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ac12644/CrowdSale.sol

Created August 14, 2022 09:48
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CrowdSale.sol
function _preValidatePurchase(address _investor, uint256 _weiAmount)
internal
{
require(_investor != address(0));
require(_weiAmount != 0);
}
function _postValidatePurchase(address _investor, uint256 _weiAmount)
internal
{
// optional override
}
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