Convert Uint to String

[aurelienchev]

on version 0.8, the function for conversion uint -> string is not working.

update potential:
function uint2str(uint _i) internal pure returns (string memory str) {
if (_i == 0){
return "0";
}
uint256 j = _i;
uint256 length;
while (j != 0){
length++;
j /= 10;
}
bytes memory bstr = new bytes(length);
uint256 k = length;
j = _i;
while (j != 0)
{
bstr[--k] = bytes1(uint8(48 + j % 10));
j /= 10;
}
str = string(bstr);
}