1 files changed, 3 insertions, 18 deletions
diff --git a/Source/cmPropertyDefinitionMap.cxx b/Source/cmPropertyDefinitionMap.cxx
index db2950461f..3875318f4a 100644
--- a/Source/cmPropertyDefinitionMap.cxx
+++ b/Source/cmPropertyDefinitionMap.cxx
@@ -14,16 +14,11 @@
 #include "cmDocumentationSection.h"
 
 void cmPropertyDefinitionMap
-::DefineProperty(const char *name, cmProperty::ScopeType scope,
+::DefineProperty(const std::string& name, cmProperty::ScopeType scope,
                  const char *ShortDescription,
                  const char *FullDescription,
                  bool chain)
 {
-  if (!name)
-    {
-    return;
-    }
-
   cmPropertyDefinitionMap::iterator it = this->find(name);
   cmPropertyDefinition *prop;
   if (it == this->end())
@@ -34,13 +29,8 @@ void cmPropertyDefinitionMap
     }
 }
 
-bool cmPropertyDefinitionMap::IsPropertyDefined(const char *name)
+bool cmPropertyDefinitionMap::IsPropertyDefined(const std::string& name)
 {
-  if (!name)
-    {
-    return false;
-    }
-
   cmPropertyDefinitionMap::iterator it = this->find(name);
   if (it == this->end())
     {
@@ -50,13 +40,8 @@ bool cmPropertyDefinitionMap::IsPropertyDefined(const char *name)
   return true;
 }
 
-bool cmPropertyDefinitionMap::IsPropertyChained(const char *name)
+bool cmPropertyDefinitionMap::IsPropertyChained(const std::string& name)
 {
-  if (!name)
-    {
-    return false;
-    }
-
   cmPropertyDefinitionMap::iterator it = this->find(name);
   if (it == this->end())
     {