| /* 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. |
| */ |
| |
| PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
| |
| /* 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 xstrto##T(const char *str, int b) 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 xstrto##N(const char *str, int b) \ |
| { return xstrto##W(str, b); } \ |
| 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; |
| |
| POP_SAVED_FUNCTION_VISIBILITY |