31 lines · c
1/* RUN: %clang_cc1 -fsyntax-only -verify -triple i386-apple-darwin9 -Wformat-non-iso -std=c89 %s2 */3 4int scanf(const char * restrict, ...);5int printf(const char *restrict, ...);6 7void foo(char **sp, float *fp, int *ip) {8 scanf("%as", sp); /* expected-warning{{'a' length modifier is not supported by ISO C}} */9 scanf("%a[abc]", sp); /* expected-warning{{'a' length modifier is not supported by ISO C}} */10 11 /* TODO: Warn that the 'a' conversion specifier is a C99 feature. */12 scanf("%a", fp);13 scanf("%afoobar", fp);14 printf("%a", 1.0);15 printf("%as", 1.0);16 printf("%aS", 1.0);17 printf("%a[", 1.0);18 printf("%afoo", 1.0);19 20 scanf("%da", ip);21 22 /* Test argument type check for the 'a' length modifier. */23 scanf("%as", fp); /* expected-warning{{format specifies type 'char **' but the argument has type 'float *'}}24 expected-warning{{'a' length modifier is not supported by ISO C}} */25 scanf("%aS", fp); /* expected-warning{{format specifies type 'wchar_t **' (aka 'int **') but the argument has type 'float *'}}26 expected-warning{{'a' length modifier is not supported by ISO C}}27 expected-warning{{'S' conversion specifier is not supported by ISO C}} */28 scanf("%a[abc]", fp); /* expected-warning{{format specifies type 'char **' but the argument has type 'float *'}}29 expected-warning{{'a' length modifier is not supported by ISO C}} */30}31