mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
53 lines
1.3 KiB
Solidity
53 lines
1.3 KiB
Solidity
contract c {
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struct Nested {
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uint256 x;
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uint256 y;
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}
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struct Struct {
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uint256 a;
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Nested nested;
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uint256 c;
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}
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mapping(uint256 => Struct) data;
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function set(uint256 k) public returns (bool) {
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data[k].a = 1;
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data[k].nested.x = 3;
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data[k].nested.y = 4;
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data[k].c = 2;
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return true;
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}
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function copy(uint256 from, uint256 to) public returns (bool) {
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data[to] = data[from];
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return true;
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}
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function retrieve(uint256 k)
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public
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returns (uint256 a, uint256 x, uint256 y, uint256 c)
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{
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a = data[k].a;
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x = data[k].nested.x;
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y = data[k].nested.y;
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c = data[k].c;
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}
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}
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// ----
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// set(uint256): 7 -> true
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// gas irOptimized: 109896
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// gas legacy: 110597
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// gas legacyOptimized: 110003
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// retrieve(uint256): 7 -> 1, 3, 4, 2
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// copy(uint256,uint256): 7, 8 -> true
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// gas irOptimized: 118593
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// gas legacy: 119147
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// gas legacyOptimized: 118619
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// retrieve(uint256): 7 -> 1, 3, 4, 2
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// retrieve(uint256): 8 -> 1, 3, 4, 2
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// copy(uint256,uint256): 0, 7 -> true
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// retrieve(uint256): 7 -> 0, 0, 0, 0
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// retrieve(uint256): 8 -> 1, 3, 4, 2
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// copy(uint256,uint256): 7, 8 -> true
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// retrieve(uint256): 8 -> 0, 0, 0, 0
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