mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
785 B
42 lines
785 B
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* stdlib functions |
|
* |
|
* Author: Scott Wood <[email protected]> |
|
* |
|
* Copyright (c) 2007 Freescale Semiconductor, Inc. |
|
*/ |
|
|
|
#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; |
|
}
|
|
|