allocator_traits.hpp File Reference

#include <helios/core_pch.hpp>
#include <algorithm>
#include <concepts>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <type_traits>

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Classes
struct	helios::memory::AllocatorStats
	Statistics for tracking allocator usage. More...
struct	helios::memory::AllocationResult
	Result type for allocation operations. More...

Namespaces
namespace	helios
namespace	helios::memory

Concepts
concept	helios::memory::Allocator
	Concept for basic allocator interface.
concept	helios::memory::ResettableAllocator
	Concept for allocators that can be reset/cleared.
concept	helios::memory::AllocatorWithStats
	Concept for allocators that provide statistics.

Functions
constexpr size_t	helios::memory::AlignUp (size_t size, size_t alignment) noexcept
	Helper function to align a size up to the given alignment.
void *	helios::memory::AlignUpPtr (void *ptr, size_t alignment) noexcept
	Helper function to align a pointer up to the given alignment.
bool	helios::memory::IsAligned (const void *ptr, size_t alignment) noexcept
	Helper function to check if a pointer is aligned.
constexpr bool	helios::memory::IsPowerOfTwo (size_t size) noexcept
	Helper function to check if a size is a power of 2.
size_t	helios::memory::CalculatePadding (const void *ptr, size_t alignment) noexcept
	Calculate padding needed for alignment.
size_t	helios::memory::CalculatePaddingWithHeader (const void *ptr, size_t alignment, size_t header_size) noexcept
	Calculate padding with header for alignment.
template<typename T , Allocator Alloc>
constexpr T *	helios::memory::Allocate (Alloc &allocator) noexcept
template<typename T , Allocator Alloc>
constexpr T *	helios::memory::Allocate (Alloc &allocator, size_t count) noexcept
template<typename T , Allocator Alloc, typename... Args> requires std::constructible_from<T, Args...>
constexpr T *	helios::memory::AllocateAndConstruct (Alloc &allocator, Args &&... args) noexcept(std::is_nothrow_constructible_v< T, Args... >)
template<typename T , Allocator Alloc> requires std::default_initializable<T>
constexpr T *	helios::memory::AllocateAndConstructArray (Alloc &allocator, size_t count) noexcept(std::is_nothrow_default_constructible_v< T >)

Variables
constexpr size_t	helios::memory::kDefaultAlignment = 64
	Default alignment for allocations (cache line size for most modern CPUs).
constexpr size_t	helios::memory::kMinAlignment = alignof(std::max_align_t)
	Minimum alignment for any allocation.