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https://github.com/ethereum/solidity
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19 lines
407 B
Solidity
19 lines
407 B
Solidity
pragma experimental SMTChecker;
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contract C
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{
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function f(uint8 x) public pure returns (uint8) {
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uint8 y = x + 255;
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require(y >= x);
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x = 255;
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y = x + 1;
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assert(y == 0);
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y = x + 255;
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assert(y == 254);
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return y;
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}
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}
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// ----
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// Warning 2661: (154-159): Overflow (resulting value larger than 255) happens here
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// Warning 2661: (185-192): Overflow (resulting value larger than 255) happens here
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