Update libcxx to 19 Oct d173ce4a670e88b65c52f6fc1bf10d133ee35704

commit_hash:c1da7a8a6580c15e8af41b1a4847da2163706905

2 files changed, 141 insertions, 224 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp b/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp
index 01fe199acb3..070f9891947 100644
--- a/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/ios.instantiations.cpp
@@ -31,7 +31,7 @@ template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_ostream<wchar_t>;
 #endif
 
 // Additional instantiations added later. Whether programs rely on these being
-// available is protected by _LIBCPP_ABI_ENABLE_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1.
+// available is protected by _LIBCPP_AVAILABILITY_HAS_NO_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1.
 template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_stringbuf<char>;
 template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_stringstream<char>;
 template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_ostringstream<char>;
diff --git a/contrib/libs/cxxsupp/libcxx/src/new.cpp b/contrib/libs/cxxsupp/libcxx/src/new.cpp
index 6d5b2211985..318b062bb0c 100644
--- a/contrib/libs/cxxsupp/libcxx/src/new.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/new.cpp
@@ -20,248 +20,165 @@
 // in this shared library, so that they can be overridden by programs
 // that define non-weak copies of the functions.
 
-_LIBCPP_WEAK
-void *
-operator new(std::size_t size) _THROW_BAD_ALLOC
-{
-    if (size == 0)
-        size = 1;
-    void* p;
-    while ((p = std::malloc(size)) == nullptr)
-    {
-        // If malloc fails and there is a new_handler,
-        // call it to try free up memory.
-        std::new_handler nh = std::get_new_handler();
-        if (nh)
-            nh();
-        else
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-            throw std::bad_alloc();
-#else
-#ifdef __EMSCRIPTEN__
-            // Abort here so that when exceptions are disabled, we do not just
-            // return 0 when malloc returns 0.
-            // We could also do this with set_new_handler, but that adds a
-            // global constructor and a table entry, overhead that we can avoid
-            // by doing it this way.
-            abort();
-#else
-            break;
-#endif
-#endif
-    }
-    return p;
+static void* operator_new_impl(std::size_t size) noexcept {
+  if (size == 0)
+    size = 1;
+  void* p;
+  while ((p = std::malloc(size)) == nullptr) {
+    // If malloc fails and there is a new_handler,
+    // call it to try free up memory.
+    std::new_handler nh = std::get_new_handler();
+    if (nh)
+      nh();
+    else
+      break;
+  }
+  return p;
+}
+
+_LIBCPP_WEAK void* operator new(std::size_t size) _THROW_BAD_ALLOC {
+  void* p = operator_new_impl(size);
+#  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  if (p == nullptr)
+    throw std::bad_alloc();
+#  else
+#    ifdef __EMSCRIPTEN__
+  if (p == nullptr)
+      // Abort here so that when exceptions are disabled, we do not just
+      // return 0 when malloc returns 0.
+      // We could also do this with set_new_handler, but that adds a
+      // global constructor and a table entry, overhead that we can avoid
+      // by doing it this way.
+      abort();
+#    endif
+#  endif
+  return p;
+}
+
+_LIBCPP_WEAK void* operator new(size_t size, const std::nothrow_t&) noexcept {
+  void* p = nullptr;
+#  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  try {
+#  endif // _LIBCPP_HAS_NO_EXCEPTIONS
+    p = ::operator new(size);
+#  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  } catch (...) {
+  }
+#  endif // _LIBCPP_HAS_NO_EXCEPTIONS
+  return p;
+}
+
+_LIBCPP_WEAK void* operator new[](size_t size) _THROW_BAD_ALLOC { return ::operator new(size); }
+
+_LIBCPP_WEAK void* operator new[](size_t size, const std::nothrow_t&) noexcept {
+  void* p = nullptr;
+#  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  try {
+#  endif // _LIBCPP_HAS_NO_EXCEPTIONS
+    p = ::operator new[](size);
+#  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  } catch (...) {
+  }
+#  endif // _LIBCPP_HAS_NO_EXCEPTIONS
+  return p;
+}
+
+_LIBCPP_WEAK void operator delete(void* ptr) noexcept { std::free(ptr); }
+
+_LIBCPP_WEAK void operator delete(void* ptr, const std::nothrow_t&) noexcept { ::operator delete(ptr); }
+
+_LIBCPP_WEAK void operator delete(void* ptr, size_t) noexcept { ::operator delete(ptr); }
+
+_LIBCPP_WEAK void operator delete[](void* ptr) noexcept { ::operator delete(ptr); }
+
+_LIBCPP_WEAK void operator delete[](void* ptr, const std::nothrow_t&) noexcept { ::operator delete[](ptr); }
+
+_LIBCPP_WEAK void operator delete[](void* ptr, size_t) noexcept { ::operator delete[](ptr); }
+
+#  if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION)
+
+static void* operator_new_aligned_impl(std::size_t size, std::align_val_t alignment) noexcept {
+  if (size == 0)
+    size = 1;
+  if (static_cast<size_t>(alignment) < sizeof(void*))
+    alignment = std::align_val_t(sizeof(void*));
+
+  // Try allocating memory. If allocation fails and there is a new_handler,
+  // call it to try free up memory, and try again until it succeeds, or until
+  // the new_handler decides to terminate.
+  void* p;
+  while ((p = std::__libcpp_aligned_alloc(static_cast<std::size_t>(alignment), size)) == nullptr) {
+    std::new_handler nh = std::get_new_handler();
+    if (nh)
+      nh();
+    else
+      break;
+  }
+  return p;
+}
+
+_LIBCPP_WEAK void* operator new(std::size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC {
+  void* p = operator_new_aligned_impl(size, alignment);
+#    ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  if (p == nullptr)
+    throw std::bad_alloc();
+#    endif
+  return p;
 }
 
-_LIBCPP_WEAK
-void*
-operator new(size_t size, const std::nothrow_t&) noexcept
-{
-    void* p = nullptr;
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    try
-    {
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-        p = ::operator new(size);
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-    }
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-    return p;
+_LIBCPP_WEAK void* operator new(size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept {
+  void* p = nullptr;
+#    ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  try {
+#    endif // _LIBCPP_HAS_NO_EXCEPTIONS
+    p = ::operator new(size, alignment);
+#    ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  } catch (...) {
+  }
+#    endif // _LIBCPP_HAS_NO_EXCEPTIONS
+  return p;
 }
 
-_LIBCPP_WEAK
-void*
-operator new[](size_t size) _THROW_BAD_ALLOC
-{
-    return ::operator new(size);
+_LIBCPP_WEAK void* operator new[](size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC {
+  return ::operator new(size, alignment);
 }
 
-_LIBCPP_WEAK
-void*
-operator new[](size_t size, const std::nothrow_t&) noexcept
-{
-    void* p = nullptr;
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    try
-    {
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-        p = ::operator new[](size);
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-    }
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-    return p;
+_LIBCPP_WEAK void* operator new[](size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept {
+  void* p = nullptr;
+#    ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  try {
+#    endif // _LIBCPP_HAS_NO_EXCEPTIONS
+    p = ::operator new[](size, alignment);
+#    ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+  } catch (...) {
+  }
+#    endif // _LIBCPP_HAS_NO_EXCEPTIONS
+  return p;
 }
 
-_LIBCPP_WEAK
-void
-operator delete(void* ptr) noexcept
-{
-    std::free(ptr);
-}
-
-_LIBCPP_WEAK
-void
-operator delete(void* ptr, const std::nothrow_t&) noexcept
-{
-    ::operator delete(ptr);
-}
-
-_LIBCPP_WEAK
-void
-operator delete(void* ptr, size_t) noexcept
-{
-    ::operator delete(ptr);
-}
-
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr) noexcept
-{
-    ::operator delete(ptr);
-}
-
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr, const std::nothrow_t&) noexcept
-{
-    ::operator delete[](ptr);
-}
-
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr, size_t) noexcept
-{
-    ::operator delete[](ptr);
-}
-
-#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION)
-
-_LIBCPP_WEAK
-void *
-operator new(std::size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC
-{
-    if (size == 0)
-        size = 1;
-    if (static_cast<size_t>(alignment) < sizeof(void*))
-      alignment = std::align_val_t(sizeof(void*));
-
-    // Try allocating memory. If allocation fails and there is a new_handler,
-    // call it to try free up memory, and try again until it succeeds, or until
-    // the new_handler decides to terminate.
-    //
-    // If allocation fails and there is no new_handler, we throw bad_alloc
-    // (or return nullptr if exceptions are disabled).
-    void* p;
-    while ((p = std::__libcpp_aligned_alloc(static_cast<std::size_t>(alignment), size)) == nullptr)
-    {
-        std::new_handler nh = std::get_new_handler();
-        if (nh)
-            nh();
-        else {
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-            throw std::bad_alloc();
-#else
-            break;
-#endif
-        }
-    }
-    return p;
-}
-
-_LIBCPP_WEAK
-void*
-operator new(size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept
-{
-    void* p = nullptr;
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    try
-    {
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-        p = ::operator new(size, alignment);
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-    }
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-    return p;
-}
-
-_LIBCPP_WEAK
-void*
-operator new[](size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC
-{
-    return ::operator new(size, alignment);
-}
-
-_LIBCPP_WEAK
-void*
-operator new[](size_t size, std::align_val_t alignment, const std::nothrow_t&) noexcept
-{
-    void* p = nullptr;
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    try
-    {
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-        p = ::operator new[](size, alignment);
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-    }
-#endif // _LIBCPP_HAS_NO_EXCEPTIONS
-    return p;
-}
-
-_LIBCPP_WEAK
-void
-operator delete(void* ptr, std::align_val_t) noexcept
-{
-    std::__libcpp_aligned_free(ptr);
-}
+_LIBCPP_WEAK void operator delete(void* ptr, std::align_val_t) noexcept { std::__libcpp_aligned_free(ptr); }
 
-_LIBCPP_WEAK
-void
-operator delete(void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept
-{
-    ::operator delete(ptr, alignment);
+_LIBCPP_WEAK void operator delete(void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept {
+  ::operator delete(ptr, alignment);
 }
 
-_LIBCPP_WEAK
-void
-operator delete(void* ptr, size_t, std::align_val_t alignment) noexcept
-{
-    ::operator delete(ptr, alignment);
+_LIBCPP_WEAK void operator delete(void* ptr, size_t, std::align_val_t alignment) noexcept {
+  ::operator delete(ptr, alignment);
 }
 
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr, std::align_val_t alignment) noexcept
-{
-    ::operator delete(ptr, alignment);
+_LIBCPP_WEAK void operator delete[](void* ptr, std::align_val_t alignment) noexcept {
+  ::operator delete(ptr, alignment);
 }
 
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept
-{
-    ::operator delete[](ptr, alignment);
+_LIBCPP_WEAK void operator delete[](void* ptr, std::align_val_t alignment, const std::nothrow_t&) noexcept {
+  ::operator delete[](ptr, alignment);
 }
 
-_LIBCPP_WEAK
-void
-operator delete[] (void* ptr, size_t, std::align_val_t alignment) noexcept
-{
-    ::operator delete[](ptr, alignment);
+_LIBCPP_WEAK void operator delete[](void* ptr, size_t, std::align_val_t alignment) noexcept {
+  ::operator delete[](ptr, alignment);
 }
 
-#endif // !_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
+#  endif // !_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
 // ------------------ END COPY ------------------
 
 #endif // !__GLIBCXX__ && !_LIBCPP_ABI_VCRUNTIME