1// -*- C++ -*-
2//===-------------------- support/win32/locale_win32.cpp ------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#include <locale>
11#include <cstdarg> // va_start, va_end
12#include <memory>
13#include <type_traits>
14
15int __libcpp_vasprintf(char **sptr, const char *__restrict fmt, va_list ap);
16
17using std::__libcpp_locale_guard;
18
19// FIXME: base currently unused. Needs manual work to construct the new locale
20locale_t newlocale( int mask, const char * locale, locale_t /*base*/ )
21{
22    return {_create_locale( LC_ALL, locale ), locale};
23}
24
25decltype(MB_CUR_MAX) MB_CUR_MAX_L( locale_t __l )
26{
27#if defined(_LIBCPP_MSVCRT)
28  return ___mb_cur_max_l_func(__l);
29#else
30  __libcpp_locale_guard __current(__l);
31  return MB_CUR_MAX;
32#endif
33}
34
35
36lconv *localeconv_l( locale_t loc )
37{
38    __libcpp_locale_guard __current(loc);
39    return localeconv();
40}
41size_t mbrlen_l( const char *__restrict s, size_t n,
42                 mbstate_t *__restrict ps, locale_t loc )
43{
44    __libcpp_locale_guard __current(loc);
45    return mbrlen( s, n, ps );
46}
47size_t mbsrtowcs_l( wchar_t *__restrict dst, const char **__restrict src,
48                    size_t len, mbstate_t *__restrict ps, locale_t loc )
49{
50    __libcpp_locale_guard __current(loc);
51    return mbsrtowcs( dst, src, len, ps );
52}
53size_t wcrtomb_l( char *__restrict s, wchar_t wc, mbstate_t *__restrict ps,
54                  locale_t loc )
55{
56    __libcpp_locale_guard __current(loc);
57    return wcrtomb( s, wc, ps );
58}
59size_t mbrtowc_l( wchar_t *__restrict pwc, const char *__restrict s,
60                  size_t n, mbstate_t *__restrict ps, locale_t loc )
61{
62    __libcpp_locale_guard __current(loc);
63    return mbrtowc( pwc, s, n, ps );
64}
65size_t mbsnrtowcs_l( wchar_t *__restrict dst, const char **__restrict src,
66                     size_t nms, size_t len, mbstate_t *__restrict ps, locale_t loc )
67{
68    __libcpp_locale_guard __current(loc);
69    return mbsnrtowcs( dst, src, nms, len, ps );
70}
71size_t wcsnrtombs_l( char *__restrict dst, const wchar_t **__restrict src,
72                     size_t nwc, size_t len, mbstate_t *__restrict ps, locale_t loc )
73{
74    __libcpp_locale_guard __current(loc);
75    return wcsnrtombs( dst, src, nwc, len, ps );
76}
77wint_t btowc_l( int c, locale_t loc )
78{
79    __libcpp_locale_guard __current(loc);
80    return btowc( c );
81}
82int wctob_l( wint_t c, locale_t loc )
83{
84    __libcpp_locale_guard __current(loc);
85    return wctob( c );
86}
87
88int snprintf_l(char *ret, size_t n, locale_t loc, const char *format, ...)
89{
90    va_list ap;
91    va_start( ap, format );
92#if defined(_LIBCPP_MSVCRT)
93    // FIXME: Remove usage of internal CRT function and globals.
94    int result = __stdio_common_vsprintf(
95        _CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR,
96        ret, n, format, loc, ap);
97#else
98    __libcpp_locale_guard __current(loc);
99    int result = vsnprintf( ret, n, format, ap );
100#endif
101    va_end(ap);
102    return result;
103}
104
105int asprintf_l( char **ret, locale_t loc, const char *format, ... )
106{
107    va_list ap;
108    va_start( ap, format );
109    int result = vasprintf_l( ret, loc, format, ap );
110    va_end(ap);
111    return result;
112}
113int vasprintf_l( char **ret, locale_t loc, const char *format, va_list ap )
114{
115    __libcpp_locale_guard __current(loc);
116    return __libcpp_vasprintf( ret, format, ap );
117}
118
119#if !defined(_LIBCPP_MSVCRT)
120float strtof_l(const char* nptr, char** endptr, locale_t loc) {
121  __libcpp_locale_guard __current(loc);
122  return strtof(nptr, endptr);
123}
124
125long double strtold_l(const char* nptr, char** endptr, locale_t loc) {
126  __libcpp_locale_guard __current(loc);
127  return strtold(nptr, endptr);
128}
129#endif
130