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yuzu/src/common/concepts.h
Lioncash 8e86fa7e60 common/concepts: Rename IsBaseOf to DerivedFrom
This makes it more inline with its currently unavailable standardized
analogue std::derived_from.

While we're at it, we can also make the template match the requirements
of the standardized variant as well.
2020-08-07 08:09:57 -04:00

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875 B
C++

// Copyright 2020 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
namespace Common {
#include <type_traits>
// Check if type is like an STL container
template <typename T>
concept IsSTLContainer = requires(T t) {
typename T::value_type;
typename T::iterator;
typename T::const_iterator;
// TODO(ogniK): Replace below is std::same_as<void> when MSVC supports it.
t.begin();
t.end();
t.cbegin();
t.cend();
t.data();
t.size();
};
// TODO: Replace with std::derived_from when the <concepts> header
// is available on all supported platforms.
template <typename Derived, typename Base>
concept DerivedFrom = requires {
std::is_base_of_v<Base, Derived>;
std::is_convertible_v<const volatile Derived*, const volatile Base*>;
};
} // namespace Common