intermediate changes

ref:4635f4dd763168c3fa295f87727595c785b4d5a4

3 files changed, 19 insertions, 57 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/src/locale.cpp b/contrib/libs/cxxsupp/libcxx/src/locale.cpp
index 42b5641b43..ec8a811262 100644
--- a/contrib/libs/cxxsupp/libcxx/src/locale.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/locale.cpp
@@ -4561,6 +4561,18 @@ static bool checked_string_to_wchar_convert(wchar_t& dest,
 }
 #endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
 
+#ifdef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+static bool is_narrow_non_breaking_space(const char* ptr) {
+  // https://www.fileformat.info/info/unicode/char/202f/index.htm
+  return ptr[0] == '\xe2' && ptr[1] == '\x80' && ptr[2] == '\xaf';
+}
+
+static bool is_non_breaking_space(const char* ptr) {
+  // https://www.fileformat.info/info/unicode/char/0a/index.htm
+  return ptr[0] == '\xc2' && ptr[1] == '\xa0';
+}
+#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
+
 static bool checked_string_to_char_convert(char& dest,
                                            const char* ptr,
                                            locale_t __loc) {
@@ -4593,6 +4605,13 @@ static bool checked_string_to_char_convert(char& dest,
     return false;
   }
 #else // _LIBCPP_HAS_NO_WIDE_CHARACTERS
+  // FIXME: Work around specific multibyte sequences that we can reasonably
+  // translate into a different single byte.
+  if (is_narrow_non_breaking_space(ptr) || is_non_breaking_space(ptr)) {
+    dest = ' ';
+    return true;
+  }
+
   return false;
 #endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
   _LIBCPP_UNREACHABLE();
diff --git a/contrib/libs/cxxsupp/libcxx/src/memory.cpp b/contrib/libs/cxxsupp/libcxx/src/memory.cpp
index f9e8d44842..29b3c1da76 100644
--- a/contrib/libs/cxxsupp/libcxx/src/memory.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/memory.cpp
@@ -215,27 +215,6 @@ __get_sp_mut(const void* p)
 
 #endif // !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)
 
-void
-declare_reachable(void*)
-{
-}
-
-void
-declare_no_pointers(char*, size_t)
-{
-}
-
-void
-undeclare_no_pointers(char*, size_t)
-{
-}
-
-void*
-__undeclare_reachable(void* p)
-{
-    return p;
-}
-
 void*
 align(size_t alignment, size_t size, void*& ptr, size_t& space)
 {
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/win32/thread_win32.cpp b/contrib/libs/cxxsupp/libcxx/src/support/win32/thread_win32.cpp
index 9506822da8..f2072b1435 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/win32/thread_win32.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/win32/thread_win32.cpp
@@ -38,9 +38,6 @@ static_assert(alignof(__libcpp_thread_t) == alignof(HANDLE), "");
 static_assert(sizeof(__libcpp_tls_key) == sizeof(DWORD), "");
 static_assert(alignof(__libcpp_tls_key) == alignof(DWORD), "");
 
-static_assert(sizeof(__libcpp_semaphore_t) == sizeof(HANDLE), "");
-static_assert(alignof(__libcpp_semaphore_t) == alignof(HANDLE), "");
-
 // Mutex
 int __libcpp_recursive_mutex_init(__libcpp_recursive_mutex_t *__m)
 {
@@ -274,37 +271,4 @@ int __libcpp_tls_set(__libcpp_tls_key __key, void *__p)
   return 0;
 }
 
-// Semaphores
-bool __libcpp_semaphore_init(__libcpp_semaphore_t* __sem, int __init)
-{
-  *(PHANDLE)__sem = CreateSemaphoreEx(nullptr, __init, _LIBCPP_SEMAPHORE_MAX,
-                                      nullptr, 0, SEMAPHORE_ALL_ACCESS);
-  return *__sem != nullptr;
-}
-
-bool __libcpp_semaphore_destroy(__libcpp_semaphore_t* __sem)
-{
-  CloseHandle(*(PHANDLE)__sem);
-  return true;
-}
-
-bool __libcpp_semaphore_post(__libcpp_semaphore_t* __sem)
-{
-  return ReleaseSemaphore(*(PHANDLE)__sem, 1, nullptr);
-}
-
-bool __libcpp_semaphore_wait(__libcpp_semaphore_t* __sem)
-{
-  return WaitForSingleObjectEx(*(PHANDLE)__sem, INFINITE, false) ==
-         WAIT_OBJECT_0;
-}
-
-bool __libcpp_semaphore_wait_timed(__libcpp_semaphore_t* __sem,
-                                   chrono::nanoseconds const& __ns)
-{
-  chrono::milliseconds __ms = chrono::ceil<chrono::milliseconds>(__ns);
-  return WaitForSingleObjectEx(*(PHANDLE)__sem, __ms.count(), false) ==
-         WAIT_OBJECT_0;
-}
-
 _LIBCPP_END_NAMESPACE_STD