1 /* RUN: %clang_cc1 -fsyntax-only -verify -triple i386-apple-darwin9 -Wformat-non-iso -std=c89 %s
2 */
3
4 int scanf(const char * restrict, ...);
5 int printf(const char *restrict, ...);
6
foo(char ** sp,float * fp,int * ip)7 void 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