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| author | Erik Pilkington <erik.pilkington@gmail.com> | 2019-09-18 19:05:14 +0000 |
|---|---|---|
| committer | Erik Pilkington <erik.pilkington@gmail.com> | 2019-09-18 19:05:14 +0000 |
| commit | 7a6d9c12018b01e8d97ccb88367f24d7f38351cc (patch) | |
| tree | 59c3b6a222dfe7452c9ee64fb42c794bb4884fb7 /test/Sema | |
| parent | da7c99cf283cf1773550f372cb50d3320db77e92 (diff) | |
| download | clang-7a6d9c12018b01e8d97ccb88367f24d7f38351cc.tar.gz | |
[Sema] Suppress -Wformat diagnostics for bool types when printed using %hhd
Also, add a diagnostic under -Wformat for printing a boolean value as a
character.
rdar://54579473
Differential revision: https://reviews.llvm.org/D66856
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@372247 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Sema')
| -rw-r--r-- | test/Sema/format-bool.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/Sema/format-bool.c b/test/Sema/format-bool.c new file mode 100644 index 0000000000..53c2c7fd12 --- /dev/null +++ b/test/Sema/format-bool.c @@ -0,0 +1,46 @@ +// RUN: %clang_cc1 -xc %s -verify -DBOOL=_Bool +// RUN: %clang_cc1 -xc++ %s -verify -DBOOL=bool +// RUN: %clang_cc1 -xobjective-c %s -verify -DBOOL=_Bool +// RUN: %clang_cc1 -xc %s -verify -DBOOL=_Bool -Wformat-pedantic -DPEDANTIC +// RUN: %clang_cc1 -xc++ %s -verify -DBOOL=bool -Wformat-pedantic -DPEDANTIC + +__attribute__((format(__printf__, 1, 2))) +int p(const char *fmt, ...); + +BOOL b; + +#ifdef __OBJC__ +@interface NSString ++(NSString *)stringWithFormat:(NSString *)fmt, ... + __attribute__((format(__NSString__, 1, 2))); +@end + +#define YES __objc_yes +#define NO __objc_no +#endif + +int main() { + p("%d", b); + p("%hd", b); +#ifdef PEDANTIC + // expected-warning@-2 {{format specifies type 'short' but the argument has type}} +#endif + p("%hhd", b); + p("%u", b); + p("%hu", b); +#ifdef PEDANTIC + // expected-warning@-2 {{format specifies type 'unsigned short' but the argument has type}} +#endif + p("%hhu", b); + p("%c", b); // expected-warning {{using '%c' format specifier, but argument has boolean value}} + p("%lc", b); // expected-warning {{using '%lc' format specifier, but argument has boolean value}} + p("%c", 1 == 1); // expected-warning {{using '%c' format specifier, but argument has boolean value}} + p("%f", b); // expected-warning{{format specifies type 'double' but the argument has type}} + p("%ld", b); // expected-warning{{format specifies type 'long' but the argument has type}} + p("%lld", b); // expected-warning{{format specifies type 'long long' but the argument has type}} + +#ifdef __OBJC__ + [NSString stringWithFormat: @"%c", 0]; // probably fine? + [NSString stringWithFormat: @"%c", NO]; // expected-warning {{using '%c' format specifier, but argument has boolean value}} +#endif +} |