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2ec6d3933a
Previously <locale> used std::unique_ptr<remove_ptr<locale_t>, locale-mgmt-function> as a scope guard for (A) creating new locales, and (B) setting the thread specific locale in RAII safe manner. However using unique_ptr has some problems, first it requires that locale_t is a pointer type, which may not be the case (Windows will need a non-pointer locale_t type that emulates _locale_t). The second problem is that users of the guards had to supply the locale management function to the custom deleter at every call site. However these locale management functions don't exist natively Windows, making a good Windows implementation of locale more difficult. This patch creates distinct and simply RAII guards that replace unique_ptr. These guards handle calling the correct locale management function so that callers don't have too. This simplification will aid in upcoming Windows fixes. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302474 91177308-0d34-0410-b5e6-96231b3b80d8
136 lines
3.8 KiB
C++
136 lines
3.8 KiB
C++
// -*- C++ -*-
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//===---------------------- __bsd_locale_fallbacks.h ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// The BSDs have lots of *_l functions. This file provides reimplementations
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// of those functions for non-BSD platforms.
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
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#define _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
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#include <stdlib.h>
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#include <memory>
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_LIBCPP_BEGIN_NAMESPACE_STD
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inline _LIBCPP_ALWAYS_INLINE
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decltype(MB_CUR_MAX) __libcpp_mb_cur_max_l(locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return MB_CUR_MAX;
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}
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inline _LIBCPP_ALWAYS_INLINE
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wint_t __libcpp_btowc_l(int __c, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return btowc(__c);
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}
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inline _LIBCPP_ALWAYS_INLINE
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int __libcpp_wctob_l(wint_t __c, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return wctob(__c);
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_wcsnrtombs_l(char *__dest, const wchar_t **__src, size_t __nwc,
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size_t __len, mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return wcsnrtombs(__dest, __src, __nwc, __len, __ps);
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_wcrtomb_l(char *__s, wchar_t __wc, mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return wcrtomb(__s, __wc, __ps);
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_mbsnrtowcs_l(wchar_t * __dest, const char **__src, size_t __nms,
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size_t __len, mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return mbsnrtowcs(__dest, __src, __nms, __len, __ps);
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_mbrtowc_l(wchar_t *__pwc, const char *__s, size_t __n,
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mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return mbrtowc(__pwc, __s, __n, __ps);
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}
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inline _LIBCPP_ALWAYS_INLINE
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int __libcpp_mbtowc_l(wchar_t *__pwc, const char *__pmb, size_t __max, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return mbtowc(__pwc, __pmb, __max);
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_mbrlen_l(const char *__s, size_t __n, mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return mbrlen(__s, __n, __ps);
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}
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inline _LIBCPP_ALWAYS_INLINE
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lconv *__libcpp_localeconv_l(locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return localeconv();
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}
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inline _LIBCPP_ALWAYS_INLINE
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size_t __libcpp_mbsrtowcs_l(wchar_t *__dest, const char **__src, size_t __len,
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mbstate_t *__ps, locale_t __l)
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{
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__libcpp_locale_guard __current(__l);
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return mbsrtowcs(__dest, __src, __len, __ps);
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}
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inline
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int __libcpp_snprintf_l(char *__s, size_t __n, locale_t __l, const char *__format, ...) {
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va_list __va;
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va_start(__va, __format);
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__libcpp_locale_guard __current(__l);
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int __res = vsnprintf(__s, __n, __format, __va);
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va_end(__va);
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return __res;
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}
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inline
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int __libcpp_asprintf_l(char **__s, locale_t __l, const char *__format, ...) {
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va_list __va;
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va_start(__va, __format);
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__libcpp_locale_guard __current(__l);
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int __res = vasprintf(__s, __format, __va);
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va_end(__va);
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return __res;
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}
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inline
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int __libcpp_sscanf_l(const char *__s, locale_t __l, const char *__format, ...) {
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va_list __va;
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va_start(__va, __format);
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__libcpp_locale_guard __current(__l);
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int __res = vsscanf(__s, __format, __va);
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va_end(__va);
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return __res;
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
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