X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4356ee76a5cae9c0dec2f2ded173e5abc689d412..57fbe23f68f9ef92b8ef7e26bd06b399b53e33b2:/include/wx/wxchar.h

diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index 31bbb35f47..88ea300646 100644
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -80,9 +80,17 @@
 // Required for wxPrintf() etc
 #include <stdarg.h>
 
+// 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__)
+    // use #define, not inline wrapper, as it is tested with #ifndef below
+    #define wxStrdupA strdup
+#endif
+
 // non Unix compilers which do have wchar.h (but not tchar.h which is included
-// below and which includes wchar.h anyhow)
-#if defined(__MWERKS__) || defined(__VISAGECPP__)
+// below and which includes wchar.h anyhow).
+// Actually MinGW has tchar.h, but it does not include wchar.h
+#if defined(__MWERKS__) || defined(__VISAGECPP__) || defined(__MINGW32__)
     #ifndef HAVE_WCHAR_H
         #define HAVE_WCHAR_H
     #endif
@@ -90,7 +98,18 @@
 
 #if wxUSE_WCHAR_T
     #ifdef HAVE_WCHAR_H
-        #include <wchar.h>
+        // the current (as of Nov 2002) version of cygwin has a bug in its
+        // wchar.h -- there is no extern "C" around the declarations in it and
+        // this results in linking errors later; also, at least on some
+        // Cygwin versions, wchar.h requires sys/types.h
+        #ifdef __CYGWIN__
+            #include <sys/types.h>
+            extern "C" {
+        #endif // Cygwin
+                #include <wchar.h>
+        #ifdef __CYGWIN__
+            }
+        #endif // Cygwin
     #elif defined(HAVE_WCSTR_H)
         // old compilers have relevant declarations here
         #include <wcstr.h>
@@ -257,6 +276,7 @@
     #define  wxStrcoll   _tcscoll
     #define  wxStrcpy    _tcscpy
     #define  wxStrcspn   _tcscspn
+    #define  wxStrdupW   _wcsdup        // notice the 'W'!
     #define  wxStrftime  _tcsftime
     #define  wxStricmp   _tcsicmp
     #define  wxStrnicmp  _tcsnicmp
@@ -446,9 +466,7 @@
         #define  wxStrcoll   strcoll
         #define  wxStrcpy    strcpy
         #define  wxStrcspn   strcspn
-        #if !defined(__MWERKS__) || !defined(__WXMAC__)
-            #define  wxStrdup    strdup
-        #endif
+
         // wxStricmp and wxStrnicmp are defined below
         #define  wxStrlen_   strlen // used in wxStrlen inline function
         #define  wxStrncat   strncat
@@ -559,12 +577,32 @@ inline bool wxIsEmpty(const wxChar *p) { return !p || !*p; }
 // safe version of strlen() (returns 0 if passed NULL pointer)
 inline size_t wxStrlen(const wxChar *psz) { return psz ? wxStrlen_(psz) : 0; }
 
+// each of strdup() and wcsdup() may or may not be available but we need both
+// of them anyhow for wx/buffer.h so we define the missing one(s) in
+// wxchar.cpp and so we should always have both wxStrdupA and wxStrdupW
+// defined -- if this is somehow not the case in some situations, please
+// correct that and not the lines here
+#if wxUSE_UNICODE
+    #define wxStrdup wxStrdupW
+#else
+    #define wxStrdup wxStrdupA
+#endif
+
 WXDLLEXPORT bool wxOKlibc(); // for internal use
 
 // ----------------------------------------------------------------------------
 // printf() family saga
 // ----------------------------------------------------------------------------
 
+/*
+   For some systems vsnprintf() exists in the system libraries but not in the
+   headers, so we need to declare it ourselves to be able to use it.
+ */
+#ifndef HAVE_VSNPRINTF_DECL
+    extern "C"
+    int vsnprintf(char *str, size_t size, const char *format, va_list ap);
+#endif // !HAVE_VSNPRINTF_DECL
+
 /*
    First of all, we always want to define safe snprintf() function to be used
    instead of sprintf(). Some compilers already have it (or rather vsnprintf()
@@ -723,8 +761,12 @@ WXDLLEXPORT bool wxOKlibc(); // for internal use
     WXDLLEXPORT size_t   wxStrxfrm(wxChar *dest, const wxChar *src, size_t n);
 #endif // wxNEED_WX_STRING_H
 
-#ifndef wxStrdup
-WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz);
+#ifndef wxStrdupA
+WXDLLEXPORT char *wxStrdupA(const char *psz);
+#endif
+
+#ifndef wxStrdupW
+WXDLLEXPORT wchar_t *wxStrdupW(const wchar_t *pwz);
 #endif
 
 #ifndef wxStricmp