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      1 // -*- C++ -*-
      2 //===---------------------- __bsd_locale_fallbacks.h ----------------------===//
      3 //
      4 //                     The LLVM Compiler Infrastructure
      5 //
      6 // This file is dual licensed under the MIT and the University of Illinois Open
      7 // Source Licenses. See LICENSE.TXT for details.
      8 //
      9 //===----------------------------------------------------------------------===//
     10 // The BSDs have lots of *_l functions.  This file provides reimplementations
     11 // of those functions for non-BSD platforms.
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
     15 #define _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
     16 
     17 #include <stdlib.h>
     18 #include <memory>
     19 
     20 _LIBCPP_BEGIN_NAMESPACE_STD
     21 
     22 typedef _VSTD::remove_pointer<locale_t>::type __use_locale_struct;
     23 typedef _VSTD::unique_ptr<__use_locale_struct, decltype(&uselocale)> __locale_raii;
     24 
     25 inline _LIBCPP_ALWAYS_INLINE
     26 decltype(MB_CUR_MAX) __libcpp_mb_cur_max_l(locale_t __l)
     27 {
     28     __locale_raii __current( uselocale(__l), uselocale );
     29     return MB_CUR_MAX;
     30 }
     31 
     32 inline _LIBCPP_ALWAYS_INLINE
     33 wint_t __libcpp_btowc_l(int __c, locale_t __l)
     34 {
     35     __locale_raii __current( uselocale(__l), uselocale );
     36     return btowc(__c);
     37 }
     38 
     39 inline _LIBCPP_ALWAYS_INLINE
     40 int __libcpp_wctob_l(wint_t __c, locale_t __l)
     41 {
     42     __locale_raii __current( uselocale(__l), uselocale );
     43     return wctob(__c);
     44 }
     45 
     46 inline _LIBCPP_ALWAYS_INLINE
     47 size_t __libcpp_wcsnrtombs_l(char *__dest, const wchar_t **__src, size_t __nwc,
     48                          size_t __len, mbstate_t *__ps, locale_t __l)
     49 {
     50     __locale_raii __current( uselocale(__l), uselocale );
     51     return wcsnrtombs(__dest, __src, __nwc, __len, __ps);
     52 }
     53 
     54 inline _LIBCPP_ALWAYS_INLINE
     55 size_t __libcpp_wcrtomb_l(char *__s, wchar_t __wc, mbstate_t *__ps, locale_t __l)
     56 {
     57     __locale_raii __current( uselocale(__l), uselocale );
     58     return wcrtomb(__s, __wc, __ps);
     59 }
     60 
     61 inline _LIBCPP_ALWAYS_INLINE
     62 size_t __libcpp_mbsnrtowcs_l(wchar_t * __dest, const char **__src, size_t __nms,
     63                       size_t __len, mbstate_t *__ps, locale_t __l)
     64 {
     65     __locale_raii __current( uselocale(__l), uselocale );
     66     return mbsnrtowcs(__dest, __src, __nms, __len, __ps);
     67 }
     68 
     69 inline _LIBCPP_ALWAYS_INLINE
     70 size_t __libcpp_mbrtowc_l(wchar_t *__pwc, const char *__s, size_t __n,
     71                    mbstate_t *__ps, locale_t __l)
     72 {
     73     __locale_raii __current( uselocale(__l), uselocale );
     74     return mbrtowc(__pwc, __s, __n, __ps);
     75 }
     76 
     77 inline _LIBCPP_ALWAYS_INLINE
     78 int __libcpp_mbtowc_l(wchar_t *__pwc, const char *__pmb, size_t __max, locale_t __l)
     79 {
     80     __locale_raii __current( uselocale(__l), uselocale );
     81     return mbtowc(__pwc, __pmb, __max);
     82 }
     83 
     84 inline _LIBCPP_ALWAYS_INLINE
     85 size_t __libcpp_mbrlen_l(const char *__s, size_t __n, mbstate_t *__ps, locale_t __l)
     86 {
     87     __locale_raii __current( uselocale(__l), uselocale );
     88     return mbrlen(__s, __n, __ps);
     89 }
     90 
     91 inline _LIBCPP_ALWAYS_INLINE
     92 lconv *__libcpp_localeconv_l(locale_t __l)
     93 {
     94     __locale_raii __current( uselocale(__l), uselocale );
     95     return localeconv();
     96 }
     97 
     98 inline _LIBCPP_ALWAYS_INLINE
     99 size_t __libcpp_mbsrtowcs_l(wchar_t *__dest, const char **__src, size_t __len,
    100                      mbstate_t *__ps, locale_t __l)
    101 {
    102     __locale_raii __current( uselocale(__l), uselocale );
    103     return mbsrtowcs(__dest, __src, __len, __ps);
    104 }
    105 
    106 inline
    107 int __libcpp_snprintf_l(char *__s, size_t __n, locale_t __l, const char *__format, ...) {
    108     va_list __va;
    109     va_start(__va, __format);
    110     __locale_raii __current( uselocale(__l), uselocale );
    111     int __res = vsnprintf(__s, __n, __format, __va);
    112     va_end(__va);
    113     return __res;
    114 }
    115 
    116 inline
    117 int __libcpp_asprintf_l(char **__s, locale_t __l, const char *__format, ...) {
    118     va_list __va;
    119     va_start(__va, __format);
    120     __locale_raii __current( uselocale(__l), uselocale );
    121     int __res = vasprintf(__s, __format, __va);
    122     va_end(__va);
    123     return __res;
    124 }
    125 
    126 inline
    127 int __libcpp_sscanf_l(const char *__s, locale_t __l, const char *__format, ...) {
    128     va_list __va;
    129     va_start(__va, __format);
    130     __locale_raii __current( uselocale(__l), uselocale );
    131     int __res = vsscanf(__s, __format, __va);
    132     va_end(__va);
    133     return __res;
    134 }
    135 
    136 _LIBCPP_END_NAMESPACE_STD
    137 
    138 #endif // _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
    139