1 // RUN: %clang_cc1 -fsyntax-only -fblocks -Wformat -verify %s -Wno-error=non-pod-varargs 2 // RUN: %clang_cc1 -fsyntax-only -fblocks -Wformat -verify %s -Wno-error=non-pod-varargs -std=c++98 3 // RUN: %clang_cc1 -fsyntax-only -fblocks -Wformat -verify %s -Wno-error=non-pod-varargs -std=c++11 4 5 int (^block) (int, const char *,...) __attribute__((__format__(__printf__,2,3))) = ^ __attribute__((__format__(__printf__,2,3))) (int arg, const char *format,...) {return 5;}; 6 7 class HasNoCStr { 8 const char *str; 9 public: 10 HasNoCStr(const char *s): str(s) { } 11 const char *not_c_str() {return str;} 12 }; 13 14 void test_block() { 15 const char str[] = "test"; 16 HasNoCStr hncs(str); 17 int n = 4; 18 block(n, "%s %d", str, n); // no-warning 19 block(n, "%s %s", hncs, n); 20 #if __cplusplus <= 199711L // C++03 or earlier modes 21 // expected-warning@-2{{cannot pass non-POD object of type 'HasNoCStr' to variadic block; expected type from format string was 'char *'}} 22 #else 23 // expected-warning@-4{{format specifies type 'char *' but the argument has type 'HasNoCStr'}} 24 #endif 25 // expected-warning@-6{{format specifies type 'char *' but the argument has type 'int'}} 26 } 27
