pkmn-classic-framework/gts/src/Common.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace PokeFoundations.GTS
{
    public static class Common
    {
        public static string ToHexStringUpper(this byte[] bytes)
        {
            // http://stackoverflow.com/questions/311165/how-do-you-convert-byte-array-to-hexadecimal-string-and-vice-versa/14333437#14333437
            char[] c = new char[bytes.Length * 2];
            int b;
            for (int i = 0; i < bytes.Length; i++)
            {
                b = bytes[i] >> 4;
                c[i * 2] = (char)(55 + b + (((b - 10) >> 31) & -7));
                b = bytes[i] & 0xF;
                c[i * 2 + 1] = (char)(55 + b + (((b - 10) >> 31) & -7));
            }
            return new string(c);
        }

        public static string ToHexStringLower(this byte[] bytes)
        {
            char[] c = new char[bytes.Length * 2];
            int b;
            for (int i = 0; i < bytes.Length; i++)
            {
                b = bytes[i] >> 4;
                c[i * 2] = (char)(87 + b + (((b - 10) >> 31) & -39));
                b = bytes[i] & 0xF;
                c[i * 2 + 1] = (char)(87 + b + (((b - 10) >> 31) & -39));
            }
            return new string(c);
        }
    }
}