clang/test/Sema/format-bool.c

   1 // RUN: %clang_cc1 -xc %s -verify -DBOOL=_Bool
   2 // RUN: %clang_cc1 -xc++ %s -verify -DBOOL=bool
   3 // RUN: %clang_cc1 -xobjective-c %s -verify -DBOOL=_Bool
   4 // RUN: %clang_cc1 -xc %s -verify -DBOOL=_Bool -Wformat-type-confusion -DTYPE_CONF
   5 // RUN: %clang_cc1 -xc++ %s -verify -DBOOL=bool -Wformat-type-confusion -DTYPE_CONF
   6
   7 __attribute__((format(__printf__, 1, 2)))
   8 int p(const char *fmt, ...);
   9
  10 BOOL b;
  11
  12 #ifdef __OBJC__
  13 @interface NSString
  14 +(NSString *)stringWithFormat:(NSString *)fmt, ...
  15     __attribute__((format(__NSString__, 1, 2)));
  16 @end
  17
  18 #define YES __objc_yes
  19 #define NO __objc_no
  20 #endif
  21
  22 int main(void) {
  23   p("%d", b);
  24   p("%hd", b);
  25 #ifdef TYPE_CONF
  26   // expected-warning@-2 {{format specifies type 'short' but the argument has type}}
  27 #endif
  28   p("%hhd", b);
  29   p("%u", b);
  30   p("%hu", b);
  31 #ifdef TYPE_CONF
  32   // expected-warning@-2 {{format specifies type 'unsigned short' but the argument has type}}
  33 #endif
  34   p("%hhu", b);
  35   p("%c", b); // expected-warning {{using '%c' format specifier, but argument has boolean value}}
  36   p("%lc", b); // expected-warning {{using '%lc' format specifier, but argument has boolean value}}
  37   p("%c", 1 == 1); // expected-warning {{using '%c' format specifier, but argument has boolean value}}
  38   p("%f", b); // expected-warning{{format specifies type 'double' but the argument has type}}
  39   p("%ld", b); // expected-warning{{format specifies type 'long' but the argument has type}}
  40   p("%lld", b); // expected-warning{{format specifies type 'long long' but the argument has type}}
  41
  42 #ifdef __OBJC__
  43   [NSString stringWithFormat: @"%c", 0]; // probably fine?
  44   [NSString stringWithFormat: @"%c", NO]; // expected-warning {{using '%c' format specifier, but argument has boolean value}}
  45 #endif
  46 }