solidity/test/libsolidity/semanticTests/viaYul/detect_add_overflow.yul

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2019-03-18 10:21:41 +00:00
contract C {
function f(uint a, uint b) public pure returns (uint x) {
x = a + b;
}
function g(uint8 a, uint8 b) public pure returns (uint8 x) {
x = a + b;
}
}
// ====
// compileViaYul: true
// ----
// f(uint256,uint256): 5, 6 -> 11
// f(uint256,uint256): -2, 1 -> -1
// f(uint256,uint256): -2, 2 -> FAILURE
// f(uint256,uint256): 2, -2 -> FAILURE
// g(uint8,uint8): 128, 64 -> 192
// g(uint8,uint8): 128, 127 -> 255
// g(uint8,uint8): 128, 128 -> FAILURE