document that GetAttribute's argument must not be NULL

[wxWidgets.git] / src / xml / xml.cpp

diff --git a/src/xml/xml.cpp b/src/xml/xml.cpp
index a35d73b26789c65833b0937dd9d6e4859e58ca1f..1f1539556d50901143f8ebbb95fe8a1bb7bf2dbc 100644 (file)
--- a/src/xml/xml.cpp
+++ b/src/xml/xml.cpp
@@ -143,6 +143,8 @@ bool wxXmlNode::HasAttribute(const wxString& attrName) const
 
 bool wxXmlNode::GetAttribute(const wxString& attrName, wxString *value) const
 {
+    wxCHECK_MSG( value, false, "value argument must not be NULL" );
+
     wxXmlAttribute *attr = GetAttributes();
 
     while (attr)