diff options
author | Vincent Ambo <mail@tazj.in> | 2022-02-07T23·05+0300 |
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committer | clbot <clbot@tvl.fyi> | 2022-02-07T23·09+0000 |
commit | 5aa5d282eac56a21e74611c1cdbaa97bb5db2dca (patch) | |
tree | 8cc5dce8157a1470ff76719dd15d65f648a05522 /third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h | |
parent | a25675804c4f429fab5ee5201fe25e89865dfd13 (diff) |
chore(3p/abseil_cpp): unvendor abseil_cpp r/3786
we weren't actually using these sources anymore, okay? Change-Id: If701571d9716de308d3512e1eb22c35db0877a66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
Diffstat (limited to 'third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h')
-rw-r--r-- | third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h b/third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h deleted file mode 100644 index e42628e3949a..000000000000 --- a/third_party/abseil_cpp/absl/strings/internal/resize_uninitialized.h +++ /dev/null @@ -1,73 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_ -#define ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_ - -#include <string> -#include <type_traits> -#include <utility> - -#include "absl/base/port.h" -#include "absl/meta/type_traits.h" // for void_t - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace strings_internal { - -// Is a subclass of true_type or false_type, depending on whether or not -// T has a __resize_default_init member. -template <typename string_type, typename = void> -struct ResizeUninitializedTraits { - using HasMember = std::false_type; - static void Resize(string_type* s, size_t new_size) { s->resize(new_size); } -}; - -// __resize_default_init is provided by libc++ >= 8.0 -template <typename string_type> -struct ResizeUninitializedTraits< - string_type, absl::void_t<decltype(std::declval<string_type&>() - .__resize_default_init(237))> > { - using HasMember = std::true_type; - static void Resize(string_type* s, size_t new_size) { - s->__resize_default_init(new_size); - } -}; - -// Returns true if the std::string implementation supports a resize where -// the new characters added to the std::string are left untouched. -// -// (A better name might be "STLStringSupportsUninitializedResize", alluding to -// the previous function.) -template <typename string_type> -inline constexpr bool STLStringSupportsNontrashingResize(string_type*) { - return ResizeUninitializedTraits<string_type>::HasMember::value; -} - -// Like str->resize(new_size), except any new characters added to "*str" as a -// result of resizing may be left uninitialized, rather than being filled with -// '0' bytes. Typically used when code is then going to overwrite the backing -// store of the std::string with known data. -template <typename string_type, typename = void> -inline void STLStringResizeUninitialized(string_type* s, size_t new_size) { - ResizeUninitializedTraits<string_type>::Resize(s, new_size); -} - -} // namespace strings_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_ |