2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Copyright (c) 2011 The FreeBSD Foundation
9 * Portions of this software were developed by David Chisnall
10 * under sponsorship from the FreeBSD Foundation.
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13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 #include "xlocale_private.h"
45 * Convert a wide character string to a long long integer.
48 wcstoll_l(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
49 int base, locale_t locale)
52 unsigned long long acc;
54 unsigned long long cutoff;
59 * See strtoll for comments as to the logic used.
64 } while (iswspace_l(c, locale));
73 if ((base == 0 || base == 16) &&
74 c == L'0' && (*s == L'x' || *s == L'X') &&
75 ((s[1] >= L'0' && s[1] <= L'9') ||
76 (s[1] >= L'A' && s[1] <= L'F') ||
77 (s[1] >= L'a' && s[1] <= L'f'))) {
82 if ((base == 0 || base == 2) &&
83 c == L'0' && (*s == L'b' || *s == L'B') &&
84 (s[1] >= L'0' && s[1] <= L'1')) {
90 base = c == L'0' ? 8 : 10;
92 if (base < 2 || base > 36)
95 cutoff = neg ? (unsigned long long)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX
97 cutlim = cutoff % base;
101 if (iswdigit_l(c, locale))
102 c = digittoint_l(c, locale);
105 if (c >= L'0' && c <= L'9')
107 else if (c >= L'A' && c <= L'Z')
109 else if (c >= L'a' && c <= L'z')
115 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
124 acc = neg ? LLONG_MIN : LLONG_MAX;
132 *endptr = (wchar_t *)(any ? s - 1 : nptr);
136 wcstoll(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr, int base)
138 return wcstoll_l(nptr, endptr, base, __get_locale());