Update libc++ to a7c2a628 (15 Feb 2022).

Notable changes:
* macros for disabling and enabling compile warnings
* replace _VSTD with std in __ranges
* add stdatomic.h
* implement unreachable()
* implement ranges::rbegin, rend, crbegin and crend
* remove experimental/filesystem header

ref:3104f711bf2401dd8b882290fa4fa01f71924406

2 files changed, 9 insertions, 9 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/src/support/win32/locale_win32.cpp b/contrib/libs/cxxsupp/libcxx/src/support/win32/locale_win32.cpp
index 43e5c9a5722..67f4d1341ab 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/win32/locale_win32.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/win32/locale_win32.cpp
@@ -97,10 +97,10 @@ int snprintf_l(char *ret, size_t n, locale_t loc, const char *format, ...)
         ret, n, format, loc, ap);
 #else
     __libcpp_locale_guard __current(loc);
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wformat-nonliteral"
+    _LIBCPP_DIAGNOSTIC_PUSH
+    _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
     int result = vsnprintf( ret, n, format, ap );
-#pragma clang diagnostic pop
+    _LIBCPP_DIAGNOSTIC_POP
 #endif
     va_end(ap);
     return result;
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp b/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
index 6d4b371f3dc..dbec4083cba 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
@@ -23,10 +23,10 @@ int __libcpp_vasprintf( char **sptr, const char *__restrict format, va_list ap )
     // Query the count required.
     va_list ap_copy;
     va_copy(ap_copy, ap);
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wformat-nonliteral"
+    _LIBCPP_DIAGNOSTIC_PUSH
+    _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
     int count = vsnprintf( NULL, 0, format, ap_copy );
-#pragma clang diagnostic pop
+    _LIBCPP_DIAGNOSTIC_POP
     va_end(ap_copy);
     if (count < 0)
         return count;
@@ -36,10 +36,10 @@ int __libcpp_vasprintf( char **sptr, const char *__restrict format, va_list ap )
         return -1;
     // If we haven't used exactly what was required, something is wrong.
     // Maybe bug in vsnprintf. Report the error and return.
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wformat-nonliteral"
+    _LIBCPP_DIAGNOSTIC_PUSH
+    _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
     if (vsnprintf(p, buffer_size, format, ap) != count) {
-#pragma clang diagnostic pop
+    _LIBCPP_DIAGNOSTIC_POP
         free(p);
         return -1;
     }