mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
25 lines
787 B
Solidity
25 lines
787 B
Solidity
contract C {
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bytes32 public genesisHash;
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bytes32 public currentHash;
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constructor() {
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require(block.number == 1);
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genesisHash = blockhash(0);
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currentHash = blockhash(1);
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}
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function f(uint blockNumber) public returns (bytes32) {
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return blockhash(blockNumber);
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}
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}
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// ----
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// constructor()
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// gas irOptimized: 109878
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// gas legacy: 152179
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// gas legacyOptimized: 106750
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// genesisHash() -> 0x3737373737373737373737373737373737373737373737373737373737373737
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// currentHash() -> 0
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// f(uint256): 0 -> 0x3737373737373737373737373737373737373737373737373737373737373737
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// f(uint256): 1 -> 0x3737373737373737373737373737373737373737373737373737373737373738
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// f(uint256): 255 -> 0x00
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// f(uint256): 256 -> 0x00
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// f(uint256): 257 -> 0x00
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