04fc35707d
* Update contract pragmas to solidity 0.7 * Remove internal declaration on constructors * Reference SafeMath explicitely * Remove public constructor declaration from abstract contracts * Remove public constructor declaration from non-abstract contracts
35 lines
928 B
Solidity
35 lines
928 B
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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/**
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* @dev String operations.
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*/
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library Strings {
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/**
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* @dev Converts a `uint256` to its ASCII `string` representation.
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*/
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function toString(uint256 value) internal pure returns (string memory) {
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// Inspired by OraclizeAPI's implementation - MIT licence
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// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
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if (value == 0) {
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return "0";
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}
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uint256 temp = value;
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uint256 digits;
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while (temp != 0) {
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digits++;
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temp /= 10;
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}
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bytes memory buffer = new bytes(digits);
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uint256 index = digits - 1;
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temp = value;
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while (temp != 0) {
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buffer[index--] = byte(uint8(48 + temp % 10));
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temp /= 10;
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}
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return string(buffer);
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}
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}
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