pragma solidity ^0.4.25;

/**
 * @title RealitioSafeMath32
 * @dev Math operations with safety checks that throw on error
 * @dev Copy of SafeMath but for uint32 instead of uint256
 * @dev Deleted functions we don't use
 */
library RealitioSafeMath32 {
  function add(uint32 a, uint32 b) internal pure returns (uint32) {
    uint32 c = a + b;
    assert(c >= a);
    return c;
  }
}