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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s
      2 
      3 #if __has_feature(__builtin_add_overflow)
      4 #warning defined as expected
      5 // expected-warning@-1 {{defined as expected}}
      6 #endif
      7 
      8 void test(void) {
      9   unsigned r;
     10   const char * c;
     11   float f;
     12   const unsigned q;
     13 
     14   __builtin_add_overflow();  // expected-error {{too few arguments to function call, expected 3, have 0}}
     15   __builtin_add_overflow(1, 1, 1, 1);  // expected-error {{too many arguments to function call, expected 3, have 4}}
     16 
     17   __builtin_add_overflow(c, 1, &r);  // expected-error {{operand argument to overflow builtin must be an integer ('const char *' invalid)}}
     18   __builtin_add_overflow(1, c, &r);  // expected-error {{operand argument to overflow builtin must be an integer ('const char *' invalid)}}
     19   __builtin_add_overflow(1, 1, 3);  // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer ('int' invalid)}}
     20   __builtin_add_overflow(1, 1, &f);  // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer ('float *' invalid)}}
     21   __builtin_add_overflow(1, 1, &q);  // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer ('const unsigned int *' invalid)}}
     22 }
     23