Removes performance warning in MSVC.

* Removes performance warning about forcing int to true/false.

src/clstepcore/ExpDict.h

@@ -1127,7 +1127,7 @@ class SCL_CORE_EXPORT SchRename {
         int operator< ( SchRename & schrnm ) {
             return ( strcmp( schName, schrnm.schName ) < 0 );
         }
-        int choice( const char * nm ) const;
+        bool choice( const char * nm ) const;
         // is nm one of our possible choices?
         char * rename( const char * schm, char * newnm ) const;
         // given a schema name, returns new object name if exists

src/clstepcore/ExpDict.inline.cc

@@ -316,14 +316,14 @@ void TypeDescriptor::addAltName( const char * schnm, const char * newnm ) {
  * See if nm = one of our choices (either ours or that of a SchRename
  * later in the list.
  */
-int SchRename::choice( const char * nm ) const {
+bool SchRename::choice( const char * nm ) const {
     if( !StrCmpIns( nm, newName ) ) {
-        return 1;
+        return true;
     }
     if( next ) {
         return ( next->choice( nm ) );
     }
-    return 0;
+    return false;
 }
 
 /**

src/clstepcore/Registry.inline.cc

@@ -276,10 +276,10 @@ SDAI_Application_instance * Registry::ObjCreate( const char * nm, const char * s
             ( ( EntityDescriptor * )entd ) -> NewSTEPentity();
 
         // See comment in previous function.
-        if( entd->AbstractEntity().asInt() == true ) {
+        if( entd->AbstractEntity().asInt() == 1 ) {
             se->Error().severity( SEVERITY_WARNING );
             se->Error().UserMsg( "ENTITY is abstract supertype" );
-        } else if( entd->ExtMapping().asInt() == true ) {
+        } else if( entd->ExtMapping().asInt() == 1 ) {
             se->Error().severity( SEVERITY_WARNING );
             se->Error().UserMsg( "ENTITY requires external mapping" );
         }

src/clstepcore/complexSupport.h

@@ -222,10 +222,14 @@ class SCL_CORE_EXPORT SimpleList : public EntList {
             return name;
         }
         bool contains( char * nm ) {
-            return *this == nm;
+            if ( *this == nm )
+                return true;
+            return false;
         }
         bool hit( char * nm ) {
-            return *this == nm;
+            if ( *this == nm )
+                return true;
+            return false;
         }
         MatchType matchNonORs( EntNode * );
         bool acceptChoice( EntNode * );

src/clutils/dirobj.cc

@@ -180,7 +180,9 @@ bool DirObj::Reset( const std::string & path ) {
 
 bool DirObj::IsADirectory( const char * path ) {
 #if defined(__WIN32__)
-    return PathIsDirectory( path );
+    if ( PathIsDirectory( path ) )
+        return true;
+    return false;
 #else
     struct stat st;
     return stat( path, &st ) == 0 && ( st.st_mode & S_IFMT ) == S_IFDIR;