source: branches/2.2.5/mindi-busybox/libbb/xatonum.c @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 13 years ago

Update to busybox 1.7.2

  • Property svn:eol-style set to native
File size: 1.6 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * ascii-to-numbers implementations for busybox
4 *
5 * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
6 *
7 * Licensed under GPLv2, see file LICENSE in this tarball for details.
8 */
9
10#include "libbb.h"
11
12#define type long long
13#define xstrtou(rest) xstrtoull##rest
14#define xstrto(rest) xstrtoll##rest
15#define xatou(rest) xatoull##rest
16#define xato(rest) xatoll##rest
17#define XSTR_UTYPE_MAX ULLONG_MAX
18#define XSTR_TYPE_MAX LLONG_MAX
19#define XSTR_TYPE_MIN LLONG_MIN
20#define XSTR_STRTOU strtoull
21#include "xatonum_template.c"
22
23#if ULONG_MAX != ULLONG_MAX
24#define type long
25#define xstrtou(rest) xstrtoul##rest
26#define xstrto(rest) xstrtol##rest
27#define xatou(rest) xatoul##rest
28#define xato(rest) xatol##rest
29#define XSTR_UTYPE_MAX ULONG_MAX
30#define XSTR_TYPE_MAX LONG_MAX
31#define XSTR_TYPE_MIN LONG_MIN
32#define XSTR_STRTOU strtoul
33#include "xatonum_template.c"
34#endif
35
36#if UINT_MAX != ULONG_MAX
37static ALWAYS_INLINE
38unsigned bb_strtoui(const char *str, char **end, int b)
39{
40    unsigned long v = strtoul(str, end, b);
41    if (v > UINT_MAX) {
42        errno = ERANGE;
43        return UINT_MAX;
44    }
45    return v;
46}
47#define type int
48#define xstrtou(rest) xstrtou##rest
49#define xstrto(rest) xstrtoi##rest
50#define xatou(rest) xatou##rest
51#define xato(rest) xatoi##rest
52#define XSTR_UTYPE_MAX UINT_MAX
53#define XSTR_TYPE_MAX INT_MAX
54#define XSTR_TYPE_MIN INT_MIN
55/* libc has no strtoui, so we need to create/use our own */
56#define XSTR_STRTOU bb_strtoui
57#include "xatonum_template.c"
58#endif
59
60/* A few special cases */
61
62int xatoi_u(const char *numstr)
63{
64    return xatou_range(numstr, 0, INT_MAX);
65}
66
67uint16_t xatou16(const char *numstr)
68{
69    return xatou_range(numstr, 0, 0xffff);
70}
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