X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8907154c1a8a6882c6797d1f16393ddfb23e7f3a..a69aabc360d54a93e355fab72c6513c75aaa7337:/include/wx/wxchar.h

diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index f580470286..7c70a8b4d3 100644
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -14,7 +14,9 @@
 #ifndef _WX_WXCHAR_H_
 #define _WX_WXCHAR_H_
 
-#include "wx/defs.h"        /* for wxUSE_UNICODE */
+/* defs.h indirectly includes this file, so don't include it here */
+#include "wx/platform.h"
+#include "wx/dlimpexp.h"
 
 #if defined(HAVE_STRTOK_R) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
     char *strtok_r(char *, const char *, char **);
@@ -48,7 +50,7 @@
 /*
     Standard headers we need here.
 
-    NB: don't include any wxWidgets headers here because almost of them include
+    NB: don't include any wxWidgets headers here because almost all of them include
         this one!
  */
 
@@ -57,7 +59,9 @@
 
 /* Almost all compiler have strdup(), but not quite all: CodeWarrior under Mac */
 /* and VC++ for Windows CE don't provide it */
-#if !(defined(__MWERKS__) && defined(__WXMAC__)) && !defined(__WXWINCE__)
+#if defined(__VISUALC__) && __VISUALC__ >= 1400
+    #define wxStrdupA _strdup
+#elif !(defined(__MWERKS__) && defined(__WXMAC__)) && !defined(__WXWINCE__)
     /* use #define, not inline wrapper, as it is tested with #ifndef below */
     #define wxStrdupA strdup
 #endif
@@ -141,9 +145,17 @@
     #define wxHAVE_TCHAR_SUPPORT
 #endif /* compilers with (good) TCHAR support */
 
-#ifdef __MWERKS__
-    #define HAVE_WPRINTF
-#endif
+#if defined(__MWERKS__)
+    /* Metrowerks only has wide char support for OS X >= 10.3 */
+    #if !defined(__DARWIN__) || \
+         (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3)
+        #define wxHAVE_MWERKS_UNICODE
+    #endif
+
+    #ifdef wxHAVE_MWERKS_UNICODE
+        #define HAVE_WPRINTF
+    #endif
+#endif /* __MWERKS__ */
 
 #ifdef wxHAVE_TCHAR_SUPPORT
     /* get TCHAR definition if we've got it */
@@ -176,6 +188,13 @@
     /*     char wchar_t is always unsigned) and (b) was how the previous */
     /*     definitions worked so keep it like this */
 
+    /* Sun's SunPro compiler supports the wchar_t type and wide character */
+    /* functions, but does not define __WCHAR_TYPE__. Define it here to */
+    /* allow unicode enabled builds. */
+    #if defined(__SUNPRO_CC) || defined(__SUNPRO_C)
+    #define __WCHAR_TYPE__ wxchar_t
+    #endif
+
     /* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */
     /* comment below */
     #if !defined(__WCHAR_TYPE__) || \
@@ -213,7 +232,8 @@
     #if !wxUSE_UNICODE
         #define _T(x) x
     #else /* Unicode */
-        #define _T(x) L ## x
+        /* use wxCONCAT_HELPER so that x could be expanded if it's a macro */
+        #define _T(x) wxCONCAT_HELPER(L, x)
     #endif /* ASCII/Unicode */
 #endif /* !defined(_T) */
 
@@ -222,20 +242,20 @@
 /* and _() in wxWidgets sources */
 #define wxT(x)       _T(x)
 
+/* a helper macro allowing to make another macro Unicode-friendly, see below */
+#define wxAPPLY_T(x) _T(x)
+
 /* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
 #ifndef __TFILE__
-    #define __XFILE__(x) wxT(x)
-    #define __TFILE__ __XFILE__(__FILE__)
+    #define __TFILE__ wxAPPLY_T(__FILE__)
 #endif
 
 #ifndef __TDATE__
-    #define __XDATE__(x) wxT(x)
-    #define __TDATE__ __XDATE__(__DATE__)
+    #define __TDATE__ wxAPPLY_T(__DATE__)
 #endif
 
 #ifndef __TTIME__
-    #define __XTIME__(x) wxT(x)
-    #define __TTIME__ __XTIME__(__TIME__)
+    #define __TTIME__ wxAPPLY_T(__TIME__)
 #endif
 
 /*
@@ -349,8 +369,14 @@
     /* special case: not all TCHAR-aware compilers have those */
     #if defined(__VISUALC__) || \
             (defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
-        #define wxVsnprintf_    _vsntprintf
-        #define wxSnprintf_     _sntprintf
+        /*
+           we can only use the system _vsntprintf() if we don't require the
+           Unix98 positional parameters support as it doesn't have it
+         */
+        #if !wxUSE_PRINTF_POS_PARAMS
+            #define wxVsnprintf_    _vsntprintf
+            #define wxSnprintf_     _sntprintf
+        #endif
     #endif
 
     /* special case: these functions are missing under Win9x with Unicows so we */
@@ -389,8 +415,28 @@
     #define wxMbstowcs mbstowcs
     #define wxWcstombs wcstombs
 #else /* !TCHAR-aware compilers */
+    /*
+        There are 2 unrelated problems with these functions under Mac:
+            a) Metrowerks MSL CRT implements them strictly in C99 sense and
+               doesn't support (very common) extension of allowing to call
+               mbstowcs(NULL, ...) which makes it pretty useless as you can't
+               know the size of the needed buffer
+            b) OS X <= 10.2 declares and even defined these functions but
+               doesn't really implement them -- they always return an error
+
+        So use our own replacements in both cases.
+     */
+    #if defined(__MWERKS__) && defined(__MSL__)
+        #define wxNEED_WX_MBSTOWCS
+    #endif
 
-    #if !defined(__MWERKS__) && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
+    #ifdef __DARWIN__
+        #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2
+            #define wxNEED_WX_MBSTOWCS
+        #endif
+    #endif
+
+    #ifdef wxNEED_WX_MBSTOWCS
         /* even though they are defined and "implemented", they are bad and just
            stubs so we need our own - we need these even in ANSI builds!! */
         WXDLLIMPEXP_BASE size_t wxMbstowcs (wchar_t *, const char *, size_t);
@@ -400,9 +446,19 @@
         #define wxWcstombs wcstombs
     #endif
 
-    /* No UNICODE in the c library except wchar_t typedef on mac OSX 10.2 and less - roll our own */
-    #if !defined(__MWERKS__) && wxUSE_UNICODE && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
-
+    /* 
+       The system C library on Mac OS X 10.2 and below does not support
+       unicode: in other words all wide-character functions such as towupper et
+       al. do simply not exist so we need to provide our own in that context,
+       except for the wchar_t definition/typedef itself.
+       
+       We need to do this for both project builder and CodeWarrior as
+       the latter uses the system C library in Mach builds for wide character
+       support, which as mentioned does not exist on 10.2 and below.
+    */
+    #if wxUSE_UNICODE && \
+        defined(__DARWIN__) && \
+            ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
         /* we need everything! */
         #define wxNEED_WX_STRING_H
         #define wxNEED_WX_CTYPE_H
@@ -817,31 +873,34 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
    We define function with a trailing underscore here because the real one is a
    wrapper around it as explained below
  */
-#ifndef wxVsnprintf_
+#if !defined( wxVsnprintf_ ) && !wxUSE_PRINTF_POS_PARAMS
     #if wxUSE_UNICODE
-        #if defined(__MWERKS__)
+        #ifdef wxHAVE_MWERKS_UNICODE
             #define HAVE_WCSRTOMBS 1
             #define HAVE_VSWPRINTF 1
-        #endif
+        #endif /* Metrowerks with Unicode support */
         #if defined(__WATCOMC__)
             #define wxVsnprintf_    _vsnwprintf
             #define wxSnprintf_     _snwprintf
-        #endif
+        #endif /* Watcom */
         #if defined(HAVE__VSNWPRINTF)
             #define wxVsnprintf_    _vsnwprintf
         /* MinGW?MSVCRT has the wrong vswprintf */
-        #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__)
+        /* Mac OS X has a somehow buggy vswprintf */
+        #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__) && !defined(__DARWIN__)
             #define wxVsnprintf_    vswprintf
         #endif
     #else /* ASCII */
         /* all versions of CodeWarrior supported by wxWidgets apparently have */
         /* both snprintf() and vsnprintf() */
-        #if defined(HAVE_SNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
+        #if defined(HAVE_SNPRINTF) \
+            || defined(__MWERKS__) || defined(__WATCOMC__)
             #ifndef HAVE_BROKEN_SNPRINTF_DECL
                 #define wxSnprintf_     snprintf
             #endif
         #endif
-        #if defined(HAVE_VSNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
+        #if defined(HAVE_VSNPRINTF) \
+            || defined(__MWERKS__) || defined(__WATCOMC__)
             #if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
                 #define wxVsnprintf_    wx_fixed_vsnprintf
             #else
@@ -849,7 +908,28 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
             #endif
         #endif
     #endif
-#endif /* wxVsnprintf_ not defined yet */
+#endif /* wxVsnprintf_ not defined yet && !wxUSE_PRINTF_POS_PARAMS */
+
+#if !defined( wxVsnprintf_ ) && wxUSE_PRINTF_POS_PARAMS
+    /*
+        The systems where vsnprintf() supports positionals should define
+        the HAVE_UNIX98_PRINTF symbol.
+
+        On systems which don't (e.g. Windows) we are forced to use
+        our wxVsnprintf() implementation.
+    */
+    #if defined(HAVE_UNIX98_PRINTF)
+        #if wxUSE_UNICODE
+            #define wxVsnprintf_        vswprintf
+        #else /* ASCII */
+            #if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
+                #define wxVsnprintf_    wx_fixed_vsnprintf
+            #else
+                #define wxVsnprintf_    vsnprintf
+            #endif
+        #endif
+    #endif
+#endif  // !defined( wxVsnprintf_ ) && wxUSE_PRINTF_POS_PARAMS
 
 #ifndef wxSnprintf_
     /* no [v]snprintf(), cook our own */
@@ -1206,13 +1286,13 @@ WXDLLIMPEXP_BASE void *calloc( size_t num, size_t size );
             return szRet;
         }
 
-    #else //!wxUSE_UNICODE
+    #else /* !wxUSE_UNICODE */
     #   define wxTmemchr memchr
     #   define wxTmemcmp memcmp
     #   define wxTmemcpy memcpy
     #   define wxTmemmove memmove
     #   define wxTmemset memset
-    #endif
+    #endif /* wxUSE_UNICODE/!wxUSE_UNICODE */
 
 #endif /*__cplusplus*/