100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
/***
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*typeinfo.cpp - Implementation of type_info for RTTI.
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*
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* Copyright (c) 1994-1997, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* This module provides an implementation of the class type_info
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* for Run-Time Type Information (RTTI).
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*
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*Revision History:
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* 10-04-94 SB Module created
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* 10-07-94 JWM rewrote
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* 10-17-94 BWT Disable code for PPC.
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* 11-23-94 JWM Strip trailing spaces from type_info.name().
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* 02/15/95 JWM Class type_info no longer _CRTIMP, member functions are exported instead
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* 06-02-95 JWM unDName -> __unDName.
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* 06-19-95 JWM type_info.name() moved to typename.cpp for granularity.
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* 07-02-95 JWM return values from == & != cleaned up, locks added to destructor.
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*
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****/
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#include <stdlib.h>
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#include <typeinfo.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// From mtdll.h
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#define _TYPEINFO_LOCK 27 /* lock for type_info access */
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#define _mlock(l) _lock(l)
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#define _munlock(l) _unlock(l)
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void __cdecl _lock (int locknum);
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void __cdecl _unlock (int locknum);
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#ifdef __cplusplus
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}
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#endif
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_CRTIMP type_info::~type_info()
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{
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_mlock(_TYPEINFO_LOCK);
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if (_m_data != NULL) {
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free (_m_data);
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}
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_munlock(_TYPEINFO_LOCK);
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}
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_CRTIMP int type_info::operator==(const type_info& rhs) const
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{
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return (strcmp((rhs._m_d_name)+1, (_m_d_name)+1)?0:1);
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}
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_CRTIMP int type_info::operator!=(const type_info& rhs) const
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{
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return (strcmp((rhs._m_d_name)+1, (_m_d_name)+1)?1:0);
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}
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_CRTIMP int type_info::before(const type_info& rhs) const
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{
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return (strcmp((rhs._m_d_name)+1,(_m_d_name)+1) > 0);
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}
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_CRTIMP const char* type_info::raw_name() const
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{
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return _m_d_name;
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}
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type_info::type_info(const type_info& rhs)
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{
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// *TBD*
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// "Since the copy constructor and assignment operator for
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// type_info are private to the class, objects of this type
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// cannot be copied." - 18.5.1
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// _m_data = NULL;
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// _m_d_name = new char[strlen(rhs._m_d_name) + 1];
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// if (_m_d_name != NULL)
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// strcpy( (char*)_m_d_name, rhs._m_d_name );
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}
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type_info& type_info::operator=(const type_info& rhs)
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{
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// *TBD*
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// if (this != &rhs) {
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// this->type_info::~type_info();
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// this->type_info::type_info(rhs);
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// }
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return *this;
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}
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