Fixed from Mumit Khan to allow DLL compilation for mingw32

[wxWidgets.git] / src / common / string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 917e979231d8e6c6ceee826dfb4787f338e58fc5..f37934d939c1aa8b65c26ca4fe76a14df9c4b4a2 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -360,8 +360,13 @@ wxString::wxString(const wchar_t *pwz)
 // allocates memory needed to store a C string of length nLen
 void wxString::AllocBuffer(size_t nLen)
 {
-  wxASSERT( nLen >  0         );    //
-  wxASSERT( nLen <= INT_MAX-1 );    // max size (enough room for 1 extra)
+  // allocating 0 sized buffer doesn't make sense, all empty strings should
+  // reuse g_strEmpty
+  wxASSERT( nLen >  0 );
+
+  // make sure that we don't overflow
+  wxASSERT( nLen < (INT_MAX / sizeof(wxChar)) -
+                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );
 
   STATISTICS_ADD(Length, nLen);
 
@@ -1072,36 +1077,31 @@ bool wxString::ToDouble(double *val) const
 }
 
 // ---------------------------------------------------------------------------
-// stream-like operators
+// formatted output
 // ---------------------------------------------------------------------------
-wxString& wxString::operator<<(int i)
+
+/* static */
+wxString wxString::Format(const wxChar *pszFormat, ...)
 {
-    wxString res;
-    res.Printf(wxT("%d"), i);
+    va_list argptr;
+    va_start(argptr, pszFormat);
 
-    return (*this) << res;
-}
+    wxString s;
+    s.PrintfV(pszFormat, argptr);
 
-wxString& wxString::operator<<(float f)
-{
-    wxString res;
-    res.Printf(wxT("%f"), f);
+    va_end(argptr);
 
-    return (*this) << res;
+    return s;
 }
 
-wxString& wxString::operator<<(double d)
+/* static */
+wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr)
 {
-    wxString res;
-    res.Printf(wxT("%g"), d);
-
-    return (*this) << res;
+    wxString s;
+    s.Printf(pszFormat, argptr);
+    return s;
 }
 
-// ---------------------------------------------------------------------------
-// formatted output
-// ---------------------------------------------------------------------------
-
 int wxString::Printf(const wxChar *pszFormat, ...)
 {
   va_list argptr;
@@ -1780,20 +1780,8 @@ void wxArrayString::Copy(const wxArrayString& src)
   if ( src.m_nCount > ARRAY_DEFAULT_INITIAL_SIZE )
     Alloc(src.m_nCount);
 
-  // we can't just copy the pointers here because otherwise we would share
-  // the strings with another array because strings are ref counted
-#if 0
-  if ( m_nCount != 0 )
-    memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(wxChar *));
-#endif // 0
-
   for ( size_t n = 0; n < src.m_nCount; n++ )
     Add(src[n]);
-
-  // if the other array is auto sorted too, we're already sorted, but
-  // otherwise we should rearrange the items
-  if ( m_autoSort && !src.m_autoSort )
-    Sort();
 }
 
 // grow the array