27 lines
812 B
Solidity
27 lines
812 B
Solidity
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// SPDX-License-Identifier: UNLICENSED
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pragma solidity =0.7.6;
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import '../libraries/BitMath.sol';
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contract BitMathTest {
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function mostSignificantBit(uint256 x) external pure returns (uint8 r) {
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return BitMath.mostSignificantBit(x);
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}
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function getGasCostOfMostSignificantBit(uint256 x) external view returns (uint256) {
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uint256 gasBefore = gasleft();
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BitMath.mostSignificantBit(x);
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return gasBefore - gasleft();
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}
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function leastSignificantBit(uint256 x) external pure returns (uint8 r) {
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return BitMath.leastSignificantBit(x);
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}
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function getGasCostOfLeastSignificantBit(uint256 x) external view returns (uint256) {
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uint256 gasBefore = gasleft();
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BitMath.leastSignificantBit(x);
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return gasBefore - gasleft();
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}
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}
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