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// RUN: %clang_cc1 -fsyntax-only -verify %s
#if __has_feature(__builtin_add_overflow)
#warning defined as expected
// expected-warning@-1 {{defined as expected}}
#endif
void test(void) {
unsigned r;
const char * c;
float f;
const unsigned q;
__builtin_add_overflow(); // expected-error {{too few arguments to function call, expected 3, have 0}}
__builtin_add_overflow(1, 1, 1, 1); // expected-error {{too many arguments to function call, expected 3, have 4}}
__builtin_add_overflow(c, 1, &r); // expected-error {{operand argument to overflow builtin must be an integer type ('const char *' invalid)}}
__builtin_add_overflow(1, c, &r); // expected-error {{operand argument to overflow builtin must be an integer type ('const char *' invalid)}}
__builtin_add_overflow(1, 1, 3); // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer type ('int' invalid)}}
__builtin_add_overflow(1, 1, &f); // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer type ('float *' invalid)}}
__builtin_add_overflow(1, 1, &q); // expected-error {{result argument to overflow builtin must be a pointer to a non-const integer type ('const unsigned int *' invalid)}}
{
_BitInt(128) x = 1;
_BitInt(128) y = 1;
_BitInt(128) result;
_Bool status = __builtin_mul_overflow(x, y, &result); // expect ok
}
#if __BITINT_MAXWIDTH__ > 128
{
unsigned _BitInt(129) x = 1;
unsigned _BitInt(129) y = 1;
unsigned _BitInt(129) result;
_Bool status = __builtin_mul_overflow(x, y, &result); // expect ok
}
{
_BitInt(129) x = 1;
_BitInt(129) y = 1;
_BitInt(129) result;
_Bool status = __builtin_mul_overflow(x, y, &result); // expected-error {{__builtin_mul_overflow does not support 'signed _BitInt' operands of more than 128 bits}}
}
#endif
}
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