don't call CopyBeforeWrite when returning non-const interator if the string is empty...

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

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 9b1de655cd4fd2f4a483506675861972b2383b8b..70473982fdcaec8055814ff41f2174964001c95a 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -407,6 +407,20 @@ bool wxStringBase::Alloc(size_t nLen)
   //else: we've already got enough
   return TRUE;
 }
+  
+wxStringBase::iterator wxStringBase::begin()
+{
+    if (length() > 0)
+        CopyBeforeWrite();
+    return m_pchData;
+}
+
+wxStringBase::iterator wxStringBase::end()
+{
+    if (length() > 0)
+        CopyBeforeWrite();
+    return m_pchData + length();
+}
 
 wxStringBase::iterator wxStringBase::erase(iterator it)
 {