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