diff options
Diffstat (limited to 'test/Sema/format-strings.c')
| -rw-r--r-- | test/Sema/format-strings.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c index 5c30849059..9da5f9b6c7 100644 --- a/test/Sema/format-strings.c +++ b/test/Sema/format-strings.c @@ -91,6 +91,7 @@ void check_writeback_specifier() printf("%n",&x); // expected-warning {{'%n' in format string discouraged}} sprintf(b,"%d%%%n",1, &x); // expected-warning {{'%n' in format string dis}} + printf("%n",b); // expected-warning {{'%n' in format string discouraged}} expected-warning{{format specifies type 'int *' but the argument has type 'char *'}} } void check_invalid_specifier(FILE* fp, char *buf) @@ -316,14 +317,14 @@ void bug7377_bad_length_mod_usage() { // Bad flag usage printf("%#p", (void *) 0); // expected-warning{{flag '#' results in undefined behavior with 'p' conversion specifier}} printf("%0d", -1); // no-warning - printf("%#n", (void *) 0); // expected-warning{{flag '#' results in undefined behavior with 'n' conversion specifier}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} - printf("%-n", (void *) 0); // expected-warning{{flag '-' results in undefined behavior with 'n' conversion specifier}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} + printf("%#n", (int *) 0); // expected-warning{{flag '#' results in undefined behavior with 'n' conversion specifier}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} + printf("%-n", (int *) 0); // expected-warning{{flag '-' results in undefined behavior with 'n' conversion specifier}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} printf("%-p", (void *) 0); // no-warning // Bad optional amount use printf("%.2c", 'a'); // expected-warning{{precision used with 'c' conversion specifier, resulting in undefined behavior}} - printf("%1n", (void *) 0); // expected-warning{{field width used with 'n' conversion specifier, resulting in undefined behavior}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} - printf("%.9n", (void *) 0); // expected-warning{{precision used with 'n' conversion specifier, resulting in undefined behavior}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} + printf("%1n", (int *) 0); // expected-warning{{field width used with 'n' conversion specifier, resulting in undefined behavior}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} + printf("%.9n", (int *) 0); // expected-warning{{precision used with 'n' conversion specifier, resulting in undefined behavior}} expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} // Ignored flags printf("% +f", 1.23); // expected-warning{{flag ' ' is ignored when flag '+' is present}} @@ -436,8 +437,9 @@ void pr9751() { printf("%18$s\n", 1, "foo"); // expected-warning{{data argument position '18' exceeds the number of data arguments (2)}} const char kFormat3[] = "%n"; // expected-note{{format string is defined here}} - printf(kFormat3, "as"); // expected-warning{{use of '%n' in format string discouraged}} - printf("%n", "as"); // expected-warning{{use of '%n' in format string discouraged}} + printf(kFormat3, (int*)NULL); // expected-warning{{use of '%n' in format string discouraged}} + printf("%n", (int*)NULL); // expected-warning{{use of '%n' in format string discouraged}} + const char kFormat4[] = "%y"; // expected-note{{format string is defined here}} printf(kFormat4, 5); // expected-warning{{invalid conversion specifier 'y'}} |