1 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fsyntax-only -verify %s 2 3 int printf(char const *, ...); 4 int scanf(char const *, ...); 5 6 void test(void) { 7 printf("%jd", 42.0); // expected-warning {{format specifies type 'intmax_t' (aka 'long long')}} 8 printf("%ju", 42.0); // expected-warning {{format specifies type 'uintmax_t' (aka 'unsigned long long')}} 9 printf("%zu", 42.0); // expected-warning {{format specifies type 'size_t' (aka 'unsigned long')}} 10 printf("%td", 42.0); // expected-warning {{format specifies type 'ptrdiff_t' (aka 'int')}} 11 printf("%lc", 42.0); // expected-warning {{format specifies type 'wint_t' (aka 'int')}} 12 printf("%ls", 42.0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 13 printf("%S", 42.0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 14 printf("%C", 42.0); // expected-warning {{format specifies type 'wchar_t' (aka 'int')}} 15 16 scanf("%jd", 0); // expected-warning {{format specifies type 'intmax_t *' (aka 'long long *')}} 17 scanf("%ju", 0); // expected-warning {{format specifies type 'uintmax_t *' (aka 'unsigned long long *')}} 18 scanf("%zu", 0); // expected-warning {{format specifies type 'size_t *' (aka 'unsigned long *')}} 19 scanf("%td", 0); // expected-warning {{format specifies type 'ptrdiff_t *' (aka 'int *')}} 20 scanf("%lc", 0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 21 scanf("%ls", 0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 22 scanf("%S", 0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 23 scanf("%C", 0); // expected-warning {{format specifies type 'wchar_t *' (aka 'int *')}} 24 25 26 // typedef size_t et al. to something crazy. 27 typedef void *size_t; 28 typedef void *intmax_t; 29 typedef void *uintmax_t; 30 typedef void *ptrdiff_t; 31 32 // The warning still fires, because it checks the underlying type. 33 printf("%jd", (intmax_t)42); // expected-warning {{format specifies type 'intmax_t' (aka 'long long') but the argument has type 'intmax_t' (aka 'void *')}} 34 printf("%ju", (uintmax_t)42); // expected-warning {{format specifies type 'uintmax_t' (aka 'unsigned long long') but the argument has type 'uintmax_t' (aka 'void *')}} 35 printf("%zu", (size_t)42); // expected-warning {{format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'size_t' (aka 'void *')}} 36 printf("%td", (ptrdiff_t)42); // expected-warning {{format specifies type 'ptrdiff_t' (aka 'int') but the argument has type 'ptrdiff_t' (aka 'void *')}} 37 } 38
