STL/stl/inc/typeinfo

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2.0 KiB
C++

// typeinfo standard header
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#pragma once
#ifndef _TYPEINFO_
#define _TYPEINFO_
#include <yvals_core.h>
#if _STL_COMPILER_PREPROCESSOR
#include <exception>
#pragma pack(push, _CRT_PACKING)
#pragma warning(push, _STL_WARNING_LEVEL)
#pragma warning(disable : _STL_DISABLED_WARNINGS)
_STL_DISABLE_CLANG_WARNINGS
#pragma push_macro("new")
#undef new
#pragma warning(disable : 4275) // non dll-interface class 'X' used as base for dll-interface class 'Y'
#include <vcruntime_typeinfo.h>
_STD_BEGIN
// size in pointers of std::function and std::any (roughly 3 pointers larger than std::string when building debug)
constexpr int _Small_object_num_ptrs = 6 + 16 / sizeof(void*);
#if !_HAS_EXCEPTIONS
// CLASS bad_cast
class _CRTIMP2_IMPORT bad_cast : public exception { // base of all bad cast exceptions
public:
bad_cast(const char* _Message = "bad cast") noexcept : exception(_Message) {}
virtual ~bad_cast() noexcept {}
protected:
virtual void _Doraise() const override { // perform class-specific exception handling
_RAISE(*this);
}
};
// CLASS bad_typeid
class _CRTIMP2_IMPORT bad_typeid : public exception { // base of all bad typeid exceptions
public:
bad_typeid(const char* _Message = "bad typeid") noexcept : exception(_Message) {}
virtual ~bad_typeid() noexcept {}
protected:
virtual void _Doraise() const override { // perform class-specific exception handling
_RAISE(*this);
}
};
class _CRTIMP2_IMPORT __non_rtti_object : public bad_typeid { // report a non-RTTI object
public:
__non_rtti_object(const char* _Message) : bad_typeid(_Message) {}
};
#endif // !_HAS_EXCEPTIONS
[[noreturn]] inline void _Throw_bad_cast() {
_THROW(bad_cast{});
}
_STD_END
#pragma pop_macro("new")
_STL_RESTORE_CLANG_WARNINGS
#pragma pack(pop)
#pragma warning(pop)
#endif // _STL_COMPILER_PREPROCESSOR
#endif // _TYPEINFO_