X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b5dbe15d0bacde245539f54c4d97af6b4696f01f..f8b1df0b15f843b8f47efb9bee38f1de0fa95020:/include/wx/buffer.h

diff --git a/include/wx/buffer.h b/include/wx/buffer.h
index 3d7d6403f6..d06fbf6fc1 100644
--- a/include/wx/buffer.h
+++ b/include/wx/buffer.h
@@ -25,7 +25,7 @@ class WXDLLIMPEXP_FWD_BASE wxCStrData;
 // ----------------------------------------------------------------------------
 
 template <typename T>
-class wxCharTypeBuffer
+class WXDLLIMPEXP_BASE wxCharTypeBuffer
 {
 public:
     typedef T CharType;
@@ -105,9 +105,12 @@ public:
 
     wxCharTypeBuffer& operator=(const wxCharTypeBuffer& src)
     {
-        if ( m_owned )
-            free(m_str);
-        CopyFrom(src);
+        if (&src != this)
+        {
+            if ( m_owned )
+                free(m_str);
+            CopyFrom(src);
+        }
         return *this;
     }
 
@@ -150,7 +153,9 @@ private:
     bool m_owned;
 };
 
-class wxCharBuffer : public wxCharTypeBuffer<char>
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxCharTypeBuffer<char> )
+
+class WXDLLIMPEXP_BASE wxCharBuffer : public wxCharTypeBuffer<char>
 {
 public:
     typedef wxCharTypeBuffer<char> wxCharTypeBufferBase;
@@ -165,7 +170,9 @@ public:
 };
 
 #if wxUSE_WCHAR_T
-class wxWCharBuffer : public wxCharTypeBuffer<wchar_t>
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxCharTypeBuffer<wchar_t> )
+
+class WXDLLIMPEXP_BASE wxWCharBuffer : public wxCharTypeBuffer<wchar_t>
 {
 public:
     typedef wxCharTypeBuffer<wchar_t> wxCharTypeBufferBase;
@@ -222,6 +229,13 @@ typedef wxWritableCharTypeBuffer<wchar_t> wxWritableWCharBuffer;
     #define wxWX2WCbuf wxWCharBuffer
 #endif // Unicode/ANSI
 
+// type of the value returned by wxString::utf8_str()
+#if wxUSE_UNICODE_UTF8
+    #define wxUTF8Buf char *
+#else
+    #define wxUTF8Buf wxCharBuffer
+#endif
+
 // ----------------------------------------------------------------------------
 // A class for holding growable data buffers (not necessarily strings)
 // ----------------------------------------------------------------------------
@@ -284,7 +298,7 @@ private:
 };
 
 
-class wxMemoryBuffer
+class WXDLLIMPEXP_BASE wxMemoryBuffer
 {
 public:
     // ctor and dtor
@@ -306,9 +320,12 @@ public:
 
     wxMemoryBuffer& operator=(const wxMemoryBuffer& src)
     {
-        m_bufdata->DecRef();
-        m_bufdata = src.m_bufdata;
-        m_bufdata->IncRef();
+        if (&src != this)
+        {
+            m_bufdata->DecRef();
+            m_bufdata = src.m_bufdata;
+            m_bufdata->IncRef();
+        }
         return *this;
     }