Add the remaining C99 wide character string to integer conversion functions.
Restrict qualifiers were added to the existing prototypes in <inttypes.h> and the typedef for wchar_t was removed.
This commit is contained in:
parent
04a42d5ee0
commit
1302dabd28
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@ -32,13 +32,6 @@
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#include <machine/_inttypes.h>
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#include <sys/stdint.h>
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#ifndef __cplusplus
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#ifndef _WCHAR_T_DECLARED
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typedef __wchar_t wchar_t;
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#define _WCHAR_T_DECLARED
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#endif
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#endif
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typedef struct {
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intmax_t quot; /* Quotient. */
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intmax_t rem; /* Remainder. */
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@ -50,9 +43,10 @@ imaxdiv_t imaxdiv(intmax_t, intmax_t) __pure2;
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intmax_t strtoimax(const char * __restrict, char ** __restrict, int);
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uintmax_t strtoumax(const char * __restrict, char ** __restrict, int);
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/* XXX: The following functions are missing the restrict type qualifier. */
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intmax_t wcstoimax(const wchar_t *, wchar_t **, int);
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uintmax_t wcstoumax(const wchar_t *, wchar_t **, int);
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intmax_t wcstoimax(const __wchar_t * __restrict,
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__wchar_t ** __restrict, int);
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uintmax_t wcstoumax(const __wchar_t * __restrict,
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__wchar_t ** __restrict, int);
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__END_DECLS
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#endif /* !_INTTYPES_H_ */
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@ -154,8 +154,12 @@ double wcstod(const wchar_t * __restrict, wchar_t ** __restrict);
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wchar_t *wcstok(wchar_t * __restrict, const wchar_t * __restrict,
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wchar_t ** __restrict);
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long wcstol(const wchar_t * __restrict, wchar_t ** __restrict, int);
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long long
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wcstoll(const wchar_t * __restrict, wchar_t ** __restrict, int);
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unsigned long
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wcstoul(const wchar_t * __restrict, wchar_t ** __restrict, int);
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unsigned long long
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wcstoull(const wchar_t * __restrict, wchar_t ** __restrict, int);
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wchar_t *wmemchr(const wchar_t *, wchar_t, size_t);
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int wmemcmp(const wchar_t *, const wchar_t *, size_t);
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wchar_t *wmemcpy(wchar_t * __restrict, const wchar_t * __restrict, size_t);
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@ -12,9 +12,10 @@ SRCS+= big5.c btowc.c collate.c collcmp.c euc.c fix_grouping.c frune.c \
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mskanji.c nl_langinfo.c nomacros.c none.c rune.c \
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runetype.c setinvalidrune.c setlocale.c setrunelocale.c table.c \
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tolower.c toupper.c utf2.c wcrtomb.c wcsrtombs.c wcsftime.c wcstod.c \
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wcstol.c \
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wcstoimax.c wcstol.c wcstoll.c \
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wcstombs.c \
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wcstoul.c wctob.c wctomb.c wctrans.c wctype.c wcwidth.c
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wcstoul.c wcstoull.c wcstoumax.c wctob.c wctomb.c wctrans.c wctype.c \
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wcwidth.c
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.if ${LIB} == "c"
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MAN+= btowc.3 \
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@ -48,7 +49,8 @@ MLINKS+=rune.3 fgetrune.3 rune.3 fputrune.3 rune.3 fungetrune.3 \
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rune.3 sputrune.3
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MLINKS+=setlocale.3 localeconv.3
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MLINKS+=towlower.3 towupper.3
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MLINKS+=wcstol.3 wcstoul.3
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MLINKS+=wcstol.3 wcstoul.3 wcstol.3 wcstoll.3 wcstol.3 wcstoull.3 \
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wcstol.3 wcstoimax.3 wcstol.3 wcstoumax.3
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MLINKS+=wctrans.3 towctrans.3
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MLINKS+=wctype.3 iswctype.3
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.endif
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@ -0,0 +1,128 @@
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if 0
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "from @(#)strtol.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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__FBSDID("FreeBSD: src/lib/libc/stdlib/strtoimax.c,v 1.8 2002/09/06 11:23:59 tjr Exp ");
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#endif
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__FBSDID("$FreeBSD$");
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#include <errno.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include <wctype.h>
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/*
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* Convert a wide character string to a intmax_t integer.
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*/
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intmax_t
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wcstoimax(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
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int base)
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{
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const wchar_t *s;
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uintmax_t acc;
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wchar_t c;
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uintmax_t cutoff;
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int neg, any, cutlim;
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/*
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* See strtoimax for comments as to the logic used.
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*/
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s = nptr;
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do {
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c = *s++;
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} while (iswspace(c));
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if (c == L'-') {
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neg = 1;
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c = *s++;
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} else {
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neg = 0;
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if (c == L'+')
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c = *s++;
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}
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if ((base == 0 || base == 16) &&
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c == L'0' && (*s == L'x' || *s == L'X')) {
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c = s[1];
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s += 2;
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base = 16;
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}
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if (base == 0)
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base = c == L'0' ? 8 : 10;
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acc = any = 0;
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if (base < 2 || base > 36)
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goto noconv;
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cutoff = neg ? (uintmax_t)-(INTMAX_MIN + INTMAX_MAX) + INTMAX_MAX
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: INTMAX_MAX;
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cutlim = cutoff % base;
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cutoff /= base;
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for ( ; ; c = *s++) {
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#ifdef notyet
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if (iswdigit(c))
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c = digittoint(c);
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else
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#endif
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if (c >= L'0' && c <= L'9')
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c -= L'0';
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else if (c >= L'A' && c <= L'Z')
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c -= L'A' - 10;
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else if (c >= 'a' && c <= 'z')
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c -= L'a' - 10;
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else
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break;
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if (c >= base)
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break;
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if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
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any = -1;
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else {
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any = 1;
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acc *= base;
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acc += c;
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}
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}
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if (any < 0) {
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acc = neg ? INTMAX_MIN : INTMAX_MAX;
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errno = ERANGE;
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} else if (!any) {
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noconv:
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errno = EINVAL;
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} else if (neg)
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acc = -acc;
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if (endptr != NULL)
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*endptr = (wchar_t *)(any ? s - 1 : nptr);
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return (acc);
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}
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@ -28,11 +28,17 @@
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.Dt WCSTOL 3
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.Os
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.Sh NAME
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.Nm wcstol , wcstoul
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.Nm wcstol , wcstoul ,
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.Nm wcstoll , wcstoull ,
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.Nm wcstoimax , wcstoumax
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.Nd "convert a wide character string value to a"
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.Vt long
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.Vt long ,
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.Vt "unsigned long" ,
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.Vt "long long" ,
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.Vt "unsigned long long" ,
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.Vt intmax_t
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or
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.Vt "unsigned long"
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.Vt uintmax_t
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integer
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.Sh LIBRARY
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.Lb libc
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@ -42,28 +48,47 @@ integer
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.Fn wcstol "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.Ft "unsigned long"
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.Fn wcstoul "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.Ft "long long"
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.Fn wcstoll "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.Ft "unsigned long long"
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.Fn wcstoull "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.In inttypes.h
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.Ft intmax_t
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.Fn wcstoimax "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.Ft uintmax_t
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.Fn wcstoumax "const wchar_t * restrict nptr" "wchar_t ** restrict endptr" "int base"
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.Sh DESCRIPTION
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The
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.Fn wcstol
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.Fn wcstol ,
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.Fn wcstoul ,
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.Fn wcstoll ,
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.Fn wcstoull ,
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.Fn wcstoimax
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and
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.Fn wcstoul
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.Fn wcstoumax
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functions are wide-character versions of the
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.Fn strtol
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.Fn strtol ,
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.Fn strtoul ,
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.Fn strtoll ,
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.Fn strtoull ,
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.Fn strtoimax
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and
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.Fn strtoul
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.Fn strtoumax
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functions.
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Refer to
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.Xr strtol 3
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and
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.Xr strtoul 3
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Refer to their manual pages (for example
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.Xr strtol 3 )
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for details.
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.Sh SEE ALSO
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.Xr strtol 3 ,
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.Xr strtoul 3
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.Sh STANDARDS
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The
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.Fn wcstol
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.Fn wcstol ,
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.Fn wcstoul ,
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.Fn wcstoll ,
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.Fn wcstoull ,
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.Fn wcstoimax
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and
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.Fn wcstoul
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.Fn wcstoumax
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functions conform to
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.St -isoC-99 .
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@ -0,0 +1,127 @@
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if 0
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)strtoq.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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__FBSDID("FreeBSD: src/lib/libc/stdlib/strtoll.c,v 1.19 2002/09/06 11:23:59 tjr Exp ");
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#endif
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__FBSDID("$FreeBSD$");
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#include <errno.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include <wctype.h>
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/*
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* Convert a wide character string to a long long integer.
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*/
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long long
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wcstoll(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr, int base)
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{
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const wchar_t *s;
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unsigned long long acc;
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wchar_t c;
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unsigned long long cutoff;
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int neg, any, cutlim;
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/*
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* See strtoll for comments as to the logic used.
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*/
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s = nptr;
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do {
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c = *s++;
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} while (iswspace(c));
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if (c == L'-') {
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neg = 1;
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c = *s++;
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} else {
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neg = 0;
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if (c == L'+')
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c = *s++;
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}
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if ((base == 0 || base == 16) &&
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c == L'0' && (*s == L'x' || *s == L'X')) {
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c = s[1];
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s += 2;
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base = 16;
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}
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if (base == 0)
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base = c == L'0' ? 8 : 10;
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acc = any = 0;
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if (base < 2 || base > 36)
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goto noconv;
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cutoff = neg ? (unsigned long long)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX
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: LLONG_MAX;
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cutlim = cutoff % base;
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cutoff /= base;
|
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for ( ; ; c = *s++) {
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#ifdef notyet
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if (iswdigit(c))
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c = digittoint(c);
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else
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#endif
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if (c >= L'0' && c <= L'9')
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c -= L'0';
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else if (c >= L'A' && c <= L'Z')
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c -= L'A' - 10;
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else if (c >= L'a' && c <= L'z')
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c -= L'a' - 10;
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else
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break;
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if (c >= base)
|
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break;
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if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
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any = -1;
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else {
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any = 1;
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acc *= base;
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acc += c;
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}
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}
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if (any < 0) {
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acc = neg ? LLONG_MIN : LLONG_MAX;
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errno = ERANGE;
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} else if (!any) {
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noconv:
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errno = EINVAL;
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} else if (neg)
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acc = -acc;
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if (endptr != NULL)
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*endptr = (wchar_t *)(any ? s - 1 : nptr);
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return (acc);
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}
|
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@ -0,0 +1,126 @@
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/*-
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* Copyright (c) 1992, 1993
|
||||
* 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.
|
||||
*/
|
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|
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#include <sys/cdefs.h>
|
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#if 0
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
static char sccsid[] = "@(#)strtouq.c 8.1 (Berkeley) 6/4/93";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
__FBSDID("FreeBSD: src/lib/libc/stdlib/strtoull.c,v 1.18 2002/09/06 11:23:59 tjr Exp ");
|
||||
#endif
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <errno.h>
|
||||
#include <limits.h>
|
||||
#include <stdlib.h>
|
||||
#include <wchar.h>
|
||||
#include <wctype.h>
|
||||
|
||||
/*
|
||||
* Convert a wide character string to an unsigned long long integer.
|
||||
*/
|
||||
unsigned long long
|
||||
wcstoull(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
|
||||
int base)
|
||||
{
|
||||
const wchar_t *s;
|
||||
unsigned long long acc;
|
||||
wchar_t c;
|
||||
unsigned long long cutoff;
|
||||
int neg, any, cutlim;
|
||||
|
||||
/*
|
||||
* See strtoull for comments as to the logic used.
|
||||
*/
|
||||
s = nptr;
|
||||
do {
|
||||
c = *s++;
|
||||
} while (iswspace(c));
|
||||
if (c == L'-') {
|
||||
neg = 1;
|
||||
c = *s++;
|
||||
} else {
|
||||
neg = 0;
|
||||
if (c == L'+')
|
||||
c = *s++;
|
||||
}
|
||||
if ((base == 0 || base == 16) &&
|
||||
c == L'0' && (*s == L'x' || *s == L'X')) {
|
||||
c = s[1];
|
||||
s += 2;
|
||||
base = 16;
|
||||
}
|
||||
if (base == 0)
|
||||
base = c == L'0' ? 8 : 10;
|
||||
acc = any = 0;
|
||||
if (base < 2 || base > 36)
|
||||
goto noconv;
|
||||
|
||||
cutoff = ULLONG_MAX / base;
|
||||
cutlim = ULLONG_MAX % base;
|
||||
for ( ; ; c = *s++) {
|
||||
#ifdef notyet
|
||||
if (iswdigit(c))
|
||||
c = digittoint(c);
|
||||
else
|
||||
#endif
|
||||
if (c >= L'0' && c <= L'9')
|
||||
c -= L'0';
|
||||
else if (c >= L'A' && c <= L'Z')
|
||||
c -= L'A' - 10;
|
||||
else if (c >= L'a' && c <= L'z')
|
||||
c -= L'a' - 10;
|
||||
else
|
||||
break;
|
||||
if (c >= base)
|
||||
break;
|
||||
if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
|
||||
any = -1;
|
||||
else {
|
||||
any = 1;
|
||||
acc *= base;
|
||||
acc += c;
|
||||
}
|
||||
}
|
||||
if (any < 0) {
|
||||
acc = ULLONG_MAX;
|
||||
errno = ERANGE;
|
||||
} else if (!any) {
|
||||
noconv:
|
||||
errno = EINVAL;
|
||||
} else if (neg)
|
||||
acc = -acc;
|
||||
if (endptr != NULL)
|
||||
*endptr = (wchar_t *)(any ? s - 1 : nptr);
|
||||
return (acc);
|
||||
}
|
|
@ -0,0 +1,126 @@
|
|||
/*-
|
||||
* Copyright (c) 1992, 1993
|
||||
* 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 <sys/cdefs.h>
|
||||
#if 0
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
static char sccsid[] = "from @(#)strtoul.c 8.1 (Berkeley) 6/4/93";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
__FBSDID("FreeBSD: src/lib/libc/stdlib/strtoumax.c,v 1.8 2002/09/06 11:23:59 tjr Exp ");
|
||||
#endif
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <errno.h>
|
||||
#include <inttypes.h>
|
||||
#include <stdlib.h>
|
||||
#include <wchar.h>
|
||||
#include <wctype.h>
|
||||
|
||||
/*
|
||||
* Convert a wide character string to a uintmax_t integer.
|
||||
*/
|
||||
uintmax_t
|
||||
wcstoumax(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
|
||||
int base)
|
||||
{
|
||||
const wchar_t *s;
|
||||
uintmax_t acc;
|
||||
wchar_t c;
|
||||
uintmax_t cutoff;
|
||||
int neg, any, cutlim;
|
||||
|
||||
/*
|
||||
* See strtoimax for comments as to the logic used.
|
||||
*/
|
||||
s = nptr;
|
||||
do {
|
||||
c = *s++;
|
||||
} while (iswspace(c));
|
||||
if (c == L'-') {
|
||||
neg = 1;
|
||||
c = *s++;
|
||||
} else {
|
||||
neg = 0;
|
||||
if (c == L'+')
|
||||
c = *s++;
|
||||
}
|
||||
if ((base == 0 || base == 16) &&
|
||||
c == L'0' && (*s == L'x' || *s == L'X')) {
|
||||
c = s[1];
|
||||
s += 2;
|
||||
base = 16;
|
||||
}
|
||||
if (base == 0)
|
||||
base = c == L'0' ? 8 : 10;
|
||||
acc = any = 0;
|
||||
if (base < 2 || base > 36)
|
||||
goto noconv;
|
||||
|
||||
cutoff = UINTMAX_MAX / base;
|
||||
cutlim = UINTMAX_MAX % base;
|
||||
for ( ; ; c = *s++) {
|
||||
#ifdef notyet
|
||||
if (iswdigit(c))
|
||||
c = digittoint(c);
|
||||
else
|
||||
#endif
|
||||
if (c >= L'0' && c <= L'9')
|
||||
c -= L'0';
|
||||
else if (c >= L'A' && c <= L'Z')
|
||||
c -= L'A' - 10;
|
||||
else if (c >= L'a' && c <= L'z')
|
||||
c -= L'a' - 10;
|
||||
else
|
||||
break;
|
||||
if (c >= base)
|
||||
break;
|
||||
if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
|
||||
any = -1;
|
||||
else {
|
||||
any = 1;
|
||||
acc *= base;
|
||||
acc += c;
|
||||
}
|
||||
}
|
||||
if (any < 0) {
|
||||
acc = UINTMAX_MAX;
|
||||
errno = ERANGE;
|
||||
} else if (!any) {
|
||||
noconv:
|
||||
errno = EINVAL;
|
||||
} else if (neg)
|
||||
acc = -acc;
|
||||
if (endptr != NULL)
|
||||
*endptr = (wchar_t *)(any ? s - 1 : nptr);
|
||||
return (acc);
|
||||
}
|
Loading…
Reference in New Issue