mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
17 lines
408 B
Solidity
17 lines
408 B
Solidity
contract C
|
|
{
|
|
function f(int8 x) public pure returns (int8) {
|
|
x = 100;
|
|
int8 y;
|
|
unchecked { y = x * 2; }
|
|
assert(y == -56);
|
|
y = x * 100;
|
|
assert(y == 16);
|
|
return y;
|
|
}
|
|
}
|
|
// ====
|
|
// SMTEngine: all
|
|
// ----
|
|
// Warning 4984: (136-143='x * 100'): CHC: Overflow (resulting value larger than 127) happens here.\nCounterexample:\n\nx = 100\n = 0\ny = (- 56)\n\nTransaction trace:\nC.constructor()\nC.f(0)
|