1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s
2 
3 int printf(char const *, ...);
4 
5 void test(void) {
6   // size_t
7   printf("%zu", (double)42); // expected-warning {{format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'double'}}
8 
9   // intmax_t / uintmax_t
10   printf("%jd", (double)42); // expected-warning {{format specifies type 'intmax_t' (aka 'long') but the argument has type 'double'}}
11   printf("%ju", (double)42); // expected-warning {{format specifies type 'uintmax_t' (aka 'unsigned long') but the argument has type 'double'}}
12 
13   // ptrdiff_t
14   printf("%td", (double)42); // expected-warning {{format specifies type 'ptrdiff_t' (aka 'long') but the argument has type 'double'}}
15 }
16 
17 void test_writeback(void) {
18   printf("%jn", (long*)0); // no-warning
19   printf("%jn", (unsigned long*)0); // no-warning
20   printf("%jn", (int*)0); // expected-warning{{format specifies type 'intmax_t *' (aka 'long *') but the argument has type 'int *'}}
21 
22   printf("%zn", (long*)0); // no-warning
23   // FIXME: Warn about %zn with non-ssize_t argument.
24 
25   printf("%tn", (long*)0); // no-warning
26   printf("%tn", (unsigned long*)0); // no-warning
27   printf("%tn", (int*)0); // expected-warning{{format specifies type 'ptrdiff_t *' (aka 'long *') but the argument has type 'int *'}}
28 }
29