merged in the commit from the 2.2 branch

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8477 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/string.h

@@ -855,7 +855,7 @@ public:
 #if !defined(__VISUALC__) || defined(__WIN32__)
     // find first n characters of sz
   size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
-#endif
+#endif // VC++ 1.5
 
   // Gives a duplicate symbol (presumably a case-insensitivity problem)
 #if !defined(__BORLANDC__)
@@ -874,7 +874,7 @@ public:
           size_t n = npos) const;
     // as find, but from the end
   size_t rfind(wxChar ch, size_t nStart = npos) const;
-#endif
+#endif // VC++ 1.5
 
     // find first/last occurence of any character in the set
 
@@ -905,7 +905,8 @@ public:
     // same as above
   size_t find_first_not_of(wxChar ch, size_t nStart = 0) const;
     //  as strcspn()
-  size_t find_last_not_of(const wxString& str, size_t nStart=npos) const;
+  size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
+    { return find_first_not_of(str.c_str(), nStart); }
     // same as above
   size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
     // same as above
@@ -917,15 +918,18 @@ public:
     // just like strcmp()
   int compare(const wxString& str) const { return Cmp(str); }
     // comparison with a substring
-  int compare(size_t nStart, size_t nLen, const wxString& str) const;
+  int compare(size_t nStart, size_t nLen, const wxString& str) const
+    { return Mid(nStart, nLen).Cmp(str); }
     // comparison of 2 substrings
   int compare(size_t nStart, size_t nLen,
-              const wxString& str, size_t nStart2, size_t nLen2) const;
+              const wxString& str, size_t nStart2, size_t nLen2) const
+    { return Mid(nStart, nLen).Cmp(str.Mid(nStart2, nLen2)); }
     // just like strcmp()
   int compare(const wxChar* sz) const { return Cmp(sz); }
     // substring comparison with first nCount characters of sz
   int compare(size_t nStart, size_t nLen,
-              const wxChar* sz, size_t nCount = npos) const;
+              const wxChar* sz, size_t nCount = npos) const
+    { return Mid(nStart, nLen).Cmp(wxString(sz, nCount)); }
 
   // substring extraction
   wxString substr(size_t nStart = 0, size_t nLen = npos) const

src/common/string.cpp

@@ -1536,8 +1536,34 @@ int wxString::sprintf(const wxChar *pszFormat, ...)
 // ---------------------------------------------------------------------------
 // standard C++ library string functions
 // ---------------------------------------------------------------------------
+
 #ifdef  wxSTD_STRING_COMPATIBILITY
 
+void wxString::resize(size_t nSize, wxChar ch)
+{
+    size_t len = length();
+
+    if ( nSize < len )
+    {
+        Truncate(nSize);
+    }
+    else if ( nSize > len )
+    {
+        *this += wxString(ch, len - nSize);
+    }
+    //else: we have exactly the specified length, nothing to do
+}
+
+void wxString::swap(wxString& str)
+{
+    // this is slightly less efficient than fiddling with m_pchData directly,
+    // but it is still quite efficient as we don't copy the string here because
+    // ref count always stays positive
+    wxString tmp = str;
+    str = *this;
+    *this = str;
+}
+
 wxString& wxString::insert(size_t nPos, const wxString& str)
 {
   wxASSERT( str.GetStringData()->IsValid() );