diff options
Diffstat (limited to 'clang/test/Sema/format-strings-scanf.c')
| -rw-r--r-- | clang/test/Sema/format-strings-scanf.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/test/Sema/format-strings-scanf.c b/clang/test/Sema/format-strings-scanf.c index 68552b3e241..42b6c03ffbf 100644 --- a/clang/test/Sema/format-strings-scanf.c +++ b/clang/test/Sema/format-strings-scanf.c @@ -2,6 +2,7 @@ typedef __typeof(sizeof(int)) size_t; typedef struct _FILE FILE; +typedef __WCHAR_TYPE__ wchar_t; int fscanf(FILE * restrict, const char * restrict, ...) ; int scanf(const char * restrict, ...) ; @@ -24,3 +25,10 @@ void test(const char *s, int *i) { scanf("%*d", i); // // expected-warning{{data argument not used by format string}} scanf("%*d%1$d", i); // no-warning } + +void bad_length_modifiers(char *s, void *p, wchar_t *ws, long double *ld) { + scanf("%hhs", "foo"); // expected-warning{{length modifier 'hh' results in undefined behavior or no effect with 's' conversion specifier}} + scanf("%1$zp", p); // expected-warning{{length modifier 'z' results in undefined behavior or no effect with 'p' conversion specifier}} + scanf("%ls", ws); // no-warning + scanf("%#.2Lf", ld); // expected-warning{{invalid conversion specifier '#'}} +} |
