[libcxx-commits] [libcxx] [libc++][AIX] Move to new locale APIs (PR #172068)

[Nikolas Klauser via libcxx-commits]

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@@ -0,0 +1,323 @@
+//===-----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___LOCALE_DIR_SUPPORT_AIX_H
+#define _LIBCPP___LOCALE_DIR_SUPPORT_AIX_H
+
+#include <__config>
+#include <__cstddef/size_t.h>
+#include <__std_mbstate_t.h>
+#include <__utility/forward.h>
+#include <clocale> // std::lconv
+#include <cstdio>
+#include <cstdlib>
+#include <ctype.h>
+#include <stdarg.h>
+#include <string.h>
+#include <time.h>
+#if _LIBCPP_HAS_WIDE_CHARACTERS
+#  include <cwchar>
+#  include <wctype.h>
+#endif
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+namespace __locale {
+
+struct __locale_guard {
+  _LIBCPP_HIDE_FROM_ABI __locale_guard(locale_t& __loc) : __old_loc_(::uselocale(__loc)) {}
+
+  _LIBCPP_HIDE_FROM_ABI ~__locale_guard() {
+    if (__old_loc_)
+      ::uselocale(__old_loc_);
+  }
+
+  locale_t __old_loc_;
+
+  __locale_guard(__locale_guard const&)            = delete;
+  __locale_guard& operator=(__locale_guard const&) = delete;
+};
+
+//
+// Locale management
+//
+#define _LIBCPP_COLLATE_MASK LC_COLLATE_MASK
+#define _LIBCPP_CTYPE_MASK LC_CTYPE_MASK
+#define _LIBCPP_MONETARY_MASK LC_MONETARY_MASK
+#define _LIBCPP_NUMERIC_MASK LC_NUMERIC_MASK
+#define _LIBCPP_TIME_MASK LC_TIME_MASK
+#define _LIBCPP_MESSAGES_MASK LC_MESSAGES_MASK
+#define _LIBCPP_ALL_MASK LC_ALL_MASK
+#define _LIBCPP_LC_ALL LC_ALL
+
+// Get MB_CUE_MAX before __locale_t is defined because it uses a defferent definition in <sys/localedef.h>.
+static inline _LIBCPP_HIDE_FROM_ABI decltype(MB_CUR_MAX) __mb_cur_max() { return MB_CUR_MAX; }
+
+using __locale_t _LIBCPP_NODEBUG = ::locale_t;
+
+#if defined(_LIBCPP_BUILDING_LIBRARY)
+using __lconv_t _LIBCPP_NODEBUG = std::lconv;
+
+inline _LIBCPP_HIDE_FROM_ABI __locale_t __newlocale(int __category_mask, const char* __locale, __locale_t __base) {
+  return ::newlocale(__category_mask, __locale, __base);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI void __freelocale(__locale_t __loc) { ::freelocale(__loc); }
+
+inline _LIBCPP_HIDE_FROM_ABI char* __setlocale(int __category, char const* __locale) {
+  return ::setlocale(__category, __locale);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI __lconv_t* __localeconv(__locale_t& __loc) {
+  __locale_guard __current(__loc);
+  return std::localeconv();
+}
+#endif // _LIBCPP_BUILDING_LIBRARY
+
+// The following are not POSIX routines.  These are quick-and-dirty hacks
+// to make things pretend to work
+namespace {
+
+struct __setAndRestore {
+  explicit __setAndRestore(locale_t locale) {
+    if (locale == (locale_t)0) {
+      __cloc   = newlocale(LC_ALL_MASK, "C", /* base */ (locale_t)0);
+      __stored = uselocale(__cloc);
+    } else {
+      __stored = uselocale(locale);
+    }
+  }
+
+  ~__setAndRestore() {
+    uselocale(__stored);
+    if (__cloc)
+      freelocale(__cloc);
+  }
+
+private:
+  locale_t __stored = (locale_t)0;
+  locale_t __cloc   = (locale_t)0;
+};
+
+} // namespace
+
+inline _LIBCPP_HIDE_FROM_ABI long long strtoll_l(const char* __nptr, char** __endptr, int __base, locale_t locale) {
+  __setAndRestore __newloc(locale);
+  return ::strtoll(__nptr, __endptr, __base);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI double strtod_l(const char* __nptr, char** __endptr, locale_t locale) {
+  __setAndRestore __newloc(locale);
+  return ::strtod(__nptr, __endptr);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI float strtof_l(const char* __nptr, char** __endptr, locale_t locale) {
+  __setAndRestore __newloc(locale);
+  return ::strtof(__nptr, __endptr);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long double strtold_l(const char* __nptr, char** __endptr, locale_t locale) {
+  __setAndRestore __newloc(locale);
+  return ::strtold(__nptr, __endptr);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI unsigned long long
+strtoull_l(const char* __nptr, char** __endptr, int __base, locale_t locale) {
+  __setAndRestore __newloc(locale);
+  return ::strtoull(__nptr, __endptr, __base);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI
+_LIBCPP_ATTRIBUTE_FORMAT(__printf__, 2, 0) int vasprintf(char** strp, const char* fmt, va_list ap) {
----------------
philnik777 wrote:

Should this be a variadic template instead?

https://github.com/llvm/llvm-project/pull/172068