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marekkirejczyk/gas

Created November 20, 2018 14:49
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execute
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gas
function execute(...) public returns (bytes32) {
uint256 startingGas = gasleft();
...
to.call.value(...)(...);
...
uint256 gasUsed = startingGas.sub(gasleft());
refund(gasUsed, gasPrice, gasToken);
return ...;
}
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