mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
52 lines
932 B
Solidity
52 lines
932 B
Solidity
contract C {
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uint[] storageArray;
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function test_zeroed_indicies(uint256 len) public
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{
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storageArray.length = len;
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for (uint i = 0; i < len; i++)
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storageArray[i] = i + 1;
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if (len > 3)
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{
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storageArray.length = 3;
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for (uint i = 3; i < len; i++)
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{
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assembly {
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mstore(0, storageArray_slot)
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let pos := add(keccak256(0, 0x20), i)
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if iszero(eq(sload(pos), 0)) {
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revert(0, 0)
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}
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}
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}
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}
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storageArray.length = 0;
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storageArray.length = len;
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for (uint i = 0; i < len; i++)
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{
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require(storageArray[i] == 0);
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uint256 val = storageArray[i];
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uint256 check;
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assembly { check := iszero(val) }
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require(check == 1);
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}
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}
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}
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// ====
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// compileViaYul: true
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// ----
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// test_zeroed_indicies(uint256): 1 ->
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// test_zeroed_indicies(uint256): 5 ->
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// test_zeroed_indicies(uint256): 10 ->
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// test_zeroed_indicies(uint256): 15 ->
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// test_zeroed_indicies(uint256): 0xFF ->
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