mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/* Copyright (C) 2017-2024 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef COMMON_DEFAULT_INIT_ALLOC_H
|
|
#define COMMON_DEFAULT_INIT_ALLOC_H
|
|
|
|
#if __cplusplus >= 202002L
|
|
#include <memory_resource>
|
|
#endif
|
|
|
|
namespace gdb {
|
|
|
|
/* An allocator that default constructs using default-initialization
|
|
rather than value-initialization. The idea is to use this when you
|
|
don't want to default construct elements of containers of trivial
|
|
types using zero-initialization. */
|
|
|
|
/* Mostly as implementation convenience, this is implemented as an
|
|
adapter that given an allocator A, overrides 'A::construct()'. 'A'
|
|
defaults to std::allocator<T>. */
|
|
|
|
template<typename T,
|
|
typename A
|
|
#if __cplusplus >= 202002L
|
|
= std::pmr::polymorphic_allocator<T>
|
|
#else
|
|
= std::allocator<T>
|
|
#endif
|
|
>
|
|
class default_init_allocator : public A
|
|
{
|
|
public:
|
|
/* Pull in A's ctors. */
|
|
using A::A;
|
|
|
|
/* Override rebind. */
|
|
template<typename U>
|
|
struct rebind
|
|
{
|
|
/* A couple helpers just to make it a bit more readable. */
|
|
typedef std::allocator_traits<A> traits_;
|
|
typedef typename traits_::template rebind_alloc<U> alloc_;
|
|
|
|
/* This is what we're after. */
|
|
typedef default_init_allocator<U, alloc_> other;
|
|
};
|
|
|
|
/* Make the base allocator's construct method(s) visible. */
|
|
using A::construct;
|
|
|
|
/* .. and provide an override/overload for the case of default
|
|
construction (i.e., no arguments). This is where we construct
|
|
with default-init. */
|
|
template <typename U>
|
|
void construct (U *ptr)
|
|
noexcept (std::is_nothrow_default_constructible<U>::value)
|
|
{
|
|
::new ((void *) ptr) U; /* default-init */
|
|
}
|
|
};
|
|
|
|
} /* namespace gdb */
|
|
|
|
#endif /* COMMON_DEFAULT_INIT_ALLOC_H */
|