X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d545bdede67c1f4335e6b4822dfcad3775f631fc..51fe4b60ab4fec78eb1a67473d08b1c4740d03f5:/src/common/stringimpl.cpp

diff --git a/src/common/stringimpl.cpp b/src/common/stringimpl.cpp
index 95d6863301..d0a7165ce7 100644
--- a/src/common/stringimpl.cpp
+++ b/src/common/stringimpl.cpp
@@ -42,10 +42,6 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifdef __SALFORDC__
-    #include <clib.h>
-#endif
-
 // allocating extra space for each string consumes more memory but speeds up
 // the concatenation operations (nLen is the current string's length)
 // NB: EXTRA_ALLOC must be >= 0!
@@ -115,19 +111,26 @@ extern const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dumm
 // ----------------------------------------------------------------------------
 
 // this small class is used to gather statistics for performance tuning
+
+// uncomment this to enable gathering of some statistics about wxString
+// efficiency
 //#define WXSTRING_STATISTICS
+
 #ifdef  WXSTRING_STATISTICS
   class Averager
   {
   public:
     Averager(const wxStringCharType *sz) { m_sz = sz; m_nTotal = m_nCount = 0; }
    ~Averager()
-   { wxPrintf("wxString: average %s = %f\n", m_sz, ((float)m_nTotal)/m_nCount); }
+    {
+        wxPrintf("wxString %s: total = %lu, average = %f\n",
+                 m_sz, m_nTotal, ((float)m_nTotal)/m_nCount);
+    }
 
     void Add(size_t n) { m_nTotal += n; m_nCount++; }
 
   private:
-    size_t m_nCount, m_nTotal;
+    unsigned long m_nCount, m_nTotal;
     const wxStringCharType *m_sz;
   } g_averageLength("allocation size"),
     g_averageSummandLength("summand length"),
@@ -184,7 +187,7 @@ wxStringImpl::wxStringImpl(const_iterator first, const_iterator last)
 {
   if ( last >= first )
   {
-    InitWith(first, 0, last - first);
+    InitWith(first.GetPtr(), 0, last - first);
   }
   else
   {
@@ -211,8 +214,8 @@ bool wxStringImpl::AllocBuffer(size_t nLen)
   wxASSERT( nLen >  0 );
 
   // make sure that we don't overflow
-  wxASSERT( nLen < (INT_MAX / sizeof(wxStringCharType)) -
-                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );
+  wxCHECK( nLen < (INT_MAX / sizeof(wxStringCharType)) -
+                  (sizeof(wxStringData) + EXTRA_ALLOC + 1), false );
 
   STATISTICS_ADD(Length, nLen);
 
@@ -339,6 +342,8 @@ bool wxStringImpl::Alloc(size_t nLen)
   wxStringData *pData = GetStringData();
   if ( pData->nAllocLength <= nLen ) {
     if ( pData->IsEmpty() ) {
+      STATISTICS_ADD(Length, nLen);
+
       nLen += EXTRA_ALLOC;
 
       pData = (wxStringData *)
@@ -584,7 +589,7 @@ wxStringImpl& wxStringImpl::replace(size_t nStart, size_t nLen,
     wxASSERT_MSG( nStart <= lenOld,
                   _T("index out of bounds in wxStringImpl::replace") );
     size_t nEnd = nStart + nLen;
-    if ( nEnd > lenOld )
+    if ( nLen > lenOld - nStart )
     {
         // nLen may be out of range, as it can be npos, just clump it down
         nLen = lenOld - nStart;