mirror of
https://github.com/ethereum/solidity
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21 lines
434 B
Solidity
21 lines
434 B
Solidity
contract C
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{
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function f(int8 x) public pure returns (int8) {
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x = -2;
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int8 y;
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unchecked { y = x - 127; }
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assert(y == 127);
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x = -128;
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unchecked { y = x - 127; }
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assert(y == 1);
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x = 127;
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unchecked { y = x - (-127); }
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assert(y == -2);
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return y;
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}
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}
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// ====
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// SMTEngine: all
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// ----
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// Info 1391: CHC: 3 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
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