busybox/libbb/xatonum.c
Denys Vlasenko c72b43c2f0 Commonalize typical [b,]k,m suffix struct
function                                             old     new   delta
bkm_suffixes                                           -      32     +32
static.km_suffixes                                    24       -     -24
suffixes                                              32       -     -32
static.bkm                                            32       -     -32
head_tail_suffixes                                    32       -     -32
------------------------------------------------------------------------------
(add/remove: 2/6 grow/shrink: 0/0 up/down: 72/-160)           Total: -88 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-13 23:49:45 +02:00

78 lines
1.8 KiB
C

/* vi: set sw=4 ts=4: */
/*
* ascii-to-numbers implementations for busybox
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
#include "libbb.h"
#define type long long
#define xstrtou(rest) xstrtoull##rest
#define xstrto(rest) xstrtoll##rest
#define xatou(rest) xatoull##rest
#define xato(rest) xatoll##rest
#define XSTR_UTYPE_MAX ULLONG_MAX
#define XSTR_TYPE_MAX LLONG_MAX
#define XSTR_TYPE_MIN LLONG_MIN
#define XSTR_STRTOU strtoull
#include "xatonum_template.c"
#if ULONG_MAX != ULLONG_MAX
#define type long
#define xstrtou(rest) xstrtoul##rest
#define xstrto(rest) xstrtol##rest
#define xatou(rest) xatoul##rest
#define xato(rest) xatol##rest
#define XSTR_UTYPE_MAX ULONG_MAX
#define XSTR_TYPE_MAX LONG_MAX
#define XSTR_TYPE_MIN LONG_MIN
#define XSTR_STRTOU strtoul
#include "xatonum_template.c"
#endif
#if UINT_MAX != ULONG_MAX
static ALWAYS_INLINE
unsigned bb_strtoui(const char *str, char **end, int b)
{
unsigned long v = strtoul(str, end, b);
if (v > UINT_MAX) {
errno = ERANGE;
return UINT_MAX;
}
return v;
}
#define type int
#define xstrtou(rest) xstrtou##rest
#define xstrto(rest) xstrtoi##rest
#define xatou(rest) xatou##rest
#define xato(rest) xatoi##rest
#define XSTR_UTYPE_MAX UINT_MAX
#define XSTR_TYPE_MAX INT_MAX
#define XSTR_TYPE_MIN INT_MIN
/* libc has no strtoui, so we need to create/use our own */
#define XSTR_STRTOU bb_strtoui
#include "xatonum_template.c"
#endif
/* A few special cases */
int FAST_FUNC xatoi_positive(const char *numstr)
{
return xatou_range(numstr, 0, INT_MAX);
}
uint16_t FAST_FUNC xatou16(const char *numstr)
{
return xatou_range(numstr, 0, 0xffff);
}
const struct suffix_mult bkm_suffixes[] = {
{ "b", 512 },
{ "k", 1024 },
{ "m", 1024*1024 },
{ "", 0 }
};