mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
32 lines
1.5 KiB
Solidity
32 lines
1.5 KiB
Solidity
pragma experimental SMTChecker;
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contract C {
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function abiEncodeSlice(uint[] calldata data) external pure {
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bytes memory b1 = abi.encode(data);
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bytes memory b2 = abi.encode(data[0:]);
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// should hold but the engine cannot infer that data is fully equals data[0:] because each index is assigned separately
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assert(b1.length == b2.length); // fails for now
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bytes memory b3 = abi.encode(data[:data.length]);
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// should hold but the engine cannot infer that data is fully equals data[:data.length] because each index is assigned separately
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assert(b1.length == b3.length); // fails for now
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bytes memory b4 = abi.encode(data[5:10]);
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assert(b1.length == b4.length); // should fail
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uint x = 5;
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uint y = 10;
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bytes memory b5 = abi.encode(data[x:y]);
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// should hold but the engine cannot infer that data[5:10] is fully equals data[x:y] because each index is assigned separately
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assert(b1.length == b5.length); // fails for now
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}
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}
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// ----
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// Warning 6328: (312-342): CHC: Assertion violation happens here.
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// Warning 6328: (548-578): CHC: Assertion violation happens here.
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// Warning 1218: (644-674): CHC: Error trying to invoke SMT solver.
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// Warning 6328: (644-674): CHC: Assertion violation might happen here.
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// Warning 1218: (895-925): CHC: Error trying to invoke SMT solver.
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// Warning 6328: (895-925): CHC: Assertion violation might happen here.
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// Warning 4661: (644-674): BMC: Assertion violation happens here.
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// Warning 4661: (895-925): BMC: Assertion violation happens here.
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