I've seen another question answered with a solution to this here : Convert address to string but it results in an error so I'm re-asking. The error is:
"TypeError: Operator < not compatible with types bytes1 and int_const 10"
For context, I'm trying to build a function to dynamically construct a URI which includes the address of the contract where the function lives.
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Solution taken from previous posts but fixed in order to avoid casting errors presented on latest Solidity versions...
function addressToString(address _address) public pure returns(string memory) {
bytes32 _bytes = bytes32(uint256(_address));
bytes memory HEX = "0123456789abcdef";
bytes memory _string = new bytes(42);
_string[0] = '0';
_string[1] = 'x';
for(uint i = 0; i < 20; i++) {
_string[2+i*2] = HEX[uint8(_bytes[i + 12] >> 4)];
_string[3+i*2] = HEX[uint8(_bytes[i + 12] & 0x0f)];
}
return string(_string);
}
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This seems to return the address as a string, but with trailing 'null' characters. For example, if the address 0xaaadeed4c0b861cb36f4ce006a9c90ba2e43fdc2 is passed to the function, the return value (in a js test) is : '0xaaadeed4c0b861cb36f4ce006a9c90ba2e43fdc2\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000' I wonder if I can tweak it to trim those off... – Nick Furfaro May 1 at 19:52
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