blob: c88461720ad4d9e6ee566deab35839767b71afa0 [file] [log] [blame]
// RUN: %clang_cc1 -verify -fsyntax-only -Wshadow -Wold-style-cast %s
// Test that macro expansions from system headers don't trigger 'syntactic'
// warnings that are not actionable.
#pragma clang system_header
#define SANITY(a) (a / 0)
#define SHADOW(a) __extension__({ int v = a; v; })
#define OLD_STYLE_CAST(a) ((int) (a))
#include __FILE__
void testSanity() {
// Validate that the test is set up correctly
int i = SANITY(0); // expected-warning {{division by zero is undefined}}
void PR16093() {
// no -Wshadow in system macro expansion
int i = SHADOW(SHADOW(1));
void PR18147() {
// no -Wold_style_cast in system macro expansion
int i = OLD_STYLE_CAST(0);