clang-1/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 'size_t' (aka 'unsigned long') but the argument has type 'double'}}

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

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