30 lines · c
1// RUN: %clang_cc1 -triple i686-linux-gnu -fsyntax-only -verify -std=c99 -Wformat-non-iso %s2 3int printf(const char *restrict, ...);4int scanf(const char * restrict, ...);5 6void f(void) {7 char *cp;8 9 // The 'q' length modifier.10 printf("%qd", (long long)42); // expected-warning{{'q' length modifier is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}11 scanf("%qd", (long long *)0); // expected-warning{{'q' length modifier is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}12 13 // The 'm' length modifier.14 scanf("%ms", &cp); // expected-warning{{'m' length modifier is not supported by ISO C}}15 16 // The 'S' and 'C' conversion specifiers.17 printf("%S", L"foo"); // expected-warning{{'S' conversion specifier is not supported by ISO C}}18 printf("%C", L'x'); // expected-warning{{'C' conversion specifier is not supported by ISO C}}19 20 // Combining 'L' with an integer conversion specifier.21 printf("%Li", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'i' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}22 printf("%Lo", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'o' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}23 printf("%Lu", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'u' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}24 printf("%Lx", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'x' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}25 printf("%LX", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'X' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}26 27 // Positional arguments.28 printf("%1$d", 42); // expected-warning{{positional arguments are not supported by ISO C}}29}30