llvm-project/compiler-rt/lib/ubsan/lit_tests/Integer/negate-overflow.cpp

8 lines
334 B
C++

// RUN: %clang -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s
int main() {
-unsigned(-0x7fffffff - 1); // ok
// CHECK: negate-overflow.cpp:6:10: fatal error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
return -(-0x7fffffff - 1);
}