diff options
Diffstat (limited to 'test/Sema/format-strings.c')
| -rw-r--r-- | test/Sema/format-strings.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c index f1fa658..4db775f 100644 --- a/test/Sema/format-strings.c +++ b/test/Sema/format-strings.c @@ -55,7 +55,7 @@ void check_conditional_literal(const char* s, int i) { printf(i == 1 ? "yes" : "no"); // no-warning printf(i == 0 ? (i == 1 ? "yes" : "no") : "dont know"); // no-warning printf(i == 0 ? (i == 1 ? s : "no") : "dont know"); // expected-warning{{format string is not a string literal}} - printf("yes" ?: "no %d", 1); // expected-warning{{more data arguments than format specifiers}} + printf("yes" ?: "no %d", 1); // expected-warning{{data argument not used by format string}} } void check_writeback_specifier() @@ -145,6 +145,7 @@ void torture(va_list v8) { } void test10(int x, float f, int i, long long lli) { + printf("%s"); // expected-warning{{more '%' conversions than data arguments}} printf("%@", 12); // expected-warning{{invalid conversion specifier '@'}} printf("\0"); // expected-warning{{format string contains '\0' within the string body}} printf("xs\0"); // expected-warning{{format string contains '\0' within the string body}} @@ -155,7 +156,7 @@ void test10(int x, float f, int i, long long lli) { printf("%**\n"); // expected-warning{{invalid conversion specifier '*'}} printf("%n", &i); // expected-warning{{use of '%n' in format string discouraged (potentially insecure)}} printf("%d%d\n", x); // expected-warning{{more '%' conversions than data arguments}} - printf("%d\n", x, x); // expected-warning{{more data arguments than format specifiers}} + printf("%d\n", x, x); // expected-warning{{data argument not used by format string}} printf("%W%d%Z\n", x, x, x); // expected-warning{{invalid conversion specifier 'W'}} expected-warning{{invalid conversion specifier 'Z'}} printf("%"); // expected-warning{{incomplete format specifier}} printf("%.d", x); // no-warning @@ -169,6 +170,8 @@ void test10(int x, float f, int i, long long lli) { printf("%d", (long long) 10); // expected-warning{{conversion specifies type 'int' but the argument has type 'long long'}} printf("%Lf\n", (long double) 1.0); // no-warning printf("%f\n", (long double) 1.0); // expected-warning{{conversion specifies type 'double' but the argument has type 'long double'}} + // The man page says that a zero precision is okay. + printf("%.0Lf", (long double) 1.0); // no-warning } void test11(void *p, char *s) { @@ -204,3 +207,34 @@ void test_asl(aslclient asl) { // <rdar://problem/7595366> typedef enum { A } int_t; void f0(int_t x) { printf("%d\n", x); } + +// Unicode test cases. These are possibly specific to Mac OS X. If so, they should +// eventually be moved into a separate test. +typedef __WCHAR_TYPE__ wchar_t; + +void test_unicode_conversions(wchar_t *s) { + printf("%S", s); // no-warning + printf("%s", s); // expected-warning{{conversion specifies type 'char *' but the argument has type 'wchar_t *'}} + printf("%C", s[0]); // no-warning + printf("%c", s[0]); + // FIXME: This test reports inconsistent results. On Windows, '%C' expects + // 'unsigned short'. + // printf("%C", 10); + // FIXME: we report the expected type as 'int*' instead of 'wchar_t*' + printf("%S", "hello"); // expected-warning{{but the argument has type 'char *'}} +} + +// Mac OS X supports positional arguments in format strings. +// This is an IEEE extension (IEEE Std 1003.1). +// FIXME: This is probably not portable everywhere. +void test_positional_arguments() { + printf("%0$", (int)2); // expected-warning{{position arguments in format strings start counting at 1 (not 0)}} + printf("%1$*0$d", (int) 2); // expected-warning{{position arguments in format strings start counting at 1 (not 0)}} + printf("%1$d", (int) 2); // no-warning + printf("%1$d", (int) 2, 2); // expected-warning{{data argument not used by format string}} + printf("%1$d%1$f", (int) 2); // expected-warning{{conversion specifies type 'double' but the argument has type 'int'}} + printf("%1$2.2d", (int) 2); // no-warning + printf("%2$*1$.2d", (int) 2, (int) 3); // no-warning + printf("%2$*8$d", (int) 2, (int) 3); // expected-warning{{specified field width is missing a matching 'int' argument}} +} + |
