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Code Issues

PoolAllocator: fix VS 2017 build.

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Adriano dos Santos Fernandes 2022-03-05 22:37:42 -03:00 committed by Adriano dos Santos Fernandes
parent 4c9fffd9b9
commit 652ebe49ff
1 changed files with 31 additions and 2 deletions
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33
src/common/classes/alloc.h
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@ -469,6 +469,10 @@ namespace Firebird
using size_type = size_t;
using pointer = T*;
using const_pointer = const T*;
using reference = T&;
using const_reference = const T&;
using void_pointer = void* ;
using const_void_pointer = const void*;
using difference_type = std::ptrdiff_t;
using is_always_equal = std::true_type;
@ -511,12 +515,37 @@ namespace Firebird
return size_t(-1) / sizeof(T);
}
/* C++17
template <typename U, typename... Args>
constexpr void construct(U* ptr, Args&&... args)
{
if constexpr (std::is_constructible<U, MemoryPool&, Args...>::value)
new ((void*) ptr) U(pool, std::forward<Args>(args)...);
else
new ((void*) ptr) U(std::forward<Args>(args)...);
}
*/
template <
typename U,
typename... Args,
std::enable_if_t<std::is_constructible<U, MemoryPool&, Args...>::value, bool> = true
>
constexpr void construct(U* ptr, Args&&... args)
{
new ((void*) ptr) U(pool, std::forward<Args>(args)...);
}
template <
typename U,
typename... Args,
std::enable_if_t<!std::is_constructible<U, MemoryPool&, Args...>::value, bool> = true
>
constexpr void construct(U* ptr, Args&&... args)
{
new ((void*) ptr) U(std::forward<Args>(args)...);
}
template <typename U>
constexpr void destroy(U* ptr)
{
@ -548,8 +577,8 @@ struct std::allocator_traits<Firebird::PoolAllocator<TAlloc>>
using value_type = typename Alloc::value_type;
using pointer = typename Alloc::pointer;
using const_pointer = typename Alloc::const_pointer;
using void_pointer = void*;
using const_void_pointer = const void*;
using void_pointer = typename Alloc::void_pointer;
using const_void_pointer = typename Alloc::const_void_pointer;
using size_type = typename Alloc::size_type;
using difference_type = typename Alloc::difference_type;
using reference = value_type&;