wxWidgets3: update to svn r70933

Externals/wxWidgets3/include/wx/string.h

@@ -4,7 +4,7 @@
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     29/01/98
-// RCS-ID:      $Id: string.h 67181 2011-03-13 13:53:54Z VZ $
+// RCS-ID:      $Id: string.h 70796 2012-03-04 00:29:31Z VZ $
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
@@ -24,7 +24,6 @@
 
 #include "wx/defs.h"        // everybody should include this
 
-#ifndef __WXPALMOS5__
 #if defined(__WXMAC__) || defined(__VISAGECPP__)
     #include <ctype.h>
 #endif
@@ -47,7 +46,6 @@
 #ifdef HAVE_STRCASECMP_IN_STRINGS_H
     #include <strings.h>    // for strcasecmp()
 #endif // HAVE_STRCASECMP_IN_STRINGS_H
-#endif // ! __WXPALMOS5__
 
 #include "wx/wxcrtbase.h"   // for wxChar, wxStrlen() etc.
 #include "wx/strvararg.h"
@@ -71,7 +69,7 @@
 // it would have to be re-tested and probably corrected
 // CS: under OSX release builds the string destructor/cache cleanup sometimes
 // crashes, disable until we find the true reason or a better workaround
-#if wxUSE_UNICODE_UTF8 && !defined(__WXMSW__) && !defined(__WXOSX__)
+#if wxUSE_UNICODE_UTF8 && !defined(__WINDOWS__) && !defined(__WXOSX__)
     #define wxUSE_STRING_POS_CACHE 1
 #else
     #define wxUSE_STRING_POS_CACHE 0
@@ -170,8 +168,7 @@ inline int Stricmp(const char *psz1, const char *psz2)
   return stricmp(psz1, psz2);
 #elif defined(__WXPM__)
   return stricmp(psz1, psz2);
-#elif defined(__WXPALMOS__) || \
-      defined(HAVE_STRCASECMP_IN_STRING_H) || \
+#elif defined(HAVE_STRCASECMP_IN_STRING_H) || \
       defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
       defined(__GNUWIN32__)
   return strcasecmp(psz1, psz2);
@@ -1345,12 +1342,13 @@ public:
   }
 #endif // wxUSE_STRING_POS_CACHE
 
-  // even if we're not built with wxUSE_STL == 1 it is very convenient to allow
-  // implicit conversions from std::string to wxString and vice verse as this
-  // allows to use the same strings in non-GUI and GUI code, however we don't
-  // want to unconditionally add this ctor as it would make wx lib dependent on
-  // libstdc++ on some Linux versions which is bad, so instead we ask the
-  // client code to define this wxUSE_STD_STRING symbol if they need it
+  // even if we're not built with wxUSE_STD_STRING_CONV_IN_WXSTRING == 1 it is
+  // very convenient to allow implicit conversions from std::string to wxString
+  // and vice verse as this allows to use the same strings in non-GUI and GUI
+  // code, however we don't want to unconditionally add this ctor as it would
+  // make wx lib dependent on libstdc++ on some Linux versions which is bad, so
+  // instead we ask the client code to define this wxUSE_STD_STRING symbol if
+  // they need it
 #if wxUSE_STD_STRING
   #if wxUSE_UNICODE_WCHAR
     wxString(const wxStdWideString& str) : m_impl(str) {}
@@ -1368,10 +1366,8 @@ public:
   #endif
 #endif // wxUSE_STD_STRING
 
-  // Unlike ctor from std::string, we provide conversion to std::string only
-  // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default),
-  // because it conflicts with operator const char/wchar_t* but we still
-  // provide explicit conversions to std::[w]string for convenience in any case
+  // Also always provide explicit conversions to std::[w]string in any case,
+  // see below for the implicit ones.
 #if wxUSE_STD_STRING
   // We can avoid a copy if we already use this string type internally,
   // otherwise we create a copy on the fly:
@@ -1408,13 +1404,14 @@ public:
     }
   #endif
 
-#if wxUSE_STL
-  // In wxUSE_STL case we also provide implicit conversions as there is no
-  // ambiguity with the const char/wchar_t* ones as they are disabled in this
-  // build (for consistency with std::basic_string<>)
+#if wxUSE_STD_STRING_CONV_IN_WXSTRING
+    // Implicit conversions to std::[w]string are not provided by default as
+    // they conflict with the implicit conversions to "const char/wchar_t *"
+    // which we use for backwards compatibility but do provide them if
+    // explicitly requested.
   operator wxStringToStdStringRetType() const { return ToStdString(); }
   operator wxStringToStdWstringRetType() const { return ToStdWstring(); }
-#endif // wxUSE_STL
+#endif // wxUSE_STD_STRING_CONV_IN_WXSTRING
 
 #undef wxStringToStdStringRetType
 #undef wxStringToStdWstringRetType
@@ -1654,11 +1651,12 @@ public:
     operator wxCStrData() const { return c_str(); }
 
     // the first two operators conflict with operators for conversion to
-    // std::string and they must be disabled in STL build; the next one only
-    // makes sense if conversions to char* are also defined and not defining it
-    // in STL build also helps us to get more clear error messages for the code
-    // which relies on implicit conversion to char* in STL build
-#if !wxUSE_STL
+    // std::string and they must be disabled if those conversions are enabled;
+    // the next one only makes sense if conversions to char* are also defined
+    // and not defining it in STL build also helps us to get more clear error
+    // messages for the code which relies on implicit conversion to char* in
+    // STL build
+#if !wxUSE_STD_STRING_CONV_IN_WXSTRING
     operator const char*() const { return c_str(); }
     operator const wchar_t*() const { return c_str(); }
 
@@ -1666,7 +1664,7 @@ public:
     // wxWidgets versions: this is the same as conversion to const char * so it
     // may fail!
     operator const void*() const { return c_str(); }
-#endif // wxUSE_STL
+#endif // !wxUSE_STD_STRING_CONV_IN_WXSTRING
 
     // identical to c_str(), for MFC compatibility
     const wxCStrData GetData() const { return c_str(); }