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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_TYPEINDEX
#define _LIBCPP_TYPEINDEX
/*
typeindex synopsis
namespace std
{
class type_index
{
public:
type_index(const type_info& rhs) noexcept;
bool operator==(const type_index& rhs) const noexcept;
bool operator!=(const type_index& rhs) const noexcept; // removed in C++20
bool operator< (const type_index& rhs) const noexcept;
bool operator<=(const type_index& rhs) const noexcept;
bool operator> (const type_index& rhs) const noexcept;
bool operator>=(const type_index& rhs) const noexcept;
strong_ordering operator<=>(const type_index& rhs) const noexcept; // C++20
size_t hash_code() const noexcept;
const char* name() const noexcept;
};
template <>
struct hash<type_index>
: public unary_function<type_index, size_t>
{
size_t operator()(type_index index) const noexcept;
};
} // std
*/
#include <__assert> // all public C++ headers provide the assertion handler
#include <__config>
#include <__functional/unary_function.h>
#include <typeinfo>
#include <version>
// standard-mandated includes
#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
class _LIBCPP_TEMPLATE_VIS type_index {
const type_info* __t_;
public:
_LIBCPP_HIDE_FROM_ABI type_index(const type_info& __y) _NOEXCEPT : __t_(&__y) {}
_LIBCPP_HIDE_FROM_ABI bool operator==(const type_index& __y) const _NOEXCEPT { return *__t_ == *__y.__t_; }
#if _LIBCPP_STD_VER <= 17
_LIBCPP_HIDE_FROM_ABI bool operator!=(const type_index& __y) const _NOEXCEPT { return *__t_ != *__y.__t_; }
#endif
_LIBCPP_HIDE_FROM_ABI bool operator<(const type_index& __y) const _NOEXCEPT { return __t_->before(*__y.__t_); }
_LIBCPP_HIDE_FROM_ABI bool operator<=(const type_index& __y) const _NOEXCEPT { return !__y.__t_->before(*__t_); }
_LIBCPP_HIDE_FROM_ABI bool operator>(const type_index& __y) const _NOEXCEPT { return __y.__t_->before(*__t_); }
_LIBCPP_HIDE_FROM_ABI bool operator>=(const type_index& __y) const _NOEXCEPT { return !__t_->before(*__y.__t_); }
#if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI strong_ordering operator<=>(const type_index& __y) const noexcept {
if (*__t_ == *__y.__t_)
return strong_ordering::equal;
if (__t_->before(*__y.__t_))
return strong_ordering::less;
return strong_ordering::greater;
}
#endif
_LIBCPP_HIDE_FROM_ABI size_t hash_code() const _NOEXCEPT { return __t_->hash_code(); }
_LIBCPP_HIDE_FROM_ABI const char* name() const _NOEXCEPT { return __t_->name(); }
};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS hash;
template <>
struct _LIBCPP_TEMPLATE_VIS hash<type_index> : public __unary_function<type_index, size_t> {
_LIBCPP_HIDE_FROM_ABI size_t operator()(type_index __index) const _NOEXCEPT { return __index.hash_code(); }
};
_LIBCPP_END_NAMESPACE_STD
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
# include <iosfwd>
# include <new>
# include <utility>
#endif
#endif // _LIBCPP_TYPEINDEX
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