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pragma solidity ^0.5.7;
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contract ReentrancyAttack {
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function callSender(bytes4 data) public {
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// solhint-disable-next-line avoid-low-level-calls
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(bool success,) = msg.sender.call(abi.encodeWithSelector(data));
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require(success, "ReentrancyAttack: failed call");
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}
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}
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