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