15 lines
498 B
C++
15 lines
498 B
C++
// RUN: %clang -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s
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#include <stdint.h>
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int main() {
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// These promote to 'int'.
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(void)(int8_t(-2) * int8_t(0x7f));
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(void)(int16_t(0x7fff) * int16_t(0x7fff));
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(void)(uint16_t(0xffff) * int16_t(0x7fff));
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(void)(uint16_t(0xffff) * uint16_t(0x8000));
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// CHECK: mul-overflow.cpp:13:27: fatal error: signed integer overflow: 65535 * 32769 cannot be represented in type 'int'
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(void)(uint16_t(0xffff) * uint16_t(0x8001));
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}
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