test/Sema/format-strings-size_t.c

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s

int printf(char const *, ...);

void test(void) {
  // size_t
  printf("%zu", (double)42); // expected-warning {{conversion specifies type 'unsigned long' but the argument has type 'double''}}

  // intmax_t / uintmax_t
  printf("%jd", (double)42); // expected-warning {{conversion specifies type 'long' but the argument has type 'double''}}
  printf("%ju", (double)42); // expected-warning {{conversion specifies type 'unsigned long' but the argument has type 'double''}}

  // ptrdiff_t
  printf("%td", (double)42); // expected-warning {{conversion specifies type 'long' but the argument has type 'double''}}
}