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add example: compile-time lifegame

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bolero-MURAKAMI 2015-05-28 13:11:39 +09:00
parent 559db060ab
commit feac3f52c7
3 changed files with 318 additions and 0 deletions
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sprout/stateful/type_index.hpp Normal file
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/*=============================================================================
Copyright (c) 2011-2015 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_STATEFUL_TYPE_INDEX_HPP
#define SPROUT_STATEFUL_TYPE_INDEX_HPP
#include <typeinfo>
#include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/functional/hash.hpp>
#include <sprout/stateful/typed_id.hpp>
namespace sprout {
#ifndef SPROUT_CONFIG_DISABLE_CONSTEXPR
class type_index {
private:
int id_;
public:
template<typename T>
explicit SPROUT_CONSTEXPR type_index(sprout::typed_id<T>) SPROUT_NOEXCEPT
: id_(sprout::typed_id<T>::value)
{}
explicit SPROUT_CONSTEXPR type_index(int id) SPROUT_NOEXCEPT
: id_(id)
{}
SPROUT_CONSTEXPR bool
operator==(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return id_ == rhs.id_;
}
SPROUT_CONSTEXPR bool
operator!=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return !(*this == rhs);
}
SPROUT_CONSTEXPR bool
operator<(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return id_ < rhs.id_;
}
SPROUT_CONSTEXPR bool
operator<=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return !(rhs < *this);
}
SPROUT_CONSTEXPR bool
operator>(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return rhs < *this;
}
SPROUT_CONSTEXPR bool
operator>=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
return !(*this < rhs);
}
SPROUT_CONSTEXPR std::size_t
hash_code() const SPROUT_NOEXCEPT {
return sprout::hash_value(id_);
}
} ;
#endif
} // namespace sprout
#ifndef SPROUT_CONFIG_DISABLE_CONSTEXPR
namespace sprout {
//
// hash_value
//
inline SPROUT_CONSTEXPR std::size_t
hash_value(sprout::type_index const& v) {
return v.hash_code();
}
} // namespace sprout
namespace std {
#if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wmismatched-tags"
#endif
//
// hash
//
template<>
struct hash<sprout::type_index>
: public sprout::hash<sprout::type_index>
{};
#if defined(__clang__)
# pragma clang diagnostic pop
#endif
} // namespace std
#endif
#endif // #ifndef SPROUT_STATEFUL_TYPE_INDEX_HPP