Warning fixes, source cleaning.

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

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 0eae6299c973bd7dae141f2e55919ca3363a942e..6b21ca1b09588be2a81743b63c5c93ffc86c5c07 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -56,14 +56,9 @@
 // static class variables definition
 // ---------------------------------------------------------------------------
 
-#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
-// must define this static for VA or else you get multiply defined symbols
-// everywhere
-const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
-#endif // Visual Age
-
 #if !wxUSE_STL
-  const size_t wxStringBase::npos = wxSTRING_MAXLEN;
+  //According to STL _must_ be a -1 size_t
+  const size_t wxStringBase::npos = (size_t) -1;
 #endif
 
 // ----------------------------------------------------------------------------
@@ -209,7 +204,7 @@ void wxStringBase::InitWith(const wxChar *psz, size_t nPos, size_t nLength)
       wxFAIL_MSG( _T("out of memory in wxStringBase::InitWith") );
       return;
     }
-    wxMemcpy(m_pchData, psz + nPos, nLength);
+    wxTmemcpy(m_pchData, psz + nPos, nLength);
   }
 }
 
@@ -274,7 +269,7 @@ bool wxStringBase::CopyBeforeWrite()
       // allocation failures are handled by the caller
       return false;
     }
-    wxMemcpy(m_pchData, pData->data(), nLen);
+    wxTmemcpy(m_pchData, pData->data(), nLen);
   }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
@@ -476,7 +471,7 @@ size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const
   wxASSERT( nStart <= length() );
 
   //anchor
-  const wxChar* p = (const wxChar*)wxMemchr(c_str() + nStart,
+  const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart,
                                             str.c_str()[0],
                                             length() - nStart);
 
@@ -484,10 +479,10 @@ size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const
       return npos;
 
   while(p - c_str() + str.length() <= length() &&
-        wxMemcmp(p, str.c_str(), str.length()) )
+        wxTmemcmp(p, str.c_str(), str.length()) )
   {
       //anchor again
-      p = (const wxChar*)wxMemchr(++p,
+      p = (const wxChar*)wxTmemchr(++p,
                                   str.c_str()[0],
                                   length() - (p - c_str()));
 
@@ -507,7 +502,7 @@ size_t wxStringBase::find(wxChar ch, size_t nStart) const
 {
   wxASSERT( nStart <= length() );
 
-  const wxChar *p = (const wxChar*)wxMemchr(c_str() + nStart, ch, length() - nStart);
+  const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart);
 
   return p == NULL ? npos : p - c_str();
 }
@@ -534,7 +529,7 @@ size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const
         const wxChar *cursor = c_str() + top;
         do
         {
-            if ( wxMemcmp(cursor, str.c_str(),
+            if ( wxTmemcmp(cursor, str.c_str(),
                         str.length()) == 0 )
             {
                 return cursor - c_str();
@@ -581,7 +576,7 @@ size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart) const
     size_t i;
     for(i = nStart; i < this->length(); ++i)
     {
-        if (wxMemchr(sz, *(c_str() + i), len))
+        if (wxTmemchr(sz, *(c_str() + i), len))
             break;
     }
 
@@ -613,7 +608,7 @@ size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart) const
 
     for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
     {
-        if ( wxMemchr(sz, *p, len) )
+        if ( wxTmemchr(sz, *p, len) )
             return p - c_str();
     }
 
@@ -642,7 +637,7 @@ size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart) const
     size_t i;
     for(i = nStart; i < this->length(); ++i)
     {
-        if (!wxMemchr(sz, *(c_str() + i), len))
+        if (!wxTmemchr(sz, *(c_str() + i), len))
             break;
     }
 
@@ -686,7 +681,7 @@ size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart) const
 
     for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
     {
-        if ( !wxMemchr(sz, *p,len) )
+        if ( !wxTmemchr(sz, *p,len) )
              return p - c_str();
     }
 
@@ -916,20 +911,17 @@ static inline int wxDoCmp(const wxChar* s1, size_t l1,
                           const wxChar* s2, size_t l2)
 {
     if( l1 == l2 )
-        return wxMemcmp(s1, s2, l1);
+        return wxTmemcmp(s1, s2, l1);
     else if( l1 < l2 )
     {
-        int ret = wxMemcmp(s1, s2, l1);
+        int ret = wxTmemcmp(s1, s2, l1);
         return ret == 0 ? -1 : ret;
     }
-    else if( l1 > l2 )
+    else
     {
-        int ret = wxMemcmp(s1, s2, l2);
+        int ret = wxTmemcmp(s1, s2, l2);
         return ret == 0 ? +1 : ret;
     }
-
-    wxFAIL;   // must never get there
-    return 0; // quiet compilers
 }
 
 int STRINGCLASS::compare(const wxStringBase& str) const
@@ -1028,45 +1020,21 @@ wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength)
     // anything to do?
     if ( (nLen != 0) && (nLen != (size_t)-1) )
     {
-        //Get length of converted string
-        size_t dwConvLen = conv.MB2WC(NULL, psz, 0, nLen);
+        //Convert string
+        size_t nRealSize;
+        wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize);
 
-        //if valid, do the conversion
-        if (dwConvLen != (size_t) -1)
-        {
-            //Get internal buffer
-            wxStringBufferLength internalBuffer(*this, dwConvLen + 1);
-
-            //Do the actual conversion & Set the length of the buffer
-            internalBuffer.SetLength(
-                   conv.MB2WC(internalBuffer, psz, dwConvLen + 1, nLen)
-                                    );
-        }
+        //Copy 
+        if (nRealSize)
+            assign( theBuffer.data() , nRealSize - 1 );
     }
 }
 
 //Convert wxString in Unicode mode to a multi-byte string
 const wxCharBuffer wxString::mb_str(wxMBConv& conv) const
 {
-    //Get length of converted string
-    size_t dwConvLen = conv.WC2MB(NULL, (*this).c_str(), 0, length());
-
-    //if valid, do the conversion
-    if (dwConvLen != (size_t) -1)
-    {
-        //Create good buffer
-        wxCharBuffer buffer(dwConvLen + 1);
-
-        //Do the actual conversion
-        conv.WC2MB(buffer.data(), (*this).c_str(), dwConvLen + 1, length());
-
-        return buffer;
-    }
-
-    //create bogus buffer
-    wxCharBuffer buffer(1);
-    buffer.data()[0u] = 0;
-    return buffer;
+    size_t dwOutSize;
+    return conv.cWC2MB(c_str(), length(), &dwOutSize);
 }
 
 #else // ANSI
@@ -1108,20 +1076,13 @@ wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength)
     // anything to do?
     if ( (nLen != 0) && (nLen != (size_t)-1) )
     {
-        //Get length of converted string
-        size_t dwConvLen = conv.WC2MB(NULL, pwz, 0, nLen);
+        //Convert string
+        size_t nRealSize;
+        wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize);
 
-        //if valid, do the conversion
-        if (dwConvLen != (size_t) -1)
-        {
-            //Get internal buffer
-            wxStringBufferLength internalBuffer(*this, dwConvLen + 1);
-
-            //Do the actual conversion & Set the length of the buffer
-            internalBuffer.SetLength(
-                   conv.WC2MB(internalBuffer, pwz, dwConvLen + 1, nLen)
-                                    );
-        }
+        //Copy 
+        if (nRealSize)
+            assign( theBuffer.data() , nRealSize - 1 );
     }
 }
 
@@ -1129,25 +1090,8 @@ wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength)
 //mode is not enabled and wxUSE_WCHAR_T is enabled
 const wxWCharBuffer wxString::wc_str(wxMBConv& conv) const
 {
-    //Get length of converted string
-    size_t dwConvLen = conv.MB2WC(NULL, (*this).c_str(), 0, length());
-
-    //if valid, do the conversion
-    if (dwConvLen != (size_t) -1)
-    {
-        //Create good buffer
-        wxWCharBuffer buffer(dwConvLen + 1);
-
-        //Do the actual conversion
-        conv.MB2WC(buffer.data(), (*this).c_str(), dwConvLen + 1, length());
-
-        return buffer;
-    }
-
-    //create bogus buffer
-    wxWCharBuffer buffer(1);
-    buffer.data()[0u] = 0;
-    return buffer;
+    size_t dwOutSize;
+    return conv.cMB2WC(c_str(), length(), &dwOutSize);
 }
 
 #endif // wxUSE_WCHAR_T
@@ -1334,7 +1278,7 @@ static inline int wxDoCmpNoCase(const wxChar* s1, size_t l1,
         }
         return i == l1 ? -1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
     }
-    else if( l1 > l2 )
+    else
     {
         for(i = 0; i < l2; ++i)
         {
@@ -1343,9 +1287,6 @@ static inline int wxDoCmpNoCase(const wxChar* s1, size_t l1,
         }
         return i == l2 ? 1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
     }
-
-    wxFAIL;   // must never get there
-    return 0; // quiet compilers
 }
 
 int wxString::CmpNoCase(const wxString& s) const