Quick Bytes To Hex, No checking

hex.h

/*******************************************************************************
 * This file is part of the ARK Ledger App.
 *
 * Copyright (c) ARK Ecosystem <[email protected]>
 *
 * The MIT License (MIT)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 ******************************************************************************/

#ifndef ARK_UTILS_HEX_H
#define ARK_UTILS_HEX_H

#include <stddef.h>
#include <stdint.h>

////////////////////////////////////////////////////////////////////////////////
static const uint8_t hexDigits[] = {
    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
    'a', 'b', 'c', 'd', 'e', 'f'
};

////////////////////////////////////////////////////////////////////////////////
// Convert Bytes to a Hex string.
// NULL terminator is added at (hexStringLen + 1)
void bytesToHex(char *dest, const uint8_t *src, size_t length) {
    while (length--) {
        *dest++ = hexDigits[(*src >> 4) & 0xF];
        *dest++ = hexDigits[*src & 0xF];
        ++src;
    }
    *dest = '\0';
}

#endif  // ARK_UTILS_HEX_H