19 lines
430 B
Solidity
19 lines
430 B
Solidity
pragma solidity ^0.4.18;
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/**
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* Utility library of inline functions on addresses
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*/
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library AddressUtils {
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/**
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* Returns whether there is code in the target address
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* @param addr address address to check
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* @return whether there is code in the target address
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*/
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function isContract(address addr) internal view returns (bool) {
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uint size;
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assembly { size := extcodesize(addr) }
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return size > 0;
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}
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} |