33 lines · c
1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s2 3int printf(char const *, ...);4 5#include <stddef.h>6 7void test(void) {8 // size_t9 printf("%zu", (size_t)0); // no-warning10 printf("%zu", sizeof(int)); // no-warning11 printf("%zu", (size_t)0 + sizeof(int)); // no-warning12 printf("%zu", (double)42); // expected-warning {{format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'double'}}13 // intmax_t / uintmax_t14 printf("%jd", (double)42); // expected-warning {{format specifies type 'intmax_t' (aka 'long') but the argument has type 'double'}}15 printf("%ju", (double)42); // expected-warning {{format specifies type 'uintmax_t' (aka 'unsigned long') but the argument has type 'double'}}16 17 // ptrdiff_t18 printf("%td", (double)42); // expected-warning {{format specifies type 'ptrdiff_t' (aka 'long') but the argument has type 'double'}}19}20 21void test_writeback(void) {22 printf("%jn", (long*)0); // no-warning23 printf("%jn", (unsigned long*)0); // no-warning24 printf("%jn", (int*)0); // expected-warning{{format specifies type 'intmax_t *' (aka 'long *') but the argument has type 'int *'}}25 26 printf("%zn", (long*)0); // no-warning27 // FIXME: Warn about %zn with non-ssize_t argument.28 29 printf("%tn", (long*)0); // no-warning30 printf("%tn", (unsigned long*)0); // no-warning31 printf("%tn", (int*)0); // expected-warning{{format specifies type 'ptrdiff_t *' (aka 'long *') but the argument has type 'int *'}}32}33