diff options
Diffstat (limited to 'clang/test/Sema/format-strings-scanf.c')
| -rw-r--r-- | clang/test/Sema/format-strings-scanf.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/clang/test/Sema/format-strings-scanf.c b/clang/test/Sema/format-strings-scanf.c index e700d10618d..b7cdd7dd4a9 100644 --- a/clang/test/Sema/format-strings-scanf.c +++ b/clang/test/Sema/format-strings-scanf.c @@ -13,6 +13,16 @@ typedef __SIZE_TYPE__ size_t; unsigned short : (short)0, \ unsigned char : (signed char)0)) typedef __SSIZE_TYPE__ ssize_t; + +typedef __PTRDIFF_TYPE__ ptrdiff_t; +#define __UNSIGNED_PTRDIFF_TYPE__ \ + __typeof__(_Generic((__PTRDIFF_TYPE__)0, \ + long long int : (unsigned long long int)0, \ + long int : (unsigned long int)0, \ + int : (unsigned int)0, \ + short : (unsigned short)0, \ + signed char : (unsigned char)0)) + typedef struct _FILE FILE; typedef __WCHAR_TYPE__ wchar_t; @@ -200,6 +210,26 @@ void test_size_types() { scanf("%zn", &d3); // expected-warning-re{{format specifies type 'ssize_t *' (aka '{{.+}}') but the argument has type 'double *'}} } +void test_ptrdiff_t_types() { + __UNSIGNED_PTRDIFF_TYPE__ p1 = 0; + scanf("%tu", &p1); // No warning. + + double d1 = 0.; + scanf("%tu", &d1); // expected-warning-re{{format specifies type 'unsigned ptrdiff_t *' (aka '{{.+}}') but the argument has type 'double *'}} + + ptrdiff_t p2 = 0; + scanf("%td", &p2); // No warning. + + double d2 = 0.; + scanf("%td", &d2); // expected-warning-re{{format specifies type 'ptrdiff_t *' (aka '{{.+}}') but the argument has type 'double *'}} + + ptrdiff_t p3 = 0; + scanf("%tn", &p3); // No warning. + + double d3 = 0.; + scanf("%tn", &d3); // expected-warning-re{{format specifies type 'ptrdiff_t *' (aka '{{.+}}') but the argument has type 'double *'}} +} + void check_conditional_literal(char *s, int *i) { scanf(0 ? "%s" : "%d", i); // no warning scanf(1 ? "%s" : "%d", i); // expected-warning{{format specifies type 'char *'}} |
