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https://github.com/ethereum/solidity
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11 lines
173 B
Solidity
11 lines
173 B
Solidity
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pragma experimental SMTChecker;
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contract C
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{
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function sub(uint256 a, uint256 b) internal pure returns (uint256) {
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require(b <= a);
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uint256 c = a - b;
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return c;
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}
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}
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