_s_l
#define _stprintf_p _swprintf_p
#define _stprintf_p_l _swprintf_p_l
#define _sctprintf _scwprintf
#define _sctprintf_l _scwprintf_l
#define _sctprintf_p _scwprintf_p
#define _sctprintf_p_l _scwprintf_p_l
#define _sntprintf _snwprintf
#define _sntprintf_l _snwprintf_l
#define _sntprintf_s _snwprintf_s
#define _sntprintf_s_l _snwprintf_s_l
#define _vtprintf vwprintf
#define _vtprintf_l _vwprintf_l
#define _vtprintf_s vwprintf_s
#define _vtprintf_s_l _vwprintf_s_l
#define _vtprintf_p _vwprintf_p
#define _vtprintf_p_l _vwprintf_p_l
#define _vftprintf vfwprintf
#define _vftprintf_l _vfwprintf_l
#define _vftprintf_s vfwprintf_s
#define _vftprintf_s_l _vfwprintf_s_l
#define _vftprintf_p _vfwprintf_p
#define _vftprintf_p_l _vfwprintf_p_l
#define _vstprintf vswprintf
#define _vstprintf_l _vswprintf_l
#define _vstprintf_s vswprintf_s
#define _vstprintf_s_l _vswprintf_s_l
#define _vstprintf_p _vswprintf_p
#define _vstprintf_p_l _vswprintf_p_l
#define _vsctprintf _vscwprintf
#define _vsctprintf_l _vscwprintf_l
#define _vsctprintf_p _vscwprintf_p
#define _vsctprintf_p_l _vscwprintf_p_l
#define _vsntprintf _vsnwprintf
#define _vsntprintf_l _vsnwprintf_l
#define _vsntprintf_s _vsnwprintf_s
#define _vsntprintf_s_l _vsnwprintf_s_l
#define _tscanf wscanf
#define _tscanf_l _wscanf_l
#define _tscanf_s wscanf_s
#define _tscanf_s_l _wscanf_s_l
#define _tcscanf _cwscanf
#define _tcscanf_l _cwscanf_l
#define _tcscanf_s _cwscanf_s
#define _tcscanf_s_l _cwscanf_s_l
#define _ftscanf fwscanf
#define _ftscanf_l _fwscanf_l
#define _ftscanf_s fwscanf_s
#define _ftscanf_s_l _fwscanf_s_l
#define _stscanf swscanf
#define _stscanf_l _swscanf_l
#define _stscanf_s swscanf_s
#define _stscanf_s_l _swscanf_s_l
#define _sntscanf _snwscanf
#define _sntscanf_l _snwscanf_l
#define _sntscanf_s _snwscanf_s
#define _sntscanf_s_l _snwscanf_s_l
#define _vtscanf vwscanf
#define _vtscanf_s vwscanf_s
#define _vftscanf vfwscanf
#define _vftscanf_s vfwscanf_s
#define _vstscanf vswscanf
#define _vstscanf_s vswscanf_s
/* Unformatted i/o */
#define _fgettc fgetwc
#define _fgettc_nolock _fgetwc_nolock
#define _fgettchar _fgetwchar
#define _fgetts fgetws
#define _fputtc fputwc
#define _fputtc_nolock _fputwc_nolock
#define _fputtchar _fputwchar
#define _fputts fputws
#define _cputts _cputws
#define _cgetts _cgetws
#define _cgetts_s _cgetws_s
#define _gettc getwc
#define _gettc_nolock _getwc_nolock
#define _gettch _getwch
#define _gettch_nolock _getwch_nolock
#define _gettche _getwche
#define _gettche_nolock _getwche_nolock
#define _gettchar getwchar
#define _gettchar_nolock _getwchar_nolock
#define _getts _getws
#define _getts_s _getws_s
#define _puttc putwc
#define _puttc_nolock _putwc_nolock
#define _puttchar putwchar
#define _puttchar_nolock _putwchar_nolock
#define _puttch _putwch
#define _puttch_nolock _putwch_nolock
#define _putts _putws
#define _ungettc ungetwc
#define _ungettc_nolock _ungetwc_nolock
#define _ungettch _ungetwch
#define _ungettch_nolock _ungetwch_nolock
/* String conversion functions */
#define _tcstod wcstod
#define _tcstof wcstof
#define _tcstol wcstol
#define _tcstold wcstold
#define _tcstoll wcstoll
#define _tcstoul wcstoul
#define _tcstoull wcstoull
#define _tcstoimax wcstoimax
#define _tcstoumax wcstoumax
#define _tcstoi64 _wcstoi64
#define _tcstoui64 _wcstoui64
#define _ttof _wtof
#define _tstof _wtof
#define _tstol _wtol
#define _tstoll _wtoll
#define _tstoi _wtoi
#define _tstoi64 _wtoi64
#define _tcstod_l _wcstod_l
#define _tcstof_l _wcstof_l
#define _tcstol_l _wcstol_l
#define _tcstold_l _wcstold_l
#define _tcstoll_l _wcstoll_l
#define _tcstoul_l _wcstoul_l
#define _tcstoull_l _wcstoull_l
#define _tcstoi64_l _wcstoi64_l
#define _tcstoui64_l _wcstoui64_l
#define _tcstoimax_l _wcstoimax_l
#define _tcstoumax_l _wcstoumax_l
#define _tstof_l _wtof_l
#define _tstol_l _wtol_l
#define _tstoll_l _wtoll_l
#define _tstoi_l _wtoi_l
#define _tstoi64_l _wtoi64_l
#define _itot_s _itow_s
#define _ltot_s _ltow_s
#define _ultot_s _ultow_s
#define _itot _itow
#define _ltot _ltow
#define _ultot _ultow
#define _ttoi _wtoi
#define _ttol _wtol
#define _ttoll _wtoll
#define _ttoi64 _wtoi64
#define _i64tot_s _i64tow_s
#define _ui64tot_s _ui64tow_s
#define _i64tot _i64tow
#define _ui64tot _ui64tow
/* String functions */
#define _tcscat wcscat
#define _tcscat_s wcscat_s
#define _tcschr wcschr
#define _tcscpy wcscpy
#define _tcscpy_s wcscpy_s
#define _tcscspn wcscspn
#define _tcslen wcslen
#define _tcsnlen wcsnlen
#define _tcsncat wcsncat
#define _tcsncat_s wcsncat_s
#define _tcsncat_l _wcsncat_l
#define _tcsncat_s_l _wcsncat_s_l
#define _tcsncpy wcsncpy
#define _tcsncpy_s wcsncpy_s
#define _tcsncpy_l _wcsncpy_l
#define _tcsncpy_s_l _wcsncpy_s_l
#define _tcspbrk wcspbrk
#define _tcsrchr wcsrchr
#define _tcsspn wcsspn
#define _tcsstr wcsstr
#define _tcstok wcstok
#define _tcstok_s wcstok_s
#define _tcstok_l _wcstok_l
#define _tcstok_s_l _wcstok_s_l
#define _tcserror _wcserror
#define _tcserror_s _wcserror_s
#define __tcserror __wcserror
#define __tcserror_s __wcserror_s
#define _tcsdup _wcsdup
#define _tcsnset _wcsnset
#define _tcsnset_s _wcsnset_s
#define _tcsnset_l _wcsnset_l
#define _tcsnset_s_l _wcsnset_s_l
#define _tcsrev _wcsrev
#define _tcsset _wcsset
#define _tcsset_s _wcsset_s
#define _tcsset_l _wcsset_l
#define _tcsset_s_l _wcsset_s_l
#define _tcscmp wcscmp
#define _tcsicmp _wcsicmp
#define _tcsicmp_l _wcsicmp_l
#define _tcsnccmp wcsncmp
#define _tcsncmp wcsncmp
#define _tcsncicmp _wcsnicmp
#define _tcsncicmp_l _wcsnicmp_l
#define _tcsnicmp _wcsnicmp
#define _tcsnicmp_l _wcsnicmp_l
#define _tcscoll wcscoll
#define _tcscoll_l _wcscoll_l
#define _tcsicoll _wcsicoll
#define _tcsicoll_l _wcsicoll_l
#define _tcsnccoll _wcsncoll
#define _tcsnccoll_l _wcsncoll_l
#define _tcsncoll _wcsncoll
#define _tcsncoll_l _wcsncoll_l
#define _tcsncicoll _wcsnicoll
#define _tcsncicoll_l _wcsnicoll_l
#define _tcsnicoll _wcsnicoll
#define _tcsnicoll_l _wcsnicoll_l
#ifdef _DEBUG
#define _tcsdup_dbg _wcsdup_dbg
#endif /* _DEBUG */
/* Execute functions */
#define _texecl _wexecl
#define _texecle _wexecle
#define _texeclp _wexeclp
#define _texeclpe _wexeclpe
#define _texecv _wexecv
#define _texecve _wexecve
#define _texecvp _wexecvp
#define _texecvpe _wexecvpe
#define _tspawnl _wspawnl
#define _tspawnle _wspawnle
#define _tspawnlp _wspawnlp
#define _tspawnlpe _wspawnlpe
#define _tspawnv _wspawnv
#define _tspawnve _wspawnve
#define _tspawnvp _wspawnvp
#define _tspawnvp _wspawnvp
#define _tspawnvpe _wspawnvpe
#define _tsystem _wsystem
/* Time functions */
#define _tasctime _wasctime
#define _tctime _wctime
#define _tctime32 _wctime32
#define _tctime64 _wctime64
#define _tstrdate _wstrdate
#define _tstrtime _wstrtime
#define _tutime _wutime
#define _tutime32 _wutime32
#define _tutime64 _wutime64
#define _tcsftime wcsftime
#define _tcsftime_l _wcsftime_l
#define _tasctime_s _wasctime_s
#define _tctime_s _wctime_s
#define _tctime32_s _wctime32_s
#define _tctime64_s _wctime64_s
#define _tstrdate_s _wstrdate_s
#define _tstrtime_s _wstrtime_s
/* Directory functions */
#define _tchdir _wchdir
#define _tgetcwd _wgetcwd
#define _tgetdcwd _wgetdcwd
#define _tgetdcwd_nolock _wgetdcwd_nolock
#define _tmkdir _wmkdir
#define _trmdir _wrmdir
#ifdef _DEBUG
#define _tgetcwd_dbg _wgetcwd_dbg
#define _tgetdcwd_dbg _wgetdcwd_dbg
#define _tgetdcwd_lk_dbg _wgetdcwd_lk_dbg
#endif /* _DEBUG */
/* Environment/Path functions */
#define _tfullpath _wfullpath
#define _tgetenv _wgetenv
#define _tgetenv_s _wgetenv_s
#define _tdupenv_s _wdupenv_s
#define _tmakepath _wmakepath
#define _tmakepath_s _wmakepath_s
#define _tpgmptr _wpgmptr
#define _get_tpgmptr _get_wpgmptr
#define _tputenv _wputenv
#define _tputenv_s _wputenv_s
#define _tsearchenv _wsearchenv
#define _tsearchenv_s _wsearchenv_s
#define _tsplitpath _wsplitpath
#define _tsplitpath_s _wsplitpath_s
#ifdef _DEBUG
#define _tfullpath_dbg _wfullpath_dbg
#define _tdupenv_s_dbg _wdupenv_s_dbg
#endif /* _DEBUG */
/* Stdio functions */
#define _tfdopen _wfdopen
#define _tfsopen _wfsopen
#define _tfopen _wfopen
#define _tfopen_s _wfopen_s
#define _tfreopen _wfreopen
#define _tfreopen_s _wfreopen_s
#define _tperror _wperror
#define _tpopen _wpopen
#define _ttempnam _wtempnam
#define _ttmpnam _wtmpnam
#define _ttmpnam_s _wtmpnam_s
#ifdef _DEBUG
#define _ttempnam_dbg _wtempnam_dbg
#endif /* _DEBUG */
/* Io functions */
#define _taccess _waccess
#define _taccess_s _waccess_s
#define _tchmod _wchmod
#define _tcreat _wcreat
#define _tfindfirst _wfindfirst
#define _tfindfirst32 _wfindfirst32
#define _tfindfirst64 _wfindfirst64
#define _tfindfirsti64 _wfindfirsti64
#define _tfindfirst32i64 _wfindfirst32i64
#define _tfindfirst64i32 _wfindfirst64i32
#define _tfindnext _wfindnext
#define _tfindnext32 _wfindnext32
#define _tfindnext64 _wfindnext64
#define _tfindnexti64 _wfindnexti64
#define _tfindnext32i64 _wfindnext32i64
#define _tfindnext64i32 _wfindnext64i32
#define _tmktemp _wmktemp
#define _tmktemp_s _wmktemp_s
#define _topen _wopen
#define _tremove _wremove
#define _trename _wrename
#define _tsopen _wsopen
#define _tsopen_s _wsopen_s
#define _tunlink _wunlink
#define _tfinddata_t _wfinddata_t
#define _tfinddata32_t _wfinddata32_t
#define _tfinddata64_t _wfinddata64_t
#define _tfinddatai64_t _wfinddatai64_t
#define _tfinddata32i64_t _wfinddata32i64_t
#define _tfinddata64i32_t _wfinddata64i32_t
/* Stat functions */
#define _tstat _wstat
#define _tstat32 _wstat32
#define _tstat32i64 _wstat32i64
#define _tstat64 _wstat64
#define _tstat64i32 _wstat64i32
#define _tstati64 _wstati64
/* Setlocale functions */
#define _tsetlocale _wsetlocale
/* Redundant "logical-character" mappings */
#define _tcsclen wcslen
#define _tcscnlen wcsnlen
#define _tcsclen_l(_String, _Locale) wcslen(_String)
#define _tcscnlen_l(_String, _Max_count, _Locale) wcsnlen((_String), (_Max_count))
#define _tcsnccat wcsncat
#define _tcsnccat_s wcsncat_s
#define _tcsnccat_l _wcsncat_l
#define _tcsnccat_s_l _wcsncat_s_l
#define _tcsnccpy wcsncpy
#define _tcsnccpy_s wcsncpy_s
#define _tcsnccpy_l _wcsncpy_l
#define _tcsnccpy_s_l _wcsncpy_s_l
#define _tcsncset _wcsnset
#define _tcsncset_s _wcsnset_s
#define _tcsncset_l _wcsnset_l
#define _tcsncset_s_l _wcsnset_s_l
#define _tcsdec _wcsdec
#define _tcsinc _wcsinc
#define _tcsnbcnt _wcsncnt
#define _tcsnccnt _wcsncnt
#define _tcsnextc _wcsnextc
#define _tcsninc _wcsninc
#define _tcsspnp _wcsspnp
#define _tcslwr _wcslwr
#define _tcslwr_l _wcslwr_l
#define _tcslwr_s _wcslwr_s
#define _tcslwr_s_l _wcslwr_s_l
#define _tcsupr _wcsupr
#define _tcsupr_l _wcsupr_l
#define _tcsupr_s _wcsupr_s
#define _tcsupr_s_l _wcsupr_s_l
#define _tcsxfrm wcsxfrm
#define _tcsxfrm_l _wcsxfrm_l
#if __STDC__ || defined (_NO_INLINING)
#define _tclen(_pc) (1)
#define _tccpy(_pc1,_cpc2) ((*(_pc1) = *(_cpc2)))
#define _tccpy_l(_pc1,_cpc2,_locale) _tccpy((_pc1),(_cpc2))
#define _tccmp(_cpc1,_cpc2) ((*(_cpc1))-(*(_cpc2)))
#else /* __STDC__ || defined (_NO_INLINING) */
_Check_return_ __inline size_t __CRTDECL _tclen(_In_z_ const wchar_t *_Cpc)
{
/* avoid compiler warning */
(void *)_Cpc;
return 1;
}
__inline void __CRTDECL _tccpy(_Out_ wchar_t *_Pc1, _In_z_ const wchar_t *_Cpc2) { *_Pc1 = (wchar_t)*_Cpc2; }
__inline void __CRTDECL _tccpy_l(_Out_ wchar_t *_Pc1, _In_z_ const wchar_t *_Cpc2, _In_opt_ _locale_t _Locale)
{
_CRT_UNUSED(_Locale);
#pragma warning( push )
#pragma warning( disable : 28719 )
_tccpy(_Pc1, _Cpc2);
#pragma warning( pop )
}
_Check_return_ __inline int __CRTDECL _tccmp(_In_z_ const wchar_t *_Cpc1, _In_z_ const wchar_t *_Cpc2) { return (int) ((*_Cpc1)-(*_Cpc2)); }
#endif /* __STDC__ || defined (_NO_INLINING) */
/* ctype functions */
#define _istalnum iswalnum
#define _istalnum_l _iswalnum_l
#define _istalpha iswalpha
#define _istalpha_l _iswalpha_l
#define _istascii iswascii
#define _istcntrl iswcntrl
#define _istcntrl_l _iswcntrl_l
#define _istdigit iswdigit
#define _istdigit_l _iswdigit_l
#define _istgraph iswgraph
#define _istgraph_l _iswgraph_l
#define _istlower iswlower
#define _istlower_l _iswlower_l
#define _istprint iswprint
#define _istprint_l _iswprint_l
#define _istpunct iswpunct
#define _istpunct_l _iswpunct_l
#define _istblank iswblank
#define _istblank_l _iswblank_l
#define _istspace iswspace
#define _istspace_l _iswspace_l
#define _istupper iswupper
#define _istupper_l _iswupper_l
#define _istxdigit iswxdigit
#define _istxdigit_l _iswxdigit_l
#define _totupper towupper
#define _totupper_l _towupper_l
#define _totlower towlower
#define _totlower_l _towlower_l
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原文地址：http://www.cnblogs.com/lixiangblog/p/4528825.html
