Index: src/InitTweak/InitTweak.cc
===================================================================
--- src/InitTweak/InitTweak.cc	(revision ee1635c85e4d2bde1c38c10489af31c9b61685dd)
+++ src/InitTweak/InitTweak.cc	(revision d1969a607787c81d78565de2d2aaa145be1680e2)
@@ -358,5 +358,5 @@
 		template<typename CallExpr>
 		Expression *& callArg( CallExpr * callExpr, unsigned int pos ) {
-			if ( pos >= callExpr->get_args().size() ) assert( false && "asking for argument that doesn't exist. Return NULL/throw exception?" );
+			if ( pos >= callExpr->get_args().size() ) assertf( false, "asking for argument that doesn't exist. Return NULL/throw exception?" );
 			for ( Expression *& arg : callExpr->get_args() ) {
 				if ( pos == 0 ) return arg;
@@ -373,5 +373,5 @@
 			return callArg( untypedExpr, pos );
 		} else {
-			assert( false && "Unexpected expression type passed to getCallArg" );
+			assertf( false, "Unexpected expression type passed to getCallArg" );
 		}
 	}
@@ -388,5 +388,5 @@
 				return memberExpr->get_member()->get_name();
 			} else {
-				assert( false && "Unexpected expression type being called as a function in call expression" );
+				assertf( false, "Unexpected expression type being called as a function in call expression" );
 			}
 		}
@@ -400,5 +400,5 @@
 		} else {
 			std::cerr << expr << std::endl;
-			assert( false && "Unexpected expression type passed to getFunctionName" );
+			assertf( false, "Unexpected expression type passed to getFunctionName" );
 		}
 	}