llvm-project/clang/test/Sema/format-strings-pedantic.c

// RUN: %clang_cc1 -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
// RUN: %clang_cc1 -xobjective-c -fblocks -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
// RUN: %clang_cc1 -xc++ -fsyntax-only -verify -Wno-format -Wformat-pedantic %s

__attribute__((format(printf, 1, 2)))
int printf(const char *restrict, ...);

int main() {
  printf("%p", (int *)0); // expected-warning {{format specifies type 'void *' but the argument has type 'int *'}}
  printf("%p", (void *)0);

#ifdef __OBJC__
  printf("%p", ^{}); // expected-warning {{format specifies type 'void *' but the argument has type 'void (^)(void)'}}
  printf("%p", (id)0); // expected-warning {{format specifies type 'void *' but the argument has type 'id'}}
#endif

#ifdef __cplusplus
  printf("%p", nullptr); // expected-warning {{format specifies type 'void *' but the argument has type 'nullptr_t'}}
#endif
}