ODBC compile (and link) fixes

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

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 3031ae6dafe7ccde81f696a18e5b88d89a8285dc..c2246e499151cd7ba6d47598d0a95dea457f9c10 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -6,7 +6,7 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:    wxWindows license
+// Licence:     wxWindows license

 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__


@@ -44,6 +44,10 @@
   IMPLEMENT_DYNAMIC_CLASS(wxString, wxObject)
 #endif  //WXSTRING_IS_WXOBJECT
 
   IMPLEMENT_DYNAMIC_CLASS(wxString, wxObject)
 #endif  //WXSTRING_IS_WXOBJECT
 

+// allocating extra space for each string consumes more memory but speeds up
+// the concatenation operations (nLen is the current string's length)
+#define EXTRA_ALLOC       16
+

 // ---------------------------------------------------------------------------
 // static class variables definition
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // static class variables definition
 // ---------------------------------------------------------------------------


@@ -52,9 +56,9 @@
   const size_t wxString::npos = STRING_MAXLEN;
 #endif
 
   const size_t wxString::npos = STRING_MAXLEN;
 #endif
 

-// ===========================================================================
-// static class data, special inlines
-// ===========================================================================
+// ----------------------------------------------------------------------------
+// static data
+// ----------------------------------------------------------------------------

 
 // for an empty string, GetStringData() will return this address
 static int g_strEmpty[] = { -1,     // ref count (locked)
 
 // for an empty string, GetStringData() will return this address
 static int g_strEmpty[] = { -1,     // ref count (locked)


@@ -64,9 +68,9 @@ static int g_strEmpty[] = { -1,     // ref count (locked)
 // empty C style string: points to 'string data' byte of g_strEmpty
 extern const char *g_szNul = (const char *)(&g_strEmpty[3]);
 
 // empty C style string: points to 'string data' byte of g_strEmpty
 extern const char *g_szNul = (const char *)(&g_strEmpty[3]);
 

-// ===========================================================================
+// ----------------------------------------------------------------------------

 // global functions
 // global functions

-// ===========================================================================
+// ----------------------------------------------------------------------------

 
 #ifdef  STD_STRING_COMPATIBILITY
 
 
 #ifdef  STD_STRING_COMPATIBILITY
 


@@ -99,7 +103,7 @@ NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
         sb->sungetc();
         break;
       }
         sb->sungetc();
         break;
       }

-      
+

       str += ch;
       if ( --w == 1 )
         break;
       str += ch;
       if ( --w == 1 )
         break;


@@ -115,6 +119,35 @@ NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
 
 #endif  //std::string compatibility
 
 
 #endif  //std::string compatibility
 

+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+
+// this small class is used to gather statistics for performance tuning
+//#define WXSTRING_STATISTICS
+#ifdef  WXSTRING_STATISTICS
+  class Averager
+  {
+  public:
+    Averager(const char *sz) { m_sz = sz; m_nTotal = m_nCount = 0; }
+   ~Averager() 
+   { printf("wxString: average %s = %f\n", m_sz, ((float)m_nTotal)/m_nCount); }
+
+    void Add(uint n) { m_nTotal += n; m_nCount++; }
+
+  private:
+    uint m_nCount, m_nTotal;
+    const char *m_sz;
+  } g_averageLength("allocation size"),
+    g_averageSummandLength("summand length"),
+    g_averageConcatHit("hit probability in concat"),
+    g_averageInitialLength("initial string length");
+
+  #define STATISTICS_ADD(av, val) g_average##av.Add(val)
+#else
+  #define STATISTICS_ADD(av, val)
+#endif // WXSTRING_STATISTICS
+

 // ===========================================================================
 // wxString class core
 // ===========================================================================
 // ===========================================================================
 // wxString class core
 // ===========================================================================


@@ -123,27 +156,6 @@ NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
 // construction
 // ---------------------------------------------------------------------------
 
 // construction
 // ---------------------------------------------------------------------------
 

-// construct an empty string
-wxString::wxString()
-{
-  Init();
-}
-
-// copy constructor
-wxString::wxString(const wxString& stringSrc)
-{
-  wxASSERT( stringSrc.GetStringData()->IsValid() );
-
-  if ( stringSrc.IsEmpty() ) {
-    // nothing to do for an empty string
-    Init();
-  }
-  else {
-    m_pchData = stringSrc.m_pchData;            // share same data
-    GetStringData()->Lock();                    // => one more copy
-  }
-}
-

 // constructs string of <nLength> copies of character <ch>
 wxString::wxString(char ch, size_t nLength)
 {
 // constructs string of <nLength> copies of character <ch>
 wxString::wxString(char ch, size_t nLength)
 {


@@ -168,40 +180,27 @@ void wxString::InitWith(const char *psz, size_t nPos, size_t nLength)
   if ( nLength == STRING_MAXLEN )
     nLength = Strlen(psz + nPos);
 
   if ( nLength == STRING_MAXLEN )
     nLength = Strlen(psz + nPos);
 

+  STATISTICS_ADD(InitialLength, nLength);
+

   if ( nLength > 0 ) {
     // trailing '\0' is written in AllocBuffer()
     AllocBuffer(nLength);
     memcpy(m_pchData, psz + nPos, nLength*sizeof(char));
   }
 }
   if ( nLength > 0 ) {
     // trailing '\0' is written in AllocBuffer()
     AllocBuffer(nLength);
     memcpy(m_pchData, psz + nPos, nLength*sizeof(char));
   }
 }

-        
-// take first nLength characters of C string psz
-// (default value of STRING_MAXLEN means take all the string)
-wxString::wxString(const char *psz, size_t nLength)
-{
-  InitWith(psz, 0, nLength);
-}

 
 // the same as previous constructor, but for compilers using unsigned char
 wxString::wxString(const unsigned char* psz, size_t nLength)
 {
   InitWith((const char *)psz, 0, nLength);
 
 // the same as previous constructor, but for compilers using unsigned char
 wxString::wxString(const unsigned char* psz, size_t nLength)
 {
   InitWith((const char *)psz, 0, nLength);

-} 
- 
-#ifdef  STD_STRING_COMPATIBILITY
-
-// ctor from a substring
-wxString::wxString(const wxString& str, size_t nPos, size_t nLen)
-{
-  wxASSERT( str.GetStringData()->IsValid() );
-
-  InitWith(str.c_str(), nPos, nLen == npos ? 0 : nLen);

 }
 
 }
 

+#ifdef  STD_STRING_COMPATIBILITY
+

 // poor man's iterators are "void *" pointers
 wxString::wxString(const void *pStart, const void *pEnd)
 {
 // poor man's iterators are "void *" pointers
 wxString::wxString(const void *pStart, const void *pEnd)
 {

-  InitWith((const char *)pStart, 0, 
+  InitWith((const char *)pStart, 0,

            (const char *)pEnd - (const char *)pStart);
 }
 
            (const char *)pEnd - (const char *)pStart);
 }
 


@@ -233,33 +232,18 @@ void wxString::AllocBuffer(size_t nLen)
   wxASSERT( nLen >  0         );    //
   wxASSERT( nLen <= INT_MAX-1 );    // max size (enough room for 1 extra)
 
   wxASSERT( nLen >  0         );    //
   wxASSERT( nLen <= INT_MAX-1 );    // max size (enough room for 1 extra)
 

+  STATISTICS_ADD(Length, nLen);
+

   // allocate memory:
   // 1) one extra character for '\0' termination
   // 2) sizeof(wxStringData) for housekeeping info
   // allocate memory:
   // 1) one extra character for '\0' termination
   // 2) sizeof(wxStringData) for housekeeping info

-  wxStringData* pData = (wxStringData*)new char[sizeof(wxStringData) +
-                                                (nLen + 1)*sizeof(char)];
+  wxStringData* pData = (wxStringData*)
+    malloc(sizeof(wxStringData) + (nLen + EXTRA_ALLOC + 1)*sizeof(char));

   pData->nRefs        = 1;
   pData->nRefs        = 1;

-  pData->data()[nLen] = '\0';

   pData->nDataLength  = nLen;
   pData->nDataLength  = nLen;

-  pData->nAllocLength = nLen;
+  pData->nAllocLength = nLen + EXTRA_ALLOC;

   m_pchData           = pData->data();  // data starts after wxStringData
   m_pchData           = pData->data();  // data starts after wxStringData

-}
-
-// releases the string memory and reinits it
-void wxString::Reinit()
-{
-  GetStringData()->Unlock();
-  Init();
-}
-
-// wrapper around wxString::Reinit
-void wxString::Empty()
-{
-  if ( GetStringData()->nDataLength != 0 )
-    Reinit();
-
-  wxASSERT( GetStringData()->nDataLength == 0 );
-  wxASSERT( GetStringData()->nAllocLength == 0 );
+  m_pchData[nLen]     = '\0';

 }
 
 // must be called before changing this string
 }
 
 // must be called before changing this string


@@ -269,8 +253,9 @@ void wxString::CopyBeforeWrite()
 
   if ( pData->IsShared() ) {
     pData->Unlock();                // memory not freed because shared
 
   if ( pData->IsShared() ) {
     pData->Unlock();                // memory not freed because shared

-    AllocBuffer(pData->nDataLength);
-    memcpy(m_pchData, pData->data(), (pData->nDataLength + 1)*sizeof(char));
+    uint nLen = pData->nDataLength;
+    AllocBuffer(nLen);
+    memcpy(m_pchData, pData->data(), nLen*sizeof(char));

   }
 
   wxASSERT( !pData->IsShared() );  // we must be the only owner
   }
 
   wxASSERT( !pData->IsShared() );  // we must be the only owner


@@ -282,7 +267,7 @@ void wxString::AllocBeforeWrite(size_t nLen)
   wxASSERT( nLen != 0 );  // doesn't make any sense
 
   // must not share string and must have enough space
   wxASSERT( nLen != 0 );  // doesn't make any sense
 
   // must not share string and must have enough space

-  register wxStringData* pData = GetStringData();
+  wxStringData* pData = GetStringData();

   if ( pData->IsShared() || (nLen > pData->nAllocLength) ) {
     // can't work with old buffer, get new one
     pData->Unlock();
   if ( pData->IsShared() || (nLen > pData->nAllocLength) ) {
     // can't work with old buffer, get new one
     pData->Unlock();


@@ -292,8 +277,51 @@ void wxString::AllocBeforeWrite(size_t nLen)
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
 }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
 }
 

+// allocate enough memory for nLen characters
+void wxString::Alloc(uint nLen)
+{
+  wxStringData *pData = GetStringData();
+  if ( pData->nAllocLength <= nLen ) {
+    if ( pData->IsEmpty() )
+      AllocBuffer(nLen);
+    else if ( pData->IsShared() ) {
+      pData->Unlock();                // memory not freed because shared
+      uint nLen = pData->nDataLength;
+      AllocBuffer(nLen);
+      memcpy(m_pchData, pData->data(), nLen*sizeof(char));
+    }
+    else {
+      nLen += EXTRA_ALLOC;
+
+      wxStringData *p = (wxStringData *)
+        realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(char));
+
+      if ( p == NULL ) {
+        // @@@ what to do on memory error?
+        return;
+      }
+
+      // it's not important if the pointer changed or not (the check for this
+      // is not faster than assigning to m_pchData in all cases)
+      p->nAllocLength = nLen;
+      m_pchData = p->data();
+    }
+  }
+  //else: we've already got enough
+}
+
+// shrink to minimal size (releasing extra memory)
+void wxString::Shrink()
+{
+  wxStringData *pData = GetStringData();
+  void *p = realloc(pData, sizeof(wxStringData) +
+                    (pData->nDataLength + 1)*sizeof(char));
+  wxASSERT( p != NULL );  // can't free memory?
+  wxASSERT( p == pData ); // we're decrementing the size - block shouldn't move!
+}
+

 // get the pointer to writable buffer of (at least) nLen bytes
 // get the pointer to writable buffer of (at least) nLen bytes

-char *wxString::GetWriteBuf(int nLen)
+char *wxString::GetWriteBuf(uint nLen)

 {
   AllocBeforeWrite(nLen);
 
 {
   AllocBeforeWrite(nLen);
 


@@ -310,12 +338,6 @@ void wxString::UngetWriteBuf()
   GetStringData()->Validate(TRUE);
 }
 
   GetStringData()->Validate(TRUE);
 }
 

-// dtor frees memory if no other strings use it
-wxString::~wxString()
-{
-  GetStringData()->Unlock();
-}
-

 // ---------------------------------------------------------------------------
 // data access
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // data access
 // ---------------------------------------------------------------------------


@@ -326,7 +348,7 @@ wxString::~wxString()
 // assignment operators
 // ---------------------------------------------------------------------------
 
 // assignment operators
 // ---------------------------------------------------------------------------
 

-// helper function: does real copy 
+// helper function: does real copy

 void wxString::AssignCopy(size_t nSrcLen, const char *pszSrcData)
 {
   if ( nSrcLen == 0 ) {
 void wxString::AssignCopy(size_t nSrcLen, const char *pszSrcData)
 {
   if ( nSrcLen == 0 ) {


@@ -393,95 +415,51 @@ wxString& wxString::operator=(const wchar_t *pwz)
 // string concatenation
 // ---------------------------------------------------------------------------
 
 // string concatenation
 // ---------------------------------------------------------------------------
 

-// concatenate two sources
-// NB: assume that 'this' is a new wxString object
-void wxString::ConcatCopy(int nSrc1Len, const char *pszSrc1Data,
-                        int nSrc2Len, const char *pszSrc2Data)
-{
-  int nNewLen = nSrc1Len + nSrc2Len;
-  if ( nNewLen != 0 )
-  {
-    AllocBuffer(nNewLen);
-    memcpy(m_pchData, pszSrc1Data, nSrc1Len*sizeof(char));
-    memcpy(m_pchData + nSrc1Len, pszSrc2Data, nSrc2Len*sizeof(char));
-  }
-}
-

 // add something to this string
 void wxString::ConcatSelf(int nSrcLen, const char *pszSrcData)
 {
 // add something to this string
 void wxString::ConcatSelf(int nSrcLen, const char *pszSrcData)
 {

-  // concatenating an empty string is a NOP
-  if ( nSrcLen != 0 ) {
-    register wxStringData *pData = GetStringData();
-
-    // alloc new buffer if current is too small
-    if ( pData->IsShared() || 
-         pData->nDataLength + nSrcLen > pData->nAllocLength ) {
-      // we have to grow the buffer, use the ConcatCopy routine
-      // (which will allocate memory)
-      wxStringData* pOldData = GetStringData();
-      ConcatCopy(pOldData->nDataLength, m_pchData, nSrcLen, pszSrcData);
-      pOldData->Unlock();
-    }
-    else {
-      // fast concatenation when buffer big enough
-      memcpy(m_pchData + pData->nDataLength, pszSrcData, nSrcLen*sizeof(char));
-      pData->nDataLength += nSrcLen;
+  STATISTICS_ADD(SummandLength, nSrcLen);

 
 

-      // should be enough space
-      wxASSERT( pData->nDataLength <= pData->nAllocLength );
+  // concatenating an empty string is a NOP, but it happens quite rarely,
+  // so we don't waste our time checking for it
+  // if ( nSrcLen > 0 )
+  wxStringData *pData = GetStringData();
+  uint nLen = pData->nDataLength;
+  uint nNewLen = nLen + nSrcLen;

 
 

-      m_pchData[pData->nDataLength] = '\0';   // put terminating '\0'
-    }
+  // alloc new buffer if current is too small
+  if ( pData->IsShared() ) {
+    STATISTICS_ADD(ConcatHit, 0);
+
+    // we have to allocate another buffer
+    wxStringData* pOldData = GetStringData();
+    AllocBuffer(nNewLen);
+    memcpy(m_pchData, pOldData->data(), nLen*sizeof(char));
+    pOldData->Unlock();

   }
   }

-}
+  else if ( nNewLen > pData->nAllocLength ) {
+    STATISTICS_ADD(ConcatHit, 0);

 
 

-/*
- * string may be concatenated with other string, C string or a character
- */
+    // we have to grow the buffer
+    Alloc(nNewLen);
+  }
+  else {
+    STATISTICS_ADD(ConcatHit, 1);

 
 

-void wxString::operator+=(const wxString& string)
-{
-  wxASSERT( string.GetStringData()->IsValid() );
+    // the buffer is already big enough
+  }

 
 

-  ConcatSelf(string.Len(), string);
-}
+  // should be enough space
+  wxASSERT( nNewLen <= GetStringData()->nAllocLength );

 
 

-void wxString::operator+=(const char *psz)
-{
-  ConcatSelf(Strlen(psz), psz);
-}
+  // fast concatenation - all is done in our buffer
+  memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(char));

 
 

-void wxString::operator+=(char ch)
-{
-  ConcatSelf(1, &ch);
+  m_pchData[nNewLen] = '\0';              // put terminating '\0'
+  GetStringData()->nDataLength = nNewLen; // and fix the length

 }
 
 /*
 }
 
 /*

- * Same as above but return the result
- */  
-
-wxString& wxString::operator<<(const wxString& string)
-{
-  wxASSERT( string.GetStringData()->IsValid() );
-
-  ConcatSelf(string.Len(), string);
-  return *this;
-}
-
-wxString& wxString::operator<<(const char *psz)
-{
-  ConcatSelf(Strlen(psz), psz);
-  return *this;
-}
-
-wxString& wxString::operator<<(char ch)
-{
-  ConcatSelf(1, &ch);
-  return *this;
-}
-
-/* 

  * concatenation functions come in 5 flavours:
  *  string + string
  *  char   + string      and      string + char
  * concatenation functions come in 5 flavours:
  *  string + string
  *  char   + string      and      string + char


@@ -493,18 +471,19 @@ wxString operator+(const wxString& string1, const wxString& string2)
   wxASSERT( string1.GetStringData()->IsValid() );
   wxASSERT( string2.GetStringData()->IsValid() );
 
   wxASSERT( string1.GetStringData()->IsValid() );
   wxASSERT( string2.GetStringData()->IsValid() );
 

-  wxString s;
-  s.ConcatCopy(string1.GetStringData()->nDataLength, string1.m_pchData,
-               string2.GetStringData()->nDataLength, string2.m_pchData);
+  wxString s = string1;
+  s += string2;
+

   return s;
 }
 
   return s;
 }
 

-wxString operator+(const wxString& string1, char ch)
+wxString operator+(const wxString& string, char ch)

 {
 {

-  wxASSERT( string1.GetStringData()->IsValid() );
+  wxASSERT( string.GetStringData()->IsValid() );
+
+  wxString s = string;
+  s += ch;

 
 

-  wxString s;
-  s.ConcatCopy(string1.GetStringData()->nDataLength, string1.m_pchData, 1, &ch);

   return s;
 }
 
   return s;
 }
 


@@ -512,8 +491,9 @@ wxString operator+(char ch, const wxString& string)
 {
   wxASSERT( string.GetStringData()->IsValid() );
 
 {
   wxASSERT( string.GetStringData()->IsValid() );
 

-  wxString s;
-  s.ConcatCopy(1, &ch, string.GetStringData()->nDataLength, string.m_pchData);
+  wxString s = ch;
+  s += string;
+

   return s;
 }
 
   return s;
 }
 


@@ -522,8 +502,10 @@ wxString operator+(const wxString& string, const char *psz)
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;

-  s.ConcatCopy(string.GetStringData()->nDataLength, string.m_pchData,
-               Strlen(psz), psz);
+  s.Alloc(Strlen(psz) + string.Len());
+  s = string;
+  s += psz;
+

   return s;
 }
 
   return s;
 }
 


@@ -532,8 +514,10 @@ wxString operator+(const char *psz, const wxString& string)
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;

-  s.ConcatCopy(Strlen(psz), psz,
-               string.GetStringData()->nDataLength, string.m_pchData);
+  s.Alloc(Strlen(psz) + string.Len());
+  s = psz;
+  s += string;
+

   return s;
 }
 
   return s;
 }
 


@@ -548,12 +532,10 @@ wxString operator+(const char *psz, const wxString& string)
 // helper function: clone the data attached to this string
 void wxString::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const
 {
 // helper function: clone the data attached to this string
 void wxString::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const
 {

-  if ( nCopyLen == 0 )
-  {
+  if ( nCopyLen == 0 ) {

     dest.Init();
   }
     dest.Init();
   }

-  else
-  {
+  else {

     dest.AllocBuffer(nCopyLen);
     memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(char));
   }
     dest.AllocBuffer(nCopyLen);
     memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(char));
   }


@@ -657,7 +639,7 @@ uint wxString::Replace(const char *szOld, const char *szNew, bool bReplaceAll)
 
   wxString strTemp;
   const char *pCurrent = m_pchData;
 
   wxString strTemp;
   const char *pCurrent = m_pchData;

-  const char *pSubstr;           
+  const char *pSubstr;

   while ( *pCurrent != '\0' ) {
     pSubstr = strstr(pCurrent, szOld);
     if ( pSubstr == NULL ) {
   while ( *pCurrent != '\0' ) {
     pSubstr = strstr(pCurrent, szOld);
     if ( pSubstr == NULL ) {


@@ -699,7 +681,7 @@ bool wxString::IsAscii() const
   }
   return(TRUE);
 }
   }
   return(TRUE);
 }

-  
+

 bool wxString::IsWord() const
 {
   const char *s = (const char*) *this;
 bool wxString::IsWord() const
 {
   const char *s = (const char*) *this;


@@ -709,7 +691,7 @@ bool wxString::IsWord() const
   }
   return(TRUE);
 }
   }
   return(TRUE);
 }

-  
+

 bool wxString::IsNumber() const
 {
   const char *s = (const char*) *this;
 bool wxString::IsNumber() const
 {
   const char *s = (const char*) *this;


@@ -720,10 +702,6 @@ bool wxString::IsNumber() const
   return(TRUE);
 }
 
   return(TRUE);
 }
 

-// kludge: we don't have declaraton of wxStringData here, so we add offsets
-//         manually to get to the "length" field of wxStringData structure
-bool   wxString::IsEmpty() const  { return Len() == 0;                        }
-

 wxString wxString::Strip(stripType w) const
 {
     wxString s = *this;
 wxString wxString::Strip(stripType w) const
 {
     wxString s = *this;


@@ -732,33 +710,6 @@ wxString wxString::Strip(stripType w) const
     return s;
 }
 
     return s;
 }
 

-/// case-insensitive strcmp() (platform independent)
-int Stricmp(const char *psz1, const char *psz2)
-{
-#if     defined(_MSC_VER)
-  return _stricmp(psz1, psz2);
-#elif defined(__BORLANDC__)
-  return stricmp(psz1, psz2);
-#elif   defined(__UNIX__) || defined(__GNUWIN32__)
-  return strcasecmp(psz1, psz2);
-#else
-  // almost all compilers/libraries provide this function (unfortunately under
-  // different names), that's why we don't implement our own which will surely
-  // be more efficient than this code (uncomment to use):
-  /*
-    register char c1, c2;
-    do {
-      c1 = tolower(*psz1++);
-      c2 = tolower(*psz2++);
-    } while ( c1 && (c1 == c2) );
-
-    return c1 - c2;
-  */
-  
-  #error  "Please define string case-insensitive compare for your OS/compiler"
-#endif  // OS/compiler
-}
-

 // ---------------------------------------------------------------------------
 // case conversion
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // case conversion
 // ---------------------------------------------------------------------------


@@ -776,7 +727,7 @@ wxString& wxString::MakeUpper()
 wxString& wxString::MakeLower()
 {
   CopyBeforeWrite();
 wxString& wxString::MakeLower()
 {
   CopyBeforeWrite();

-  
+

   for ( char *p = m_pchData; *p; p++ )
     *p = (char)tolower(*p);
 
   for ( char *p = m_pchData; *p; p++ )
     *p = (char)tolower(*p);
 


@@ -890,30 +841,6 @@ int wxString::PrintfV(const char* pszFormat, va_list argptr)
   return iLen;
 }
 
   return iLen;
 }
 

-#if 0
-int wxString::Scanf(const char *pszFormat, ...) const
-{
-  va_list argptr;
-  va_start(argptr, pszFormat);
-
-  int iLen = ScanfV(pszFormat, argptr);
-
-  va_end(argptr);
-
-  return iLen;
-}
-
-int wxString::ScanfV(const char *pszFormat, va_list argptr) const
-{
-#ifdef __WXMSW__
-  wxMessageBox("ScanfV not implemented");
-  return 0;
-#else
-  return vsscanf(c_str(), pszFormat, argptr);
-#endif
-}
-#endif
-

 // ----------------------------------------------------------------------------
 // misc other operations
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // misc other operations
 // ----------------------------------------------------------------------------


@@ -993,8 +920,8 @@ wxString& wxString::insert(size_t nPos, const wxString& str)
   strcpy(pc + nPos + str.Len(), c_str() + nPos);
   strTmp.UngetWriteBuf();
   *this = strTmp;
   strcpy(pc + nPos + str.Len(), c_str() + nPos);
   strTmp.UngetWriteBuf();
   *this = strTmp;

-    
-  return *this; 
+
+  return *this;

 }
 
 size_t wxString::find(const wxString& str, size_t nStart) const
 }
 
 size_t wxString::find(const wxString& str, size_t nStart) const


@@ -1003,7 +930,7 @@ size_t wxString::find(const wxString& str, size_t nStart) const
   wxASSERT( nStart <= Len() );
 
   const char *p = strstr(c_str() + nStart, str);
   wxASSERT( nStart <= Len() );
 
   const char *p = strstr(c_str() + nStart, str);

-  
+

   return p == NULL ? npos : p - c_str();
 }
 
   return p == NULL ? npos : p - c_str();
 }
 


@@ -1014,13 +941,13 @@ size_t wxString::find(const char* sz, size_t nStart, size_t n) const
   return find(wxString(sz, n == npos ? 0 : n), nStart);
 }
 #endif
   return find(wxString(sz, n == npos ? 0 : n), nStart);
 }
 #endif

-        
+

 size_t wxString::find(char ch, size_t nStart) const
 {
   wxASSERT( nStart <= Len() );
 
   const char *p = strchr(c_str() + nStart, ch);
 size_t wxString::find(char ch, size_t nStart) const
 {
   wxASSERT( nStart <= Len() );
 
   const char *p = strchr(c_str() + nStart, ch);

-  
+

   return p == NULL ? npos : p - c_str();
 }
 
   return p == NULL ? npos : p - c_str();
 }
 


@@ -1036,10 +963,10 @@ size_t wxString::rfind(const wxString& str, size_t nStart) const
       return p - str.Len() - c_str();
     p--;
   }
       return p - str.Len() - c_str();
     p--;
   }

-  
+

   return npos;
 }
   return npos;
 }

-        
+

 // VC++ 1.5 can't cope with the default argument in the header.
 #if ! (defined(_MSC_VER) && !defined(__WIN32__))
 size_t wxString::rfind(const char* sz, size_t nStart, size_t n) const
 // VC++ 1.5 can't cope with the default argument in the header.
 #if ! (defined(_MSC_VER) && !defined(__WIN32__))
 size_t wxString::rfind(const char* sz, size_t nStart, size_t n) const


@@ -1052,7 +979,7 @@ size_t wxString::rfind(char ch, size_t nStart) const
   wxASSERT( nStart <= Len() );
 
   const char *p = strrchr(c_str() + nStart, ch);
   wxASSERT( nStart <= Len() );
 
   const char *p = strrchr(c_str() + nStart, ch);

-  
+

   return p == NULL ? npos : p - c_str();
 }
 #endif
   return p == NULL ? npos : p - c_str();
 }
 #endif


@@ -1090,7 +1017,7 @@ wxString& wxString::replace(size_t nStart, size_t nLen, const char *sz)
     strTmp.append(c_str(), nStart);
   strTmp += sz;
   strTmp.append(c_str() + nStart + nLen);
     strTmp.append(c_str(), nStart);
   strTmp += sz;
   strTmp.append(c_str() + nStart + nLen);

-  
+

   *this = strTmp;
   return *this;
 }
   *this = strTmp;
   return *this;
 }


@@ -1100,13 +1027,13 @@ wxString& wxString::replace(size_t nStart, size_t nLen, size_t nCount, char ch)
   return replace(nStart, nLen, wxString(ch, nCount));
 }
 
   return replace(nStart, nLen, wxString(ch, nCount));
 }
 

-wxString& wxString::replace(size_t nStart, size_t nLen, 
+wxString& wxString::replace(size_t nStart, size_t nLen,

                             const wxString& str, size_t nStart2, size_t nLen2)
 {
   return replace(nStart, nLen, str.substr(nStart2, nLen2));
 }
 
                             const wxString& str, size_t nStart2, size_t nLen2)
 {
   return replace(nStart, nLen, str.substr(nStart2, nLen2));
 }
 

-wxString& wxString::replace(size_t nStart, size_t nLen, 
+wxString& wxString::replace(size_t nStart, size_t nLen,

                         const char* sz, size_t nCount)
 {
   return replace(nStart, nLen, wxString(sz, nCount));
                         const char* sz, size_t nCount)
 {
   return replace(nStart, nLen, wxString(sz, nCount));


@@ -1158,7 +1085,7 @@ wxArrayString& wxArrayString::operator=(const wxArrayString& src)
   m_nCount = src.m_nCount;
 
   if ( m_nSize != 0 )
   m_nCount = src.m_nCount;
 
   if ( m_nSize != 0 )

-    m_pItems = new char *[m_nSize];
+    m_pItems = new char *[m_nCount];

   else
     m_pItems = NULL;
 
   else
     m_pItems = NULL;
 


@@ -1217,7 +1144,7 @@ void wxArrayString::Clear()
 {
   Free();
 
 {
   Free();
 

-  m_nSize  = 
+  m_nSize  =

   m_nCount = 0;
 
   DELETEA(m_pItems);
   m_nCount = 0;
 
   DELETEA(m_pItems);


@@ -1249,9 +1176,6 @@ void wxArrayString::Alloc(size_t nSize)
 }
 
 // searches the array for an item (forward or backwards)
 }
 
 // searches the array for an item (forward or backwards)

-
-// Robert Roebling (changed to bool from bool)
-

 int wxArrayString::Index(const char *sz, bool bCase, bool bFromEnd) const
 {
   if ( bFromEnd ) {
 int wxArrayString::Index(const char *sz, bool bCase, bool bFromEnd) const
 {
   if ( bFromEnd ) {


@@ -1295,7 +1219,7 @@ void wxArrayString::Insert(const wxString& str, size_t nIndex)
 
   Grow();
 
 
   Grow();
 

-  memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex], 
+  memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex],

           (m_nCount - nIndex)*sizeof(char *));
 
   str.GetStringData()->Lock();
           (m_nCount - nIndex)*sizeof(char *));
 
   str.GetStringData()->Lock();


@@ -1312,7 +1236,7 @@ void wxArrayString::Remove(size_t nIndex)
   // release our lock
   Item(nIndex).GetStringData()->Unlock();
 
   // release our lock
   Item(nIndex).GetStringData()->Unlock();
 

-  memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1], 
+  memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1],

           (m_nCount - nIndex - 1)*sizeof(char *));
   m_nCount--;
 }
           (m_nCount - nIndex - 1)*sizeof(char *));
   m_nCount--;
 }