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13 lines
726 B
13 lines
726 B
// RUN: %clangxx -fsanitize=signed-integer-overflow %s -o %t1 && %run %t1 2>&1 | FileCheck %s --check-prefix=CHECKS
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// RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t2 && %run %t2 2>&1 | FileCheck %s --check-prefix=CHECKU
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int main() {
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// CHECKS-NOT: runtime error
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// CHECKU: negate-overflow.cpp:[[@LINE+2]]:3: runtime error: negation of 2147483648 cannot be represented in type 'unsigned int'
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// CHECKU-NOT: cast to an unsigned
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-unsigned(-0x7fffffff - 1); // ok
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// CHECKS: negate-overflow.cpp:[[@LINE+2]]:10: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
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// CHECKU-NOT: runtime error
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return -(-0x7fffffff - 1);
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}
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