mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-28 14:10:34 +00:00
177 lines
6.9 KiB
C
177 lines
6.9 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 tarball for details.
|
|
*/
|
|
|
|
#if __GNUC_PREREQ(4,1)
|
|
# pragma GCC visibility push(hidden)
|
|
#endif
|
|
|
|
/* Provides extern declarations of functions */
|
|
#define DECLARE_STR_CONV(type, T, UT) \
|
|
\
|
|
unsigned type xstrto##UT##_range_sfx(const char *str, int b, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
unsigned type xstrto##UT##_range(const char *str, int b, unsigned type l, unsigned type u) FAST_FUNC; \
|
|
unsigned type xstrto##UT##_sfx(const char *str, int b, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
unsigned type xstrto##UT(const char *str, int b) FAST_FUNC; \
|
|
unsigned type xato##UT##_range_sfx(const char *str, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
unsigned type xato##UT##_range(const char *str, unsigned type l, unsigned type u) FAST_FUNC; \
|
|
unsigned type xato##UT##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
unsigned type xato##UT(const char *str) FAST_FUNC; \
|
|
type xstrto##T##_range_sfx(const char *str, int b, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
type xstrto##T##_range(const char *str, int b, type l, type u) FAST_FUNC; \
|
|
type xato##T##_range_sfx(const char *str, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
type xato##T##_range(const char *str, type l, type u) FAST_FUNC; \
|
|
type xato##T##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \
|
|
type xato##T(const char *str) FAST_FUNC; \
|
|
|
|
/* Unsigned long long functions always exist */
|
|
DECLARE_STR_CONV(long long, ll, ull)
|
|
|
|
|
|
/* Provides inline definitions of functions */
|
|
/* (useful for mapping them to the type of the same width) */
|
|
#define DEFINE_EQUIV_STR_CONV(narrow, N, W, UN, UW) \
|
|
\
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xstrto##UN##_range_sfx(const char *str, int b, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \
|
|
{ return xstrto##UW##_range_sfx(str, b, l, u, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xstrto##UN##_range(const char *str, int b, unsigned narrow l, unsigned narrow u) \
|
|
{ return xstrto##UW##_range(str, b, l, u); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xstrto##UN##_sfx(const char *str, int b, const struct suffix_mult *sfx) \
|
|
{ return xstrto##UW##_sfx(str, b, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xstrto##UN(const char *str, int b) \
|
|
{ return xstrto##UW(str, b); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xato##UN##_range_sfx(const char *str, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \
|
|
{ return xato##UW##_range_sfx(str, l, u, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xato##UN##_range(const char *str, unsigned narrow l, unsigned narrow u) \
|
|
{ return xato##UW##_range(str, l, u); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xato##UN##_sfx(const char *str, const struct suffix_mult *sfx) \
|
|
{ return xato##UW##_sfx(str, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
unsigned narrow xato##UN(const char *str) \
|
|
{ return xato##UW(str); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xstrto##N##_range_sfx(const char *str, int b, narrow l, narrow u, const struct suffix_mult *sfx) \
|
|
{ return xstrto##W##_range_sfx(str, b, l, u, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xstrto##N##_range(const char *str, int b, narrow l, narrow u) \
|
|
{ return xstrto##W##_range(str, b, l, u); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xato##N##_range_sfx(const char *str, narrow l, narrow u, const struct suffix_mult *sfx) \
|
|
{ return xato##W##_range_sfx(str, l, u, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xato##N##_range(const char *str, narrow l, narrow u) \
|
|
{ return xato##W##_range(str, l, u); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xato##N##_sfx(const char *str, const struct suffix_mult *sfx) \
|
|
{ return xato##W##_sfx(str, sfx); } \
|
|
static ALWAYS_INLINE \
|
|
narrow xato##N(const char *str) \
|
|
{ return xato##W(str); } \
|
|
|
|
/* If long == long long, then just map them one-to-one */
|
|
#if ULONG_MAX == ULLONG_MAX
|
|
DEFINE_EQUIV_STR_CONV(long, l, ll, ul, ull)
|
|
#else
|
|
/* Else provide extern defs */
|
|
DECLARE_STR_CONV(long, l, ul)
|
|
#endif
|
|
|
|
/* Same for int -> [long] long */
|
|
#if UINT_MAX == ULLONG_MAX
|
|
DEFINE_EQUIV_STR_CONV(int, i, ll, u, ull)
|
|
#elif UINT_MAX == ULONG_MAX
|
|
DEFINE_EQUIV_STR_CONV(int, i, l, u, ul)
|
|
#else
|
|
DECLARE_STR_CONV(int, i, u)
|
|
#endif
|
|
|
|
/* Specialized */
|
|
|
|
int BUG_xatou32_unimplemented(void);
|
|
static ALWAYS_INLINE uint32_t xatou32(const char *numstr)
|
|
{
|
|
if (UINT_MAX == 0xffffffff)
|
|
return xatou(numstr);
|
|
if (ULONG_MAX == 0xffffffff)
|
|
return xatoul(numstr);
|
|
return BUG_xatou32_unimplemented();
|
|
}
|
|
|
|
/* Non-aborting kind of convertors: bb_strto[u][l]l */
|
|
|
|
/* On exit: errno = 0 only if there was non-empty, '\0' terminated value
|
|
* errno = EINVAL if value was not '\0' terminated, but otherwise ok
|
|
* Return value is still valid, caller should just check whether end[0]
|
|
* is a valid terminating char for particular case. OTOH, if caller
|
|
* requires '\0' terminated input, [s]he can just check errno == 0.
|
|
* errno = ERANGE if value had alphanumeric terminating char ("1234abcg").
|
|
* errno = ERANGE if value is out of range, missing, etc.
|
|
* errno = ERANGE if value had minus sign for strtouXX (even "-0" is not ok )
|
|
* return value is all-ones in this case.
|
|
*/
|
|
|
|
unsigned long long bb_strtoull(const char *arg, char **endp, int base) FAST_FUNC;
|
|
long long bb_strtoll(const char *arg, char **endp, int base) FAST_FUNC;
|
|
|
|
#if ULONG_MAX == ULLONG_MAX
|
|
static ALWAYS_INLINE
|
|
unsigned long bb_strtoul(const char *arg, char **endp, int base)
|
|
{ return bb_strtoull(arg, endp, base); }
|
|
static ALWAYS_INLINE
|
|
long bb_strtol(const char *arg, char **endp, int base)
|
|
{ return bb_strtoll(arg, endp, base); }
|
|
#else
|
|
unsigned long bb_strtoul(const char *arg, char **endp, int base) FAST_FUNC;
|
|
long bb_strtol(const char *arg, char **endp, int base) FAST_FUNC;
|
|
#endif
|
|
|
|
#if UINT_MAX == ULLONG_MAX
|
|
static ALWAYS_INLINE
|
|
unsigned bb_strtou(const char *arg, char **endp, int base)
|
|
{ return bb_strtoull(arg, endp, base); }
|
|
static ALWAYS_INLINE
|
|
int bb_strtoi(const char *arg, char **endp, int base)
|
|
{ return bb_strtoll(arg, endp, base); }
|
|
#elif UINT_MAX == ULONG_MAX
|
|
static ALWAYS_INLINE
|
|
unsigned bb_strtou(const char *arg, char **endp, int base)
|
|
{ return bb_strtoul(arg, endp, base); }
|
|
static ALWAYS_INLINE
|
|
int bb_strtoi(const char *arg, char **endp, int base)
|
|
{ return bb_strtol(arg, endp, base); }
|
|
#else
|
|
unsigned bb_strtou(const char *arg, char **endp, int base) FAST_FUNC;
|
|
int bb_strtoi(const char *arg, char **endp, int base) FAST_FUNC;
|
|
#endif
|
|
|
|
int BUG_bb_strtou32_unimplemented(void);
|
|
static ALWAYS_INLINE
|
|
uint32_t bb_strtou32(const char *arg, char **endp, int base)
|
|
{
|
|
if (sizeof(uint32_t) == sizeof(unsigned))
|
|
return bb_strtou(arg, endp, base);
|
|
if (sizeof(uint32_t) == sizeof(unsigned long))
|
|
return bb_strtoul(arg, endp, base);
|
|
return BUG_bb_strtou32_unimplemented();
|
|
}
|
|
|
|
/* Floating point */
|
|
|
|
double bb_strtod(const char *arg, char **endp) FAST_FUNC;
|
|
|
|
#if __GNUC_PREREQ(4,1)
|
|
# pragma GCC visibility pop
|
|
#endif
|