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Diffstat (limited to 'newlib/libc/stdlib/wcstoll.c')
| -rw-r--r-- | newlib/libc/stdlib/wcstoll.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/wcstoll.c b/newlib/libc/stdlib/wcstoll.c new file mode 100644 index 000000000..75eda9f6c --- /dev/null +++ b/newlib/libc/stdlib/wcstoll.c @@ -0,0 +1,138 @@ +/* +FUNCTION + <<wcstoll>>---wide string to long long + +INDEX + wcstoll +INDEX + _wcstoll_r + +ANSI_SYNOPSIS + #include <wchar.h> + long long wcstoll(const wchar_t *<[s]>, wchar_t **<[ptr]>,int <[base]>); + + long long _wcstoll_r(void *<[reent]>, + const wchar_t *<[s]>, wchar_t **<[ptr]>,int <[base]>); + +TRAD_SYNOPSIS + #include <stdlib.h> + long long wcstoll (<[s]>, <[ptr]>, <[base]>) + const wchar_t *<[s]>; + wchar_t **<[ptr]>; + int <[base]>; + + long long _wcstoll_r (<[reent]>, <[s]>, <[ptr]>, <[base]>) + wchar_t *<[reent]>; + const wchar_t *<[s]>; + wchar_t **<[ptr]>; + int <[base]>; + +DESCRIPTION +The function <<wcstoll>> converts the wide string <<*<[s]>>> to +a <<long long>>. First, it breaks down the string into three parts: +leading whitespace, which is ignored; a subject string consisting +of characters resembling an integer in the radix specified by <[base]>; +and a trailing portion consisting of zero or more unparseable characters, +and always including the terminating null character. Then, it attempts +to convert the subject string into a <<long long>> and returns the +result. + +If the value of <[base]> is 0, the subject string is expected to look +like a normal C integer constant: an optional sign, a possible `<<0x>>' +indicating a hexadecimal base, and a number. If <[base]> is between +2 and 36, the expected form of the subject is a sequence of letters +and digits representing an integer in the radix specified by <[base]>, +with an optional plus or minus sign. The letters <<a>>--<<z>> (or, +equivalently, <<A>>--<<Z>>) are used to signify values from 10 to 35; +only letters whose ascribed values are less than <[base]> are +permitted. If <[base]> is 16, a leading <<0x>> is permitted. + +The subject sequence is the longest initial sequence of the input +string that has the expected form, starting with the first +non-whitespace character. If the string is empty or consists entirely +of whitespace, or if the first non-whitespace character is not a +permissible letter or digit, the subject string is empty. + +If the subject string is acceptable, and the value of <[base]> is zero, +<<wcstoll>> attempts to determine the radix from the input string. A +string with a leading <<0x>> is treated as a hexadecimal value; a string with +a leading 0 and no <<x>> is treated as octal; all other strings are +treated as decimal. If <[base]> is between 2 and 36, it is used as the +conversion radix, as described above. If the subject string begins with +a minus sign, the value is negated. Finally, a pointer to the first +character past the converted subject string is stored in <[ptr]>, if +<[ptr]> is not <<NULL>>. + +If the subject string is empty (or not in acceptable form), no conversion +is performed and the value of <[s]> is stored in <[ptr]> (if <[ptr]> is +not <<NULL>>). + +The alternate function <<_wcstoll_r>> is a reentrant version. The +extra argument <[reent]> is a pointer to a reentrancy structure. + +RETURNS +<<wcstoll>> returns the converted value, if any. If no conversion was +made, 0 is returned. + +<<wcstoll>> returns <<LONG_LONG_MAX>> or <<LONG_LONG_MIN>> if the magnitude of +the converted value is too large, and sets <<errno>> to <<ERANGE>>. + +PORTABILITY +<<wcstoll>> is ANSI. + +No supporting OS subroutines are required. +*/ + +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include <_ansi.h> +#include <limits.h> +#include <wctype.h> +#include <errno.h> +#include <wchar.h> +#include <reent.h> + +#ifndef _REENT_ONLY + +long long +_DEFUN (wcstoll, (s, ptr, base), + _CONST wchar_t *s _AND + wchar_t **ptr _AND + int base) +{ + return _wcstoll_r (_REENT, s, ptr, base); +} + +#endif |