Mirrors/yuzu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

common/parent_of_member: Replace TYPED_STORAGE define with template alias

Browse source 
Provides the same construct, but makes it obey namespacing.
This commit is contained in:
Lioncash 2021-01-11 17:59:02 -05:00
parent eb3cb54aa5
commit 703c57a119
2 changed files with 11 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/common/parent_of_member.h
View file

@ -10,21 +10,23 @@
#include "common/common_types.h"
namespace Common {
namespace detail {
template <typename T, size_t Size, size_t Align>
struct TypedStorage {
struct TypedStorageImpl {
std::aligned_storage_t<Size, Align> storage_;
};
#define TYPED_STORAGE(...) TypedStorage<__VA_ARGS__, sizeof(__VA_ARGS__), alignof(__VA_ARGS__)>
} // namespace detail
template <typename T>
static constexpr T* GetPointer(TYPED_STORAGE(T) & ts) {
using TypedStorage = detail::TypedStorageImpl<T, sizeof(T), alignof(T)>;
template <typename T>
static constexpr T* GetPointer(TypedStorage<T>& ts) {
return static_cast<T*>(static_cast<void*>(std::addressof(ts.storage_)));
}
template <typename T>
static constexpr const T* GetPointer(const TYPED_STORAGE(T) & ts) {
static constexpr const T* GetPointer(const TypedStorage<T>& ts) {
return static_cast<const T*>(static_cast<const void*>(std::addressof(ts.storage_)));
}
@ -72,7 +74,7 @@ struct OffsetOfCalculator {
union Union {
char c{};
UnionHolder first_union;
TYPED_STORAGE(ParentType) parent;
TypedStorage<ParentType> parent;
constexpr Union() : c() {}
};