1 files changed, 6 insertions, 0 deletions
diff --git a/gfx/gl/program.h b/gfx/gl/program.h
index c89a128..20be1aa 100644
--- a/gfx/gl/program.h
+++ b/gfx/gl/program.h
@@ -33,6 +33,12 @@ public:
 			return location;
 		}
 
+		explicit
+		operator bool() const
+		{
+			return location >= 0;
+		}
+
 	protected:
 		GLint location;
 	};