TypeInfo.cpp

/* ***** BEGIN LICENSE BLOCK *****
 * FW4SPL - Copyright (C) IRCAD, 2009-2017.
 * Distributed under the terms of the GNU Lesser General Public License (LGPL) as
 * published by the Free Software Foundation.
 * ****** END LICENSE BLOCK ****** */

#include "fwTools/TypeInfo.hpp"

#include <fwCore/base.hpp>

#include <string.h>

namespace fwTools
{

TypeInfo::TypeInfo()
{
    class Nil
    {
    };
    pInfo_ = &typeid(Nil);
    SLM_ASSERT("pInfo_ not instanced", pInfo_);
}

TypeInfo::TypeInfo(const std::type_info& ti) :
    pInfo_(&ti)
{
    SLM_ASSERT("pInfo_ not instanced", pInfo_);
}

//------------------------------------------------------------------------------

bool TypeInfo::before(const TypeInfo& rhs) const
{
    SLM_ASSERT("pInfo_ not instanced", pInfo_);
    // type_info::before return type is int in some VC libraries
    return pInfo_->before(*rhs.pInfo_) != 0;
}

//------------------------------------------------------------------------------

const std::type_info& TypeInfo::type_info() const
{
    SLM_ASSERT("pInfo_ not instanced", pInfo_);
    return *pInfo_;
}

//------------------------------------------------------------------------------

const char* TypeInfo::name() const
{
    SLM_ASSERT("pInfo_ not instanced", pInfo_);
    return pInfo_->name();
}

//------------------------------------------------------------------------------

TypeInfo& TypeInfo::operator=(const TypeInfo& rhs)
{
    pInfo_ = rhs.pInfo_;
    return *this;
}

// Comparison operators

bool operator==(const TypeInfo& lhs, const TypeInfo& rhs)
// type_info::operator== return type is int in some VC libraries
// typeinfo can have different ptr on the same strucure !!!!
//http://gcc.gnu.org/ml/gcc/2002-05/msg02085.html
{
    return strcmp(lhs.type_info().name(), rhs.type_info().name() ) == 0;
}

//------------------------------------------------------------------------------

bool operator!=(const TypeInfo& lhs, const TypeInfo& rhs)
{
    return !(lhs == rhs);
}

//------------------------------------------------------------------------------

bool operator<(const TypeInfo& lhs, const TypeInfo& rhs)
{
    return strcmp(lhs.type_info().name(), rhs.type_info().name() ) < 0;
}

//------------------------------------------------------------------------------

bool operator>(const TypeInfo& lhs, const TypeInfo& rhs)
{
    return strcmp(lhs.type_info().name(), rhs.type_info().name() ) > 0;
}

//------------------------------------------------------------------------------

bool operator<=(const TypeInfo& lhs, const TypeInfo& rhs)
{
    return strcmp(lhs.type_info().name(), rhs.type_info().name() ) <= 0;
}

//------------------------------------------------------------------------------

bool operator>=(const TypeInfo& lhs, const TypeInfo& rhs)
{
    return strcmp(lhs.type_info().name(), rhs.type_info().name() ) >= 0;
}

} // end namespace fwTools