1831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith// RUN: %clang_cc1 -fsyntax-only -fblocks -Wformat -verify %s -Wno-error=non-pod-varargs 2831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith 3831421f24057b93ea28bc92d8bd6290631a43cafRichard Smithint (^block) (int, const char *,...) __attribute__((__format__(__printf__,2,3))) = ^ __attribute__((__format__(__printf__,2,3))) (int arg, const char *format,...) {return 5;}; 4831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith 5831421f24057b93ea28bc92d8bd6290631a43cafRichard Smithclass HasNoCStr { 6831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith const char *str; 7831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith public: 8831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith HasNoCStr(const char *s): str(s) { } 9831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith const char *not_c_str() {return str;} 10831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith}; 11831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith 12831421f24057b93ea28bc92d8bd6290631a43cafRichard Smithvoid test_block() { 13831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith const char str[] = "test"; 14831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith HasNoCStr hncs(str); 15831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith int n = 4; 16831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith block(n, "%s %d", str, n); // no-warning 17ddcfbc9ad1817f545610999d655ac6c28d4c0c12Jordan Rose block(n, "%s %s", hncs, n); // expected-warning{{cannot pass non-POD object of type 'HasNoCStr' to variadic block; expected type from format string was 'char *'}} expected-warning{{format specifies type 'char *' but the argument has type 'int'}} 18831421f24057b93ea28bc92d8bd6290631a43cafRichard Smith} 19