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openzeppelin-contracts/contracts/utils
Philippe Castonguay 0282c3608d Using extcodehash instead of extcodesize for less gas (#1802)
* Using extcodehash instead of extcodesize for less gas

`extcodehash` uses less gas then `extcodesize`. You can tell which address is a contract by the hash (see EIP-1052).

* Fix

* Add explainer

* Update Address.sol

* add changelog entry
2019-07-08 13:41:55 -03:00
..
2019-05-23 18:17:18 -03:00
2019-05-23 18:17:18 -03:00
2019-05-23 18:17:18 -03:00

title, sections
title sections
Utilities
title contracts
Contracts
Address
Arrays
ReentrancyGuard

Miscellaneous contracts containing utility functions, often related to working with different data types.