change return type to bool for one func, remove a const_cast elsewhere

src/clstepcore/ExpDict.h

@@ -1315,7 +1315,7 @@ class EntityDescriptor  :    public TypeDescriptor  {
         void AddSubtype(EntityDescriptor *ed)
                 { _subtypes.AddNode(ed); }
         void AddSupertype_Stmt(const char *s) { _supertype_stmt = s; }
-        const char * Supertype_Stmt() { return const_cast<char *>(_supertype_stmt.c_str()); }
+        const char * Supertype_Stmt() { return _supertype_stmt.c_str(); }
         std::string& supertype_stmt_() { return _supertype_stmt; }
 
         void AddSupertype(EntityDescriptor *ed)

src/clstepcore/STEPattribute.cc

@@ -816,13 +816,13 @@ int STEPattribute::is_null()  const {
 /**************************************************************//**
 ** evaluates the equality of two attributes
 ** Side Effects:  none
-** \return int -- if 0 => not equal
+** \return bool -- if false => not equal
 ******************************************************************/
-int operator == ( STEPattribute & a1, STEPattribute & a2 ) {
+bool operator == ( STEPattribute & a1, STEPattribute & a2 ) {
     if ( a1.aDesc == a2.aDesc ) {
-        return 1;
+        return true;
     }
-    return 0;
+    return false;
 }
 
 

src/clstepcore/STEPattribute.h

@@ -180,7 +180,7 @@ class STEPattribute {
            //  UNDEFINED
    STEPattribute (const class AttrDescriptor& d, SCLundefined *p);
 
-  friend int operator == (STEPattribute &a1, STEPattribute &a2);
+  friend bool operator == (STEPattribute &a1, STEPattribute &a2);
 };
 
 #endif