Formula engine: now exponentiation returns null on NaN

wesnoth · Mar 18, 2016 · b53ee99 · b53ee99
1 parent 6da744a
commit b53ee99
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/variant.cpp b/src/variant.cpp
@@ -750,6 +750,8 @@ variant variant::operator^(const variant& v) const
 	if( type_ == TYPE_DECIMAL || v.type_ == TYPE_DECIMAL ) {
 
 		double res = pow( as_decimal()/1000.0 , v.as_decimal()/1000.0 );
+
+		if(res != res) return variant();
 
 		return variant(res, DECIMAL_VARIANT);
 	}