format-bool.c
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// 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-type-confusion -DTYPE_CONF
// RUN: %clang_cc1 -xc++ %s -verify -DBOOL=bool -Wformat-type-confusion -DTYPE_CONF
__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 TYPE_CONF
// expected-warning@-2 {{format specifies type 'short' but the argument has type}}
#endif
p("%hhd", b);
p("%u", b);
p("%hu", b);
#ifdef TYPE_CONF
// 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
}