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Atmosphere/stratosphere/libstratosphere/include/meta_tools.hpp
Tony Wasserka ad636f7216 Modernize C++ usage (#144)
* Stratosphere: Use modern C++ idioms in some places

* algorithms like std::for_each are used instead of raw loops

* Stratosphere: Replace more raw loops with algorithms

* Stratosphere: Add a utility predicate function to test for equality with a reference element

This can be used to rewrite some common raw loops using algorithms instead

* fs.mitm: Use variant

* fs.mitm: Use enum class

* fs.mitm: Turn RomFSSourceInfo::Cleanup into a destructor

This obsoletes the need for a custom deleter in other places

* fs.mitm: Use enum class some more

* fs.mitm: Use unique_ptr

* fs.mitm: Simplify initialization

* Stratosphere: Simplify initialization

* fs.mitm: Use unique_ptr (fix memory leak along the way)

The previous code was using "delete" rather than "delete[]"

* fs.mitm: Use vector::emplace_back rather than push_back

emplace_back constructs elements in-place, hence avoiding a redundant element copy.

* Stratosphere: Replace more raw loops with algorithms

* Stratosphere: Use unique_ptr

* fs.mitm: Replace more raw loops with algorithms

* Stratosphere: Prefer move-construction over copy-construction when moving sink parameters around
2018-06-19 11:07:31 -07:00

37 lines
769 B
C++

#pragma once
#include <functional>
namespace detail {
template<typename T>
struct class_of;
template<typename Ret, typename C>
struct class_of<Ret C::*> {
using type = C;
};
template<typename T>
using class_of_t = typename class_of<T>::type;
template<typename Mem, typename T, typename C = class_of_t<Mem>>
struct member_equals_fn_helper {
T ref;
Mem mem_fn;
bool operator()(const C& val) const {
return (std::mem_fn(mem_fn)(val) == ref);
}
bool operator()(C&& val) const {
return (std::mem_fn(mem_fn)(std::move(val)) == ref);
}
};
} // namespace detail
template<typename Mem, typename T>
auto member_equals_fn(Mem mem, T ref) {
return detail::member_equals_fn_helper<Mem, T>{std::move(ref), std::move(mem)};
}