fix heap corruption bug: use delete[] to delete a buffer allocated with new[], not delete

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@54615 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/ipcbase.cpp

@@ -61,8 +61,8 @@ wxConnectionBase::wxConnectionBase(const wxConnectionBase& copy)
 
 wxConnectionBase::~wxConnectionBase(void)
 {
-  if ( m_deletebufferwhendone && m_buffer )
-   delete m_buffer;
+  if ( m_deletebufferwhendone )
+   delete [] m_buffer;
 }
 
 wxChar *wxConnectionBase::GetBufferAtLeast( size_t bytes )
@@ -73,8 +73,7 @@ wxChar *wxConnectionBase::GetBufferAtLeast( size_t bytes )
   {  // need to resize buffer
     if ( m_deletebufferwhendone )
     { // we're in charge of buffer, increase it
-      if ( m_buffer )
-        delete m_buffer;
+      delete [] m_buffer;
       // the argument specifies **byte size**, but m_buffer is of type
       // wxChar. Under unicode: sizeof(wxChar) > 1, so the buffer size is
       // bytes / sizeof(wxChar) rounded upwards.