Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * stdlib functions

 *

 * Author: Scott Wood <scottwood@freescale.com>

 *

 * Copyright (c) 2007 Freescale Semiconductor, Inc.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 as published

 * by the Free Software Foundation.

 */

#include "stdlib.h"

/* Not currently supported: leading whitespace, sign, 0x prefix, zero base */

unsigned long long int strtoull(const char *ptr, char **end, int base)

{

        unsigned long long ret = 0;

        if (base > 36)

                goto out;

        while (*ptr) {

                int digit;

                if (*ptr >= '0' && *ptr <= '9' && *ptr < '0' + base)

                        digit = *ptr - '0';

                else if (*ptr >= 'A' && *ptr < 'A' + base - 10)

                        digit = *ptr - 'A' + 10;

                else if (*ptr >= 'a' && *ptr < 'a' + base - 10)

                        digit = *ptr - 'a' + 10;

                else

                        break;

                ret *= base;

                ret += digit;

                ptr++;

        }

out:

        if (end)

                *end = (char *)ptr;

        return ret;

}