forked from len0rd/rockbox
eab73b3dee
Rocklua was using the full fscanf implementation
to simply read %ld for the file:read("*n") function
wasting 1k on unneeded/unused functionality
Instead, I've implemented a filetol function to duplicate it
without the extra overhead using strtol which as an added bonus
ERANGE errors now resolve to LONG_MIN and LONGMAX instead of
integer overflow
filetol()
reads long int from an open file, skips preceding
whitespaces returns -1 if error, 1 on success.
*num set to LONG_MAX or LONG_MIN on overflow.
If number of digits is > than LUAI_MAXNUMBER2STR
filepointer will continue till the next non digit
but buffer will stop being filled with characters.
Preceding zero is ignored.
Change-Id: Ia42d0f73c63a894625bca4581e9b7e1cc7387fd2
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
|
|
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2008 Dan Everton (safetydan)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef _ROCKLIBC_H_
|
|
#define _ROCKLIBC_H_
|
|
|
|
#include <ctype.h>
|
|
#include "plugin.h"
|
|
|
|
#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
|
|
#include <errno.h>
|
|
#define PREFIX(_x_) sim_ ## _x_
|
|
#else
|
|
extern int errno;
|
|
#define EINVAL 22 /* Invalid argument */
|
|
#define ERANGE 34 /* Math result not representable */
|
|
#define PREFIX
|
|
#endif
|
|
|
|
#define __likely LIKELY
|
|
#define __unlikely UNLIKELY
|
|
|
|
/* Simple substitutions */
|
|
#define memcmp rb->memcmp
|
|
#define strlen rb->strlen
|
|
|
|
#endif /* _ROCKLIBC_H_ */
|
|
|