include/wx/wxcrt.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/wxcrt.h
   3 // Purpose:     Type-safe ANSI and Unicode builds compatible wrappers for
   4 //              CRT functions
   5 // Author:      Joel Farley, Ove Kaaven
   6 // Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee, Vaclav Slavik
   7 // Created:     1998/06/12
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998-2006 wxWidgets dev team
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_WXCRT_H_
  14 #define _WX_WXCRT_H_
  15
  16 // NB: User code should include wx/crt.h instead of including this
  17 //     header directly.
  18
  19 #include "wx/wxcrtbase.h"
  20 #include "wx/string.h"
  21
  22 #ifndef __WX_SETUP_H__
  23 // For non-configure builds assume vsscanf is available, if not Visual C or DMC
  24 #if !defined (__VISUALC__) && !defined (__DMC__)
  25     #define HAVE_VSSCANF 1
  26 #endif
  27 #endif
  28
  29 // ============================================================================
  30 //                              misc functions
  31 // ============================================================================
  32
  33 /* checks whether the passed in pointer is NULL and if the string is empty */
  34 inline bool wxIsEmpty(const char *s) { return !s || !*s; }
  35 inline bool wxIsEmpty(const wchar_t *s) { return !s || !*s; }
  36 inline bool wxIsEmpty(const wxCharBuffer& s) { return wxIsEmpty(s.data()); }
  37 inline bool wxIsEmpty(const wxWCharBuffer& s) { return wxIsEmpty(s.data()); }
  38 inline bool wxIsEmpty(const wxString& s) { return s.empty(); }
  39 inline bool wxIsEmpty(const wxCStrData& s) { return s.AsString().empty(); }
  40
  41
  42
  43 /* multibyte to wide char conversion functions and macros */
  44
  45 #if wxUSE_WCHAR_T
  46     /* multibyte<->widechar conversion */
  47     WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n);
  48     WXDLLIMPEXP_BASE size_t wxWC2MB(char *buf, const wchar_t *psz, size_t n);
  49
  50     #if wxUSE_UNICODE
  51         #define wxMB2WX wxMB2WC
  52         #define wxWX2MB wxWC2MB
  53         #define wxWC2WX wxStrncpy
  54         #define wxWX2WC wxStrncpy
  55     #else
  56         #define wxMB2WX wxStrncpy
  57         #define wxWX2MB wxStrncpy
  58         #define wxWC2WX wxWC2MB
  59         #define wxWX2WC wxMB2WC
  60     #endif
  61 #else /* !wxUSE_UNICODE */
  62     /* No wxUSE_WCHAR_T: we have to do something (JACS) */
  63     #define wxMB2WC wxStrncpy
  64     #define wxWC2MB wxStrncpy
  65     #define wxMB2WX wxStrncpy
  66     #define wxWX2MB wxStrncpy
  67     #define wxWC2WX wxWC2MB
  68     #define wxWX2WC wxMB2WC
  69 #endif
  70
  71
  72 //  RN: We could do the usual tricky compiler detection here,
  73 //  and use their variant (such as wmemchr, etc.).  The problem
  74 //  is that these functions are quite rare, even though they are
  75 //  part of the current POSIX standard.  In addition, most compilers
  76 //  (including even MSC) inline them just like we do right in their
  77 //  headers.
  78 //
  79 #include <string.h>
  80
  81 #if wxUSE_UNICODE
  82     //implement our own wmem variants
  83     inline wxChar* wxTmemchr(const wxChar* s, wxChar c, size_t l)
  84     {
  85         for(;l && *s != c;--l, ++s) {}
  86
  87         if(l)
  88             return (wxChar*)s;
  89         return NULL;
  90     }
  91
  92     inline int wxTmemcmp(const wxChar* sz1, const wxChar* sz2, size_t len)
  93     {
  94         for(; *sz1 == *sz2 && len; --len, ++sz1, ++sz2) {}
  95
  96         if(len)
  97             return *sz1 < *sz2 ? -1 : *sz1 > *sz2;
  98         else
  99             return 0;
 100     }
 101
 102     inline wxChar* wxTmemcpy(wxChar* szOut, const wxChar* szIn, size_t len)
 103     {
 104         return (wxChar*) memcpy(szOut, szIn, len * sizeof(wxChar));
 105     }
 106
 107     inline wxChar* wxTmemmove(wxChar* szOut, const wxChar* szIn, size_t len)
 108     {
 109         return (wxChar*) memmove(szOut, szIn, len * sizeof(wxChar));
 110     }
 111
 112     inline wxChar* wxTmemset(wxChar* szOut, const wxChar cIn, size_t len)
 113     {
 114         wxChar* szRet = szOut;
 115
 116         while (len--)
 117             *szOut++ = cIn;
 118
 119         return szRet;
 120     }
 121 #endif /* wxUSE_UNICODE */
 122
 123 // provide trivial wrappers for char* versions for both ANSI and Unicode builds
 124 // (notice that these intentionally return "char *" and not "void *" unlike the
 125 // standard memxxx() for symmetry with the wide char versions):
 126 inline char* wxTmemchr(const char* s, char c, size_t len)
 127     { return (char*)memchr(s, c, len); }
 128 inline int wxTmemcmp(const char* sz1, const char* sz2, size_t len)
 129     { return memcmp(sz1, sz2, len); }
 130 inline char* wxTmemcpy(char* szOut, const char* szIn, size_t len)
 131     { return (char*)memcpy(szOut, szIn, len); }
 132 inline char* wxTmemmove(char* szOut, const char* szIn, size_t len)
 133     { return (char*)memmove(szOut, szIn, len); }
 134 inline char* wxTmemset(char* szOut, const char cIn, size_t len)
 135     { return (char*)memset(szOut, cIn, len); }
 136
 137
 138 // ============================================================================
 139 //     wx wrappers for CRT functions in both char* and wchar_t* versions
 140 // ============================================================================
 141
 142 // A few notes on implementation of these wrappers:
 143 //
 144 // We need both char* and wchar_t* versions of functions like wxStrlen() for
 145 // compatibility with both ANSI and Unicode builds.
 146 //
 147 // This makes passing wxString or c_str()/mb_str()/wc_str() result to them
 148 // ambiguous, so we need to provide overrides for that as well (in cases where
 149 // it makes sense).
 150 //
 151 // We can do this without problems for some functions (wxStrlen()), but in some
 152 // cases, we can't stay compatible with both ANSI and Unicode builds, e.g. for
 153 // wxStrcpy(const wxString&), which can only return either char* or wchar_t*.
 154 // In these cases, we preserve ANSI build compatibility by returning char*.
 155
 156 // ----------------------------------------------------------------------------
 157 //                              locale functions
 158 // ----------------------------------------------------------------------------
 159
 160 // NB: we can't provide const wchar_t* (= wxChar*) overload, because calling
 161 //     wxSetlocale(category, NULL) -- which is a common thing to do -- would be
 162 //     ambiguous
 163 WXDLLIMPEXP_BASE char* wxSetlocale(int category, const char *locale);
 164 inline char* wxSetlocale(int category, const wxCharBuffer& locale)
 165     { return wxSetlocale(category, locale.data()); }
 166 inline char* wxSetlocale(int category, const wxString& locale)
 167     { return wxSetlocale(category, locale.mb_str()); }
 168 inline char* wxSetlocale(int category, const wxCStrData& locale)
 169     { return wxSetlocale(category, locale.AsCharBuf()); }
 170
 171 // ----------------------------------------------------------------------------
 172 //                              string functions
 173 // ----------------------------------------------------------------------------
 174
 175 /* safe version of strlen() (returns 0 if passed NULL pointer) */
 176 // NB: these are defined in wxcrtbase.h, see the comment there
 177 // inline size_t wxStrlen(const char *s) { return s ? strlen(s) : 0; }
 178 // inline size_t wxStrlen(const wchar_t *s) { return s ? wxCRT_Strlen_(s) : 0; }
 179 inline size_t wxStrlen(const wxCharBuffer& s) { return wxStrlen(s.data()); }
 180 inline size_t wxStrlen(const wxWCharBuffer& s) { return wxStrlen(s.data()); }
 181 inline size_t wxStrlen(const wxString& s) { return s.length(); }
 182 inline size_t wxStrlen(const wxCStrData& s) { return s.AsString().length(); }
 183
 184 // NB: these are defined in wxcrtbase.h, see the comment there
 185 // inline char* wxStrdup(const char *s) { return wxStrdupA(s); }
 186 // inline wchar_t* wxStrdup(const wchar_t *s) { return wxStrdupW(s); }
 187 inline char* wxStrdup(const wxCharBuffer& s) { return wxStrdup(s.data()); }
 188 inline wchar_t* wxStrdup(const wxWCharBuffer& s) { return wxStrdup(s.data()); }
 189 inline char* wxStrdup(const wxString& s) { return wxStrdup(s.mb_str()); }
 190 inline char* wxStrdup(const wxCStrData& s) { return wxStrdup(s.AsCharBuf()); }
 191
 192 inline char *wxStrcpy(char *dest, const char *src)
 193     { return wxCRT_StrcpyA(dest, src); }
 194 inline wchar_t *wxStrcpy(wchar_t *dest, const wchar_t *src)
 195     { return wxCRT_StrcpyW(dest, src); }
 196 inline char *wxStrcpy(char *dest, const wxString& src)
 197     { return wxCRT_StrcpyA(dest, src.mb_str()); }
 198 inline char *wxStrcpy(char *dest, const wxCStrData& src)
 199     { return wxCRT_StrcpyA(dest, src.AsCharBuf()); }
 200 inline char *wxStrcpy(char *dest, const wxCharBuffer& src)
 201     { return wxCRT_StrcpyA(dest, src.data()); }
 202 inline wchar_t *wxStrcpy(wchar_t *dest, const wxString& src)
 203     { return wxCRT_StrcpyW(dest, src.wc_str()); }
 204 inline wchar_t *wxStrcpy(wchar_t *dest, const wxCStrData& src)
 205     { return wxCRT_StrcpyW(dest, src.AsWCharBuf()); }
 206 inline wchar_t *wxStrcpy(wchar_t *dest, const wxWCharBuffer& src)
 207     { return wxCRT_StrcpyW(dest, src.data()); }
 208 inline char *wxStrcpy(char *dest, const wchar_t *src)
 209     { return wxCRT_StrcpyA(dest, wxConvLibc.cWC2MB(src)); }
 210 inline wchar_t *wxStrcpy(wchar_t *dest, const char *src)
 211     { return wxCRT_StrcpyW(dest, wxConvLibc.cMB2WC(src)); }
 212
 213 inline char *wxStrncpy(char *dest, const char *src, size_t n)
 214     { return wxCRT_StrncpyA(dest, src, n); }
 215 inline wchar_t *wxStrncpy(wchar_t *dest, const wchar_t *src, size_t n)
 216     { return wxCRT_StrncpyW(dest, src, n); }
 217 inline char *wxStrncpy(char *dest, const wxString& src, size_t n)
 218     { return wxCRT_StrncpyA(dest, src.mb_str(), n); }
 219 inline char *wxStrncpy(char *dest, const wxCStrData& src, size_t n)
 220     { return wxCRT_StrncpyA(dest, src.AsCharBuf(), n); }
 221 inline char *wxStrncpy(char *dest, const wxCharBuffer& src, size_t n)
 222     { return wxCRT_StrncpyA(dest, src.data(), n); }
 223 inline wchar_t *wxStrncpy(wchar_t *dest, const wxString& src, size_t n)
 224     { return wxCRT_StrncpyW(dest, src.wc_str(), n); }
 225 inline wchar_t *wxStrncpy(wchar_t *dest, const wxCStrData& src, size_t n)
 226     { return wxCRT_StrncpyW(dest, src.AsWCharBuf(), n); }
 227 inline wchar_t *wxStrncpy(wchar_t *dest, const wxWCharBuffer& src, size_t n)
 228     { return wxCRT_StrncpyW(dest, src.data(), n); }
 229 inline char *wxStrncpy(char *dest, const wchar_t *src, size_t n)
 230     { return wxCRT_StrncpyA(dest, wxConvLibc.cWC2MB(src), n); }
 231 inline wchar_t *wxStrncpy(wchar_t *dest, const char *src, size_t n)
 232     { return wxCRT_StrncpyW(dest, wxConvLibc.cMB2WC(src), n); }
 233
 234 inline char *wxStrcat(char *dest, const char *src)
 235     { return wxCRT_StrcatA(dest, src); }
 236 inline wchar_t *wxStrcat(wchar_t *dest, const wchar_t *src)
 237     { return wxCRT_StrcatW(dest, src); }
 238 inline char *wxStrcat(char *dest, const wxString& src)
 239     { return wxCRT_StrcatA(dest, src.mb_str()); }
 240 inline char *wxStrcat(char *dest, const wxCStrData& src)
 241     { return wxCRT_StrcatA(dest, src.AsCharBuf()); }
 242 inline char *wxStrcat(char *dest, const wxCharBuffer& src)
 243     { return wxCRT_StrcatA(dest, src.data()); }
 244 inline wchar_t *wxStrcat(wchar_t *dest, const wxString& src)
 245     { return wxCRT_StrcatW(dest, src.wc_str()); }
 246 inline wchar_t *wxStrcat(wchar_t *dest, const wxCStrData& src)
 247     { return wxCRT_StrcatW(dest, src.AsWCharBuf()); }
 248 inline wchar_t *wxStrcat(wchar_t *dest, const wxWCharBuffer& src)
 249     { return wxCRT_StrcatW(dest, src.data()); }
 250 inline char *wxStrcat(char *dest, const wchar_t *src)
 251     { return wxCRT_StrcatA(dest, wxConvLibc.cWC2MB(src)); }
 252 inline wchar_t *wxStrcat(wchar_t *dest, const char *src)
 253     { return wxCRT_StrcatW(dest, wxConvLibc.cMB2WC(src)); }
 254
 255 inline char *wxStrncat(char *dest, const char *src, size_t n)
 256     { return wxCRT_StrncatA(dest, src, n); }
 257 inline wchar_t *wxStrncat(wchar_t *dest, const wchar_t *src, size_t n)
 258     { return wxCRT_StrncatW(dest, src, n); }
 259 inline char *wxStrncat(char *dest, const wxString& src, size_t n)
 260     { return wxCRT_StrncatA(dest, src.mb_str(), n); }
 261 inline char *wxStrncat(char *dest, const wxCStrData& src, size_t n)
 262     { return wxCRT_StrncatA(dest, src.AsCharBuf(), n); }
 263 inline char *wxStrncat(char *dest, const wxCharBuffer& src, size_t n)
 264     { return wxCRT_StrncatA(dest, src.data(), n); }
 265 inline wchar_t *wxStrncat(wchar_t *dest, const wxString& src, size_t n)
 266     { return wxCRT_StrncatW(dest, src.wc_str(), n); }
 267 inline wchar_t *wxStrncat(wchar_t *dest, const wxCStrData& src, size_t n)
 268     { return wxCRT_StrncatW(dest, src.AsWCharBuf(), n); }
 269 inline wchar_t *wxStrncat(wchar_t *dest, const wxWCharBuffer& src, size_t n)
 270     { return wxCRT_StrncatW(dest, src.data(), n); }
 271 inline char *wxStrncat(char *dest, const wchar_t *src, size_t n)
 272     { return wxCRT_StrncatA(dest, wxConvLibc.cWC2MB(src), n); }
 273 inline wchar_t *wxStrncat(wchar_t *dest, const char *src, size_t n)
 274     { return wxCRT_StrncatW(dest, wxConvLibc.cMB2WC(src), n); }
 275
 276
 277 #define WX_STR_DECL(name, T1, T2)  name(T1 s1, T2 s2)
 278 #define WX_STR_CALL(func, a1, a2)  func(a1, a2)
 279
 280 // This macro defines string function for all possible variants of arguments,
 281 // except for those taking wxString or wxCStrData as second argument.
 282 // Parameters:
 283 //   rettype   - return type
 284 //   name      - name of the (overloaded) function to define
 285 //   crtA      - function to call for char* versions (takes two arguments)
 286 //   crtW      - ditto for wchar_t* function
 287 //   forString - function to call when the *first* argument is wxString;
 288 //               the second argument can be any string type, so this is
 289 //               typically a template
 290 #define WX_STR_FUNC_NO_INVERT(rettype, name, crtA, crtW, forString)           \
 291     inline rettype WX_STR_DECL(name, const char *, const char *)              \
 292         { return WX_STR_CALL(crtA, s1, s2); }                                 \
 293     inline rettype WX_STR_DECL(name, const char *, const wchar_t *)           \
 294         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 295     inline rettype WX_STR_DECL(name, const char *, const wxCharBuffer&)       \
 296         { return WX_STR_CALL(crtA, s1, s2.data()); }                          \
 297     inline rettype WX_STR_DECL(name, const char *, const wxWCharBuffer&)      \
 298         { return WX_STR_CALL(forString, wxString(s1), s2.data()); }           \
 299                                                                               \
 300     inline rettype WX_STR_DECL(name, const wchar_t *, const wchar_t *)        \
 301         { return WX_STR_CALL(crtW, s1, s2); }                                 \
 302     inline rettype WX_STR_DECL(name, const wchar_t *, const char *)           \
 303         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 304     inline rettype WX_STR_DECL(name, const wchar_t *, const wxWCharBuffer&)   \
 305         { return WX_STR_CALL(crtW, s1, s2.data()); }                          \
 306     inline rettype WX_STR_DECL(name, const wchar_t *, const wxCharBuffer&)    \
 307         { return WX_STR_CALL(forString, wxString(s1), s2.data()); }           \
 308                                                                               \
 309     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const char *)       \
 310         { return WX_STR_CALL(crtA, s1.data(), s2); }                          \
 311     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const wchar_t *)    \
 312         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 313     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const wxCharBuffer&)\
 314         { return WX_STR_CALL(crtA, s1.data(), s2.data()); }                   \
 315     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const wxWCharBuffer&)   \
 316         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 317                                                                               \
 318     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const wchar_t *)   \
 319         { return WX_STR_CALL(crtW, s1.data(), s2); }                          \
 320     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const char *)      \
 321         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 322     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const wxWCharBuffer&)  \
 323         { return WX_STR_CALL(crtW, s1.data(), s2.data()); }                   \
 324     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const wxCharBuffer&)   \
 325         { return WX_STR_CALL(forString, wxString(s1), wxString(s2)); }        \
 326                                                                               \
 327     inline rettype WX_STR_DECL(name, const wxString&, const char*)            \
 328         { return WX_STR_CALL(forString, s1, s2); }                            \
 329     inline rettype WX_STR_DECL(name, const wxString&, const wchar_t*)         \
 330         { return WX_STR_CALL(forString, s1, s2); }                            \
 331     inline rettype WX_STR_DECL(name, const wxString&, const wxCharBuffer&)    \
 332         { return WX_STR_CALL(forString, s1, s2); }                            \
 333     inline rettype WX_STR_DECL(name, const wxString&, const wxWCharBuffer&)   \
 334         { return WX_STR_CALL(forString, s1, s2); }                            \
 335     inline rettype WX_STR_DECL(name, const wxString&, const wxString&)        \
 336         { return WX_STR_CALL(forString, s1, s2); }                            \
 337     inline rettype WX_STR_DECL(name, const wxString&, const wxCStrData&)      \
 338         { return WX_STR_CALL(forString, s1, s2); }                            \
 339                                                                               \
 340     inline rettype WX_STR_DECL(name, const wxCStrData&, const char*)          \
 341         { return WX_STR_CALL(forString, s1.AsString(), s2); }                 \
 342     inline rettype WX_STR_DECL(name, const wxCStrData&, const wchar_t*)       \
 343         { return WX_STR_CALL(forString, s1.AsString(), s2); }                 \
 344     inline rettype WX_STR_DECL(name, const wxCStrData&, const wxCharBuffer&)  \
 345         { return WX_STR_CALL(forString, s1.AsString(), s2); }                 \
 346     inline rettype WX_STR_DECL(name, const wxCStrData&, const wxWCharBuffer&) \
 347         { return WX_STR_CALL(forString, s1.AsString(), s2); }                 \
 348     inline rettype WX_STR_DECL(name, const wxCStrData&, const wxString&)      \
 349         { return WX_STR_CALL(forString, s1.AsString(), s2); }                 \
 350     inline rettype WX_STR_DECL(name, const wxCStrData&, const wxCStrData&)    \
 351         { return WX_STR_CALL(forString, s1.AsString(), s2); }
 352
 353 // This defines strcmp-like function, i.e. one returning the result of
 354 // comparison; see WX_STR_FUNC_NO_INVERT for explanation of the arguments
 355 #define WX_STRCMP_FUNC(name, crtA, crtW, forString)                           \
 356     WX_STR_FUNC_NO_INVERT(int, name, crtA, crtW, forString)                   \
 357                                                                               \
 358     inline int WX_STR_DECL(name, const char *, const wxCStrData&)             \
 359         { return -WX_STR_CALL(forString, s2.AsString(), s1); }                \
 360     inline int WX_STR_DECL(name, const char *, const wxString&)               \
 361         { return -WX_STR_CALL(forString, s2, s1); }                           \
 362                                                                               \
 363     inline int WX_STR_DECL(name, const wchar_t *, const wxCStrData&)          \
 364         { return -WX_STR_CALL(forString, s2.AsString(), s1); }                \
 365     inline int WX_STR_DECL(name, const wchar_t *, const wxString&)            \
 366         { return -WX_STR_CALL(forString, s2, s1); }                           \
 367                                                                               \
 368     inline int WX_STR_DECL(name, const wxCharBuffer&, const wxCStrData&)      \
 369         { return -WX_STR_CALL(forString, s2.AsString(), s1.data()); }         \
 370     inline int WX_STR_DECL(name, const wxCharBuffer&, const wxString&)        \
 371         { return -WX_STR_CALL(forString, s2, s1.data()); }                    \
 372                                                                               \
 373     inline int WX_STR_DECL(name, const wxWCharBuffer&, const wxCStrData&)     \
 374         { return -WX_STR_CALL(forString, s2.AsString(), s1.data()); }         \
 375     inline int WX_STR_DECL(name, const wxWCharBuffer&, const wxString&)       \
 376         { return -WX_STR_CALL(forString, s2, s1.data()); }
 377
 378
 379 // This defines a string function that is *not* strcmp-like, i.e. doesn't
 380 // return the result of comparison and so if the second argument is a string,
 381 // it has to be converted to char* or wchar_t*
 382 #define WX_STR_FUNC(rettype, name, crtA, crtW, forString)                     \
 383     WX_STR_FUNC_NO_INVERT(rettype, name, crtA, crtW, forString)               \
 384                                                                               \
 385     inline rettype WX_STR_DECL(name, const char *, const wxCStrData&)         \
 386         { return WX_STR_CALL(crtA, s1, s2.AsCharBuf()); }                     \
 387     inline rettype WX_STR_DECL(name, const char *, const wxString&)           \
 388         { return WX_STR_CALL(crtA, s1, s2.mb_str()); }                        \
 389                                                                               \
 390     inline rettype WX_STR_DECL(name, const wchar_t *, const wxCStrData&)      \
 391         { return WX_STR_CALL(crtW, s1, s2.AsWCharBuf()); }                    \
 392     inline rettype WX_STR_DECL(name, const wchar_t *, const wxString&)        \
 393         { return WX_STR_CALL(crtW, s1, s2.wc_str()); }                        \
 394                                                                               \
 395     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const wxCStrData&)  \
 396         { return WX_STR_CALL(crtA, s1.data(), s2.AsCharBuf()); }              \
 397     inline rettype WX_STR_DECL(name, const wxCharBuffer&, const wxString&)    \
 398         { return WX_STR_CALL(crtA, s1.data(), s2.mb_str()); }                 \
 399                                                                               \
 400     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const wxCStrData&) \
 401         { return WX_STR_CALL(crtW, s1.data(), s2.AsWCharBuf()); }             \
 402     inline rettype WX_STR_DECL(name, const wxWCharBuffer&, const wxString&)   \
 403         { return WX_STR_CALL(crtW, s1.data(), s2.wc_str()); }
 404
 405 template<typename T>
 406 inline int wxStrcmp_String(const wxString& s1, const T& s2)
 407     { return s1.compare(s2); }
 408 WX_STRCMP_FUNC(wxStrcmp, wxCRT_StrcmpA, wxCRT_StrcmpW, wxStrcmp_String)
 409
 410 template<typename T>
 411 inline int wxStricmp_String(const wxString& s1, const T& s2)
 412     { return s1.CmpNoCase(s2); }
 413 WX_STRCMP_FUNC(wxStricmp, wxCRT_StricmpA, wxCRT_StricmpW, wxStricmp_String)
 414
 415 #if defined(wxCRT_StrcollA) && defined(wxCRT_StrcollW)
 416
 417 // GCC 3.3 and other compilers have a bug that causes it to fail compilation if
 418 // the template's implementation uses overloaded function declared later (see
 419 // the wxStrcoll() call in wxStrcoll_String<T>()), so we have to
 420 // forward-declare the template and implement it below WX_STRCMP_FUNC. OTOH,
 421 // this fails to compile with VC6, so don't do it for VC. It also causes
 422 // problems with GCC visibility in newer GCC versions.
 423 #if !(defined(__VISUALC__) || wxCHECK_GCC_VERSION(3,4))
 424 template<typename T>
 425 inline int wxStrcoll_String(const wxString& s1, const T& s2);
 426 WX_STRCMP_FUNC(wxStrcoll, wxCRT_StrcollA, wxCRT_StrcollW, wxStrcoll_String)
 427 #endif // !__VISUALC__
 428
 429 template<typename T>
 430 inline int wxStrcoll_String(const wxString& s1, const T& s2)
 431 {
 432 #if wxUSE_UNICODE
 433     // NB: strcoll() doesn't work correctly on UTF-8 strings, so we have to use
 434     //     wc_str() even if wxUSE_UNICODE_UTF8; the (const wchar_t*) cast is
 435     //     there just as optimization to avoid going through
 436     //     wxStrcoll<wxWCharBuffer>:
 437     return wxStrcoll((const wchar_t*)s1.wc_str(), s2);
 438 #else
 439     return wxStrcoll((const char*)s1.mb_str(), s2);
 440 #endif
 441 }
 442
 443 #if defined(__VISUALC__) || wxCHECK_GCC_VERSION(3,4)
 444 // this is exactly the same WX_STRCMP_FUNC line as above wxStrcoll_String<>
 445 WX_STRCMP_FUNC(wxStrcoll, wxCRT_StrcollA, wxCRT_StrcollW, wxStrcoll_String)
 446 #endif
 447
 448 #endif // defined(wxCRT_Strcoll[AW])
 449
 450 template<typename T>
 451 inline size_t wxStrspn_String(const wxString& s1, const T& s2)
 452 {
 453     size_t pos = s1.find_first_not_of(s2);
 454     return pos == wxString::npos ? s1.length() : pos;
 455 }
 456 WX_STR_FUNC(size_t, wxStrspn, wxCRT_StrspnA, wxCRT_StrspnW, wxStrspn_String)
 457
 458 template<typename T>
 459 inline size_t wxStrcspn_String(const wxString& s1, const T& s2)
 460 {
 461     size_t pos = s1.find_first_of(s2);
 462     return pos == wxString::npos ? s1.length() : pos;
 463 }
 464 WX_STR_FUNC(size_t, wxStrcspn, wxCRT_StrcspnA, wxCRT_StrcspnW, wxStrcspn_String)
 465
 466 #undef WX_STR_DECL
 467 #undef WX_STR_CALL
 468 #define WX_STR_DECL(name, T1, T2)  name(T1 s1, T2 s2, size_t n)
 469 #define WX_STR_CALL(func, a1, a2)  func(a1, a2, n)
 470
 471 template<typename T>
 472 inline int wxStrncmp_String(const wxString& s1, const T& s2, size_t n)
 473     { return s1.compare(0, n, s2, 0, n); }
 474 WX_STRCMP_FUNC(wxStrncmp, wxCRT_StrncmpA, wxCRT_StrncmpW, wxStrncmp_String)
 475
 476 template<typename T>
 477 inline int wxStrnicmp_String(const wxString& s1, const T& s2, size_t n)
 478     { return s1.substr(0, n).CmpNoCase(wxString(s2).substr(0, n)); }
 479 WX_STRCMP_FUNC(wxStrnicmp, wxCRT_StrnicmpA, wxCRT_StrnicmpW, wxStrnicmp_String)
 480
 481 #undef WX_STR_DECL
 482 #undef WX_STR_CALL
 483 #undef WX_STRCMP_FUNC
 484 #undef WX_STR_FUNC
 485 #undef WX_STR_FUNC_NO_INVERT
 486
 487 #if defined(wxCRT_StrxfrmA) && defined(wxCRT_StrxfrmW)
 488
 489 inline size_t wxStrxfrm(char *dest, const char *src, size_t n)
 490     { return wxCRT_StrxfrmA(dest, src, n); }
 491 inline size_t wxStrxfrm(wchar_t *dest, const wchar_t *src, size_t n)
 492     { return wxCRT_StrxfrmW(dest, src, n); }
 493 template<typename T>
 494 inline size_t wxStrxfrm(T *dest, const wxCharTypeBuffer<T>& src, size_t n)
 495     { return wxStrxfrm(dest, src.data(), n); }
 496 inline size_t wxStrxfrm(char *dest, const wxString& src, size_t n)
 497     { return wxCRT_StrxfrmA(dest, src.mb_str(), n); }
 498 inline size_t wxStrxfrm(wchar_t *dest, const wxString& src, size_t n)
 499     { return wxCRT_StrxfrmW(dest, src.wc_str(), n); }
 500 inline size_t wxStrxfrm(char *dest, const wxCStrData& src, size_t n)
 501     { return wxCRT_StrxfrmA(dest, src.AsCharBuf(), n); }
 502 inline size_t wxStrxfrm(wchar_t *dest, const wxCStrData& src, size_t n)
 503     { return wxCRT_StrxfrmW(dest, src.AsWCharBuf(), n); }
 504
 505 #endif // defined(wxCRT_Strxfrm[AW])
 506
 507 inline char *wxStrtok(char *str, const char *delim, char **saveptr)
 508     { return wxCRT_StrtokA(str, delim, saveptr); }
 509 inline wchar_t *wxStrtok(wchar_t *str, const wchar_t *delim, wchar_t **saveptr)
 510     { return wxCRT_StrtokW(str, delim, saveptr); }
 511 template<typename T>
 512 inline T *wxStrtok(T *str, const wxCharTypeBuffer<T>& delim, T **saveptr)
 513     { return wxStrtok(str, delim.data(), saveptr); }
 514 inline char *wxStrtok(char *str, const wxCStrData& delim, char **saveptr)
 515     { return wxCRT_StrtokA(str, delim.AsCharBuf(), saveptr); }
 516 inline wchar_t *wxStrtok(wchar_t *str, const wxCStrData& delim, wchar_t **saveptr)
 517     { return wxCRT_StrtokW(str, delim.AsWCharBuf(), saveptr); }
 518 inline char *wxStrtok(char *str, const wxString& delim, char **saveptr)
 519     { return wxCRT_StrtokA(str, delim.mb_str(), saveptr); }
 520 inline wchar_t *wxStrtok(wchar_t *str, const wxString& delim, wchar_t **saveptr)
 521     { return wxCRT_StrtokW(str, delim.wc_str(), saveptr); }
 522
 523 inline const char *wxStrstr(const char *haystack, const char *needle)
 524     { return wxCRT_StrstrA(haystack, needle); }
 525 inline const wchar_t *wxStrstr(const wchar_t *haystack, const wchar_t *needle)
 526     { return wxCRT_StrstrW(haystack, needle); }
 527 inline const char *wxStrstr(const char *haystack, const wxString& needle)
 528     { return wxCRT_StrstrA(haystack, needle.mb_str()); }
 529 inline const wchar_t *wxStrstr(const wchar_t *haystack, const wxString& needle)
 530     { return wxCRT_StrstrW(haystack, needle.wc_str()); }
 531 // these functions return char* pointer into the non-temporary conversion buffer
 532 // used by c_str()'s implicit conversion to char*, for ANSI build compatibility
 533 inline const char *wxStrstr(const wxString& haystack, const wxString& needle)
 534     { return wxCRT_StrstrA(haystack.c_str(), needle.mb_str()); }
 535 inline const char *wxStrstr(const wxCStrData& haystack, const wxString& needle)
 536     { return wxCRT_StrstrA(haystack, needle.mb_str()); }
 537 inline const char *wxStrstr(const wxCStrData& haystack, const wxCStrData& needle)
 538     { return wxCRT_StrstrA(haystack, needle.AsCharBuf()); }
 539 // if 'needle' is char/wchar_t, then the same is probably wanted as return value
 540 inline const char *wxStrstr(const wxString& haystack, const char *needle)
 541     { return wxCRT_StrstrA(haystack.c_str(), needle); }
 542 inline const char *wxStrstr(const wxCStrData& haystack, const char *needle)
 543     { return wxCRT_StrstrA(haystack, needle); }
 544 inline const wchar_t *wxStrstr(const wxString& haystack, const wchar_t *needle)
 545     { return wxCRT_StrstrW(haystack.c_str(), needle); }
 546 inline const wchar_t *wxStrstr(const wxCStrData& haystack, const wchar_t *needle)
 547     { return wxCRT_StrstrW(haystack, needle); }
 548
 549 inline const char *wxStrchr(const char *s, char c)
 550     { return wxCRT_StrchrA(s, c); }
 551 inline const wchar_t *wxStrchr(const wchar_t *s, wchar_t c)
 552     { return wxCRT_StrchrW(s, c); }
 553 inline const char *wxStrrchr(const char *s, char c)
 554     { return wxCRT_StrrchrA(s, c); }
 555 inline const wchar_t *wxStrrchr(const wchar_t *s, wchar_t c)
 556     { return wxCRT_StrrchrW(s, c); }
 557 inline const char *wxStrchr(const char *s, const wxUniChar& c)
 558     { return wxCRT_StrchrA(s, (char)c); }
 559 inline const wchar_t *wxStrchr(const wchar_t *s, const wxUniChar& c)
 560     { return wxCRT_StrchrW(s, (wchar_t)c); }
 561 inline const char *wxStrrchr(const char *s, const wxUniChar& c)
 562     { return wxCRT_StrrchrA(s, (char)c); }
 563 inline const wchar_t *wxStrrchr(const wchar_t *s, const wxUniChar& c)
 564     { return wxCRT_StrrchrW(s, (wchar_t)c); }
 565 inline const char *wxStrchr(const char *s, const wxUniCharRef& c)
 566     { return wxCRT_StrchrA(s, (char)c); }
 567 inline const wchar_t *wxStrchr(const wchar_t *s, const wxUniCharRef& c)
 568     { return wxCRT_StrchrW(s, (wchar_t)c); }
 569 inline const char *wxStrrchr(const char *s, const wxUniCharRef& c)
 570     { return wxCRT_StrrchrA(s, (char)c); }
 571 inline const wchar_t *wxStrrchr(const wchar_t *s, const wxUniCharRef& c)
 572     { return wxCRT_StrrchrW(s, (wchar_t)c); }
 573 template<typename T>
 574 inline const T* wxStrchr(const wxCharTypeBuffer<T>& s, T c)
 575     { return wxStrchr(s.data(), c); }
 576 template<typename T>
 577 inline const T* wxStrrchr(const wxCharTypeBuffer<T>& s, T c)
 578     { return wxStrrchr(s.data(), c); }
 579 template<typename T>
 580 inline const T* wxStrchr(const wxCharTypeBuffer<T>& s, const wxUniChar& c)
 581     { return wxStrchr(s.data(), (T)c); }
 582 template<typename T>
 583 inline const T* wxStrrchr(const wxCharTypeBuffer<T>& s, const wxUniChar& c)
 584     { return wxStrrchr(s.data(), (T)c); }
 585 template<typename T>
 586 inline const T* wxStrchr(const wxCharTypeBuffer<T>& s, const wxUniCharRef& c)
 587     { return wxStrchr(s.data(), (T)c); }
 588 template<typename T>
 589 inline const T* wxStrrchr(const wxCharTypeBuffer<T>& s, const wxUniCharRef& c)
 590     { return wxStrrchr(s.data(), (T)c); }
 591 // these functions return char* pointer into the non-temporary conversion buffer
 592 // used by c_str()'s implicit conversion to char*, for ANSI build compatibility
 593 inline const char* wxStrchr(const wxString& s, char c)
 594     { return wxCRT_StrchrA((const char*)s.c_str(), c); }
 595 inline const char* wxStrrchr(const wxString& s, char c)
 596     { return wxCRT_StrrchrA((const char*)s.c_str(), c); }
 597 inline const char* wxStrchr(const wxString& s, int c)
 598     { return wxCRT_StrchrA((const char*)s.c_str(), c); }
 599 inline const char* wxStrrchr(const wxString& s, int c)
 600     { return wxCRT_StrrchrA((const char*)s.c_str(), c); }
 601 inline const char* wxStrchr(const wxString& s, const wxUniChar& c)
 602     { return wxCRT_StrchrA((const char*)s.c_str(), (char)c); }
 603 inline const char* wxStrrchr(const wxString& s, const wxUniChar& c)
 604     { return wxCRT_StrrchrA((const char*)s.c_str(), (char)c); }
 605 inline const char* wxStrchr(const wxString& s, const wxUniCharRef& c)
 606     { return wxCRT_StrchrA((const char*)s.c_str(), (char)c); }
 607 inline const char* wxStrrchr(const wxString& s, const wxUniCharRef& c)
 608     { return wxCRT_StrrchrA((const char*)s.c_str(), (char)c); }
 609 inline const wchar_t* wxStrchr(const wxString& s, wchar_t c)
 610     { return wxCRT_StrchrW((const wchar_t*)s.c_str(), c); }
 611 inline const wchar_t* wxStrrchr(const wxString& s, wchar_t c)
 612     { return wxCRT_StrrchrW((const wchar_t*)s.c_str(), c); }
 613 inline const char* wxStrchr(const wxCStrData& s, char c)
 614     { return wxCRT_StrchrA(s.AsChar(), c); }
 615 inline const char* wxStrrchr(const wxCStrData& s, char c)
 616     { return wxCRT_StrrchrA(s.AsChar(), c); }
 617 inline const char* wxStrchr(const wxCStrData& s, int c)
 618     { return wxCRT_StrchrA(s.AsChar(), c); }
 619 inline const char* wxStrrchr(const wxCStrData& s, int c)
 620     { return wxCRT_StrrchrA(s.AsChar(), c); }
 621 inline const char* wxStrchr(const wxCStrData& s, const wxUniChar& c)
 622     { return wxCRT_StrchrA(s.AsChar(), (char)c); }
 623 inline const char* wxStrrchr(const wxCStrData& s, const wxUniChar& c)
 624     { return wxCRT_StrrchrA(s.AsChar(), (char)c); }
 625 inline const char* wxStrchr(const wxCStrData& s, const wxUniCharRef& c)
 626     { return wxCRT_StrchrA(s.AsChar(), (char)c); }
 627 inline const char* wxStrrchr(const wxCStrData& s, const wxUniCharRef& c)
 628     { return wxCRT_StrrchrA(s.AsChar(), (char)c); }
 629 inline const wchar_t* wxStrchr(const wxCStrData& s, wchar_t c)
 630     { return wxCRT_StrchrW(s.AsWChar(), c); }
 631 inline const wchar_t* wxStrrchr(const wxCStrData& s, wchar_t c)
 632     { return wxCRT_StrrchrW(s.AsWChar(), c); }
 633
 634 inline const char *wxStrpbrk(const char *s, const char *accept)
 635     { return wxCRT_StrpbrkA(s, accept); }
 636 inline const wchar_t *wxStrpbrk(const wchar_t *s, const wchar_t *accept)
 637     { return wxCRT_StrpbrkW(s, accept); }
 638 inline const char *wxStrpbrk(const char *s, const wxString& accept)
 639     { return wxCRT_StrpbrkA(s, accept.mb_str()); }
 640 inline const char *wxStrpbrk(const char *s, const wxCStrData& accept)
 641     { return wxCRT_StrpbrkA(s, accept.AsCharBuf()); }
 642 inline const wchar_t *wxStrpbrk(const wchar_t *s, const wxString& accept)
 643     { return wxCRT_StrpbrkW(s, accept.wc_str()); }
 644 inline const wchar_t *wxStrpbrk(const wchar_t *s, const wxCStrData& accept)
 645     { return wxCRT_StrpbrkW(s, accept.AsWCharBuf()); }
 646 inline const char *wxStrpbrk(const wxString& s, const wxString& accept)
 647     { return wxCRT_StrpbrkA(s.c_str(), accept.mb_str()); }
 648 inline const char *wxStrpbrk(const wxString& s, const char *accept)
 649     { return wxCRT_StrpbrkA(s.c_str(), accept); }
 650 inline const wchar_t *wxStrpbrk(const wxString& s, const wchar_t *accept)
 651     { return wxCRT_StrpbrkW(s.wc_str(), accept); }
 652 inline const char *wxStrpbrk(const wxString& s, const wxCStrData& accept)
 653     { return wxCRT_StrpbrkA(s.c_str(), accept.AsCharBuf()); }
 654 inline const char *wxStrpbrk(const wxCStrData& s, const wxString& accept)
 655     { return wxCRT_StrpbrkA(s.AsChar(), accept.mb_str()); }
 656 inline const char *wxStrpbrk(const wxCStrData& s, const char *accept)
 657     { return wxCRT_StrpbrkA(s.AsChar(), accept); }
 658 inline const wchar_t *wxStrpbrk(const wxCStrData& s, const wchar_t *accept)
 659     { return wxCRT_StrpbrkW(s.AsWChar(), accept); }
 660 inline const char *wxStrpbrk(const wxCStrData& s, const wxCStrData& accept)
 661     { return wxCRT_StrpbrkA(s.AsChar(), accept.AsCharBuf()); }
 662 template <typename S, typename T>
 663 inline const T *wxStrpbrk(const S& s, const wxCharTypeBuffer<T>& accept)
 664     { return wxStrpbrk(s, accept.data()); }
 665
 666
 667 /* inlined non-const versions */
 668 inline char *wxStrstr(char *haystack, const char *needle)
 669     { return (char *)wxStrstr((const char *)haystack, needle); }
 670 inline wchar_t *wxStrstr(wchar_t *haystack, const wchar_t *needle)
 671     { return (wchar_t *)wxStrstr((const wchar_t *)haystack, needle); }
 672 inline char *wxStrstr(char *haystack, const wxString& needle)
 673     { return (char *)wxStrstr((const char *)haystack, needle); }
 674 inline wchar_t *wxStrstr(wchar_t *haystack, const wxString& needle)
 675     { return (wchar_t *)wxStrstr((const wchar_t *)haystack, needle); }
 676
 677 inline char * wxStrchr(char *s, char c)
 678     { return (char *)wxStrchr((const char *)s, c); }
 679 inline char * wxStrrchr(char *s, char c)
 680     { return (char *)wxStrrchr((const char *)s, c); }
 681 inline wchar_t * wxStrchr(wchar_t *s, wchar_t c)
 682     { return (wchar_t *)wxStrchr((const wchar_t *)s, c); }
 683 inline wchar_t * wxStrrchr(wchar_t *s, wchar_t c)
 684     { return (wchar_t *)wxStrrchr((const wchar_t *)s, c); }
 685
 686 inline char * wxStrpbrk(char *s, const char *accept)
 687     { return (char *)wxStrpbrk((const char *)s, accept); }
 688 inline wchar_t * wxStrpbrk(wchar_t *s, const wchar_t *accept)
 689     { return (wchar_t *)wxStrpbrk((const wchar_t *)s, accept); }
 690 inline char * wxStrpbrk(char *s, const wxString& accept)
 691     { return (char *)wxStrpbrk((const char *)s, accept); }
 692 inline wchar_t * wxStrpbrk(wchar_t *s, const wxString& accept)
 693     { return (wchar_t *)wxStrpbrk((const wchar_t *)s, accept); }
 694
 695
 696 // ----------------------------------------------------------------------------
 697 //                              stdio.h functions
 698 // ----------------------------------------------------------------------------
 699
 700 // NB: using fn_str() for mode is a hack to get the same type (char*/wchar_t*)
 701 //     as needed, the conversion itself doesn't matter, it's ASCII
 702 inline FILE *wxFopen(const wxString& path, const wxString& mode)
 703     { return wxCRT_Fopen(path.fn_str(), mode.fn_str()); }
 704 inline FILE *wxFreopen(const wxString& path, const wxString& mode, FILE *stream)
 705     { return wxCRT_Freopen(path.fn_str(), mode.fn_str(), stream); }
 706 inline int wxRemove(const wxString& path)
 707     { return wxCRT_Remove(path.fn_str()); }
 708 inline int wxRename(const wxString& oldpath, const wxString& newpath)
 709     { return wxCRT_Rename(oldpath.fn_str(), newpath.fn_str()); }
 710
 711 extern WXDLLIMPEXP_BASE int wxPuts(const wxString& s);
 712 extern WXDLLIMPEXP_BASE int wxFputs(const wxString& s, FILE *stream);
 713 extern WXDLLIMPEXP_BASE void wxPerror(const wxString& s);
 714
 715 extern WXDLLIMPEXP_BASE int wxFputc(const wxUniChar& c, FILE *stream);
 716
 717 #define wxPutc(c, stream)  wxFputc(c, stream)
 718 #define wxPutchar(c)       wxFputc(c, stdout)
 719 #define wxFputchar(c)      wxPutchar(c)
 720
 721 // NB: We only provide ANSI version of fgets() because fgetws() interprets the
 722 //     stream according to current locale, which is rarely what is desired.
 723 inline char *wxFgets(char *s, int size, FILE *stream)
 724     { return wxCRT_FgetsA(s, size, stream); }
 725 // This version calls ANSI version and converts the string using wxConvLibc
 726 extern WXDLLIMPEXP_BASE wchar_t *wxFgets(wchar_t *s, int size, FILE *stream);
 727
 728 #define wxGets(s) wxGets_is_insecure_and_dangerous_use_wxFgets_instead
 729
 730 // NB: We only provide ANSI versions of this for the same reasons as in the
 731 //     case of wxFgets() above
 732 inline int wxFgetc(FILE *stream) { return wxCRT_FgetcA(stream); }
 733 inline int wxUngetc(int c, FILE *stream) { return wxCRT_UngetcA(c, stream); }
 734
 735 #define wxGetc(stream)     wxFgetc(stream)
 736 #define wxGetchar()        wxFgetc(stdin)
 737 #define wxFgetchar()       wxGetchar()
 738
 739 // ----------------------------------------------------------------------------
 740 //                             stdlib.h functions
 741 // ----------------------------------------------------------------------------
 742
 743 #ifdef wxCRT_AtoiW
 744 inline int wxAtoi(const wxString& str) { return wxCRT_AtoiW(str.wc_str()); }
 745 #else
 746 inline int wxAtoi(const wxString& str) { return wxCRT_AtoiA(str.mb_str()); }
 747 #endif
 748
 749 #ifdef wxCRT_AtolW
 750 inline long wxAtol(const wxString& str) { return wxCRT_AtolW(str.wc_str()); }
 751 #else
 752 inline long wxAtol(const wxString& str) { return wxCRT_AtolA(str.mb_str()); }
 753 #endif
 754
 755 #ifdef wxCRT_AtofW
 756 inline double wxAtof(const wxString& str) { return wxCRT_AtofW(str.wc_str()); }
 757 #else
 758 inline double wxAtof(const wxString& str) { return wxCRT_AtofA(str.mb_str()); }
 759 #endif
 760
 761 inline double wxStrtod(const char *nptr, char **endptr)
 762     { return wxCRT_StrtodA(nptr, endptr); }
 763 inline double wxStrtod(const wchar_t *nptr, wchar_t **endptr)
 764     { return wxCRT_StrtodW(nptr, endptr); }
 765 template<typename T>
 766 inline double wxStrtod(const wxCharTypeBuffer<T>& nptr, T **endptr)
 767     { return wxStrtod(nptr.data(), endptr); }
 768
 769 // We implement wxStrto*() like this so that the code compiles when NULL is
 770 // passed in - - if we had just char** and wchar_t** overloads for 'endptr', it
 771 // would be ambiguous. The solution is to use a template so that endptr can be
 772 // any type: when NULL constant is used, the type will be int and we can handle
 773 // that case specially. Otherwise, we infer the type that 'nptr' should be
 774 // converted to from the type of 'endptr'. We need wxStrtoxCharType<T> template
 775 // to make the code compile even for T=int (that's the case when it's not going
 776 // to be ever used, but it still has to compile).
 777 template<typename T> struct wxStrtoxCharType {};
 778 template<> struct wxStrtoxCharType<char**>
 779 {
 780     typedef const char* Type;
 781     static char** AsPointer(char **p) { return p; }
 782 };
 783 template<> struct wxStrtoxCharType<wchar_t**>
 784 {
 785     typedef const wchar_t* Type;
 786     static wchar_t** AsPointer(wchar_t **p) { return p; }
 787 };
 788 template<> struct wxStrtoxCharType<int>
 789 {
 790     typedef const char* Type; /* this one is never used */
 791     static char** AsPointer(int WXUNUSED_UNLESS_DEBUG(p))
 792     {
 793         wxASSERT_MSG( p == 0, "passing non-NULL int is invalid" );
 794         return NULL;
 795     }
 796 };
 797
 798 template<typename T>
 799 inline double wxStrtod(const wxString& nptr, T endptr)
 800 {
 801     if ( endptr == 0 )
 802     {
 803         // when we don't care about endptr, use the string representation that
 804         // doesn't require any conversion (it doesn't matter for this function
 805         // even if its UTF-8):
 806         return wxStrtod(nptr.wx_str(), (wxStringCharType**)NULL);
 807     }
 808     else
 809     {
 810         // note that it is important to use c_str() here and not mb_str() or
 811         // wc_str(), because we store the pointer into (possibly converted)
 812         // buffer in endptr and so it must be valid even when wxStrtod() returns
 813         typedef typename wxStrtoxCharType<T>::Type CharType;
 814         return wxStrtod((CharType)nptr.c_str(),
 815                         wxStrtoxCharType<T>::AsPointer(endptr));
 816     }
 817 }
 818 template<typename T>
 819 inline double wxStrtod(const wxCStrData& nptr, T endptr)
 820     { return wxStrtod(nptr.AsString(), endptr); }
 821
 822
 823 #define WX_STRTOX_FUNC(rettype, name, implA, implW)                           \
 824     /* see wxStrtod() above for explanation of this code: */                  \
 825     inline rettype name(const char *nptr, char **endptr, int base)            \
 826         { return implA(nptr, endptr, base); }                                 \
 827     inline rettype name(const wchar_t *nptr, wchar_t **endptr, int base)      \
 828         { return implW(nptr, endptr, base); }                                 \
 829     template<typename T>                                                      \
 830     inline rettype name(const wxCharTypeBuffer<T>& nptr, T **endptr, int base)\
 831         { return name(nptr.data(), endptr); }                                 \
 832     template<typename T>                                                      \
 833     inline rettype name(const wxString& nptr, T endptr, int base)             \
 834     {                                                                         \
 835         if ( endptr == 0 )                                                    \
 836             return name(nptr.wx_str(), (wxStringCharType**)NULL, base);       \
 837         else                                                                  \
 838         {                                                                     \
 839             typedef typename wxStrtoxCharType<T>::Type CharType;              \
 840             return name((CharType)nptr.c_str(),                               \
 841                         wxStrtoxCharType<T>::AsPointer(endptr),               \
 842                         base);                                                \
 843         }                                                                     \
 844     }                                                                         \
 845     template<typename T>                                                      \
 846     inline rettype name(const wxCStrData& nptr, T endptr, int base)           \
 847         { return name(nptr.AsString(), endptr, base); }
 848
 849 WX_STRTOX_FUNC(long, wxStrtol, wxCRT_StrtolA, wxCRT_StrtolW)
 850 WX_STRTOX_FUNC(unsigned long, wxStrtoul, wxCRT_StrtoulA, wxCRT_StrtoulW)
 851 #ifdef wxLongLong_t
 852 WX_STRTOX_FUNC(wxLongLong_t, wxStrtoll, wxCRT_StrtollA, wxCRT_StrtollW)
 853 WX_STRTOX_FUNC(wxULongLong_t, wxStrtoull, wxCRT_StrtoullA, wxCRT_StrtoullW)
 854 #endif // wxLongLong_t
 855
 856 #undef WX_STRTOX_FUNC
 857
 858
 859 // there is no command interpreter under CE, hence no system()
 860 #ifndef __WXWINCE__
 861
 862 // mingw32 doesn't provide _tsystem() even though it provides other stdlib.h
 863 // functions in their wide versions
 864 #ifdef wxCRT_SystemW
 865 inline int wxSystem(const wxString& str) { return wxCRT_SystemW(str.wc_str()); }
 866 #else
 867 inline int wxSystem(const wxString& str) { return wxCRT_SystemA(str.mb_str()); }
 868 #endif
 869
 870 #endif // !__WXWINCE__/__WXWINCE__
 871
 872 inline char* wxGetenv(const char *name) { return wxCRT_GetenvA(name); }
 873 inline wchar_t* wxGetenv(const wchar_t *name) { return wxCRT_GetenvW(name); }
 874 inline char* wxGetenv(const wxString& name) { return wxCRT_GetenvA(name.mb_str()); }
 875 inline char* wxGetenv(const wxCStrData& name) { return wxCRT_GetenvA(name.AsCharBuf()); }
 876 inline char* wxGetenv(const wxCharBuffer& name) { return wxCRT_GetenvA(name.data()); }
 877 inline wchar_t* wxGetenv(const wxWCharBuffer& name) { return wxCRT_GetenvW(name.data()); }
 878
 879 // ----------------------------------------------------------------------------
 880 //                            time.h functions
 881 // ----------------------------------------------------------------------------
 882
 883 inline size_t wxStrftime(char *s, size_t max,
 884                          const wxString& format, const struct tm *tm)
 885     { return wxCRT_StrftimeA(s, max, format.mb_str(), tm); }
 886
 887 inline size_t wxStrftime(wchar_t *s, size_t max,
 888                          const wxString& format, const struct tm *tm)
 889     { return wxCRT_StrftimeW(s, max, format.wc_str(), tm); }
 890
 891 // NB: we can't provide both char* and wchar_t* versions for obvious reasons
 892 //     and returning wxString wouldn't work either (it would be immediately
 893 //     destroyed and if assigned to char*/wchar_t*, the pointer would be
 894 //     invalid), so we only keep ASCII version, because the returned value
 895 //     is always ASCII anyway
 896 #define  wxAsctime   asctime
 897 #define  wxCtime     ctime
 898
 899
 900 // ----------------------------------------------------------------------------
 901 //                             ctype.h functions
 902 // ----------------------------------------------------------------------------
 903
 904 // FIXME-UTF8: we'd be better off implementing these ourselves, as the CRT
 905 //             version is locale-dependent
 906 // FIXME-UTF8: these don't work when EOF is passed in because of wxUniChar,
 907 //             is this OK or not?
 908
 909 inline bool wxIsalnum(const wxUniChar& c)  { return wxCRT_IsalnumW(c) != 0; }
 910 inline bool wxIsalpha(const wxUniChar& c)  { return wxCRT_IsalphaW(c) != 0; }
 911 inline bool wxIscntrl(const wxUniChar& c)  { return wxCRT_IscntrlW(c) != 0; }
 912 inline bool wxIsdigit(const wxUniChar& c)  { return wxCRT_IsdigitW(c) != 0; }
 913 inline bool wxIsgraph(const wxUniChar& c)  { return wxCRT_IsgraphW(c) != 0; }
 914 inline bool wxIslower(const wxUniChar& c)  { return wxCRT_IslowerW(c) != 0; }
 915 inline bool wxIsprint(const wxUniChar& c)  { return wxCRT_IsprintW(c) != 0; }
 916 inline bool wxIspunct(const wxUniChar& c)  { return wxCRT_IspunctW(c) != 0; }
 917 inline bool wxIsspace(const wxUniChar& c)  { return wxCRT_IsspaceW(c) != 0; }
 918 inline bool wxIsupper(const wxUniChar& c)  { return wxCRT_IsupperW(c) != 0; }
 919 inline bool wxIsxdigit(const wxUniChar& c) { return wxCRT_IsxdigitW(c) != 0; }
 920
 921 inline wxUniChar wxTolower(const wxUniChar& c) { return wxCRT_TolowerW(c); }
 922 inline wxUniChar wxToupper(const wxUniChar& c) { return wxCRT_ToupperW(c); }
 923
 924 #if WXWIN_COMPATIBILITY_2_8
 925 // we had goofed and defined wxIsctrl() instead of (correct) wxIscntrl() in the
 926 // initial versions of this header -- now it is too late to remove it so
 927 // although we fixed the function/macro name above, still provide the
 928 // backwards-compatible synonym.
 929 wxDEPRECATED( inline int wxIsctrl(const wxUniChar& c) );
 930 inline int wxIsctrl(const wxUniChar& c) { return wxIscntrl(c); }
 931 #endif // WXWIN_COMPATIBILITY_2_8
 932
 933 #endif /* _WX_WXCRT_H_ */