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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:cindent:textwidth=0:
*
* Copyright (C) 2005 Dell Inc.
* by Michael Brown <Michael_E_Brown@dell.com>
* Licensed under the Open Software License version 2.1
*
* Alternatively, you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*/
#define LIBSMBIOS_SOURCE
#include "TokenImpl.h"
using namespace std;
namespace smbios
{
TokenTableIteratorBase::TokenTableIteratorBase (const ITokenTable *initialTable, int typeToMatch)
:matchType(typeToMatch), table(initialTable), current(-1)
{
if( table == 0 )
current = -2;
incrementIterator();
}
IToken * TokenTableIteratorBase::dereference () const
{
const TokenTable *CTTable = dynamic_cast<const TokenTable *>(table);
if( current >= 0 && static_cast<unsigned int>(current) >= CTTable->tokenList.size() )
current = -2; // should _never_ get here.
if( current > -1 )
{
return CTTable->tokenList[current] ;
}
throw DerefNullPointerImpl("tried to dereference non-existent token");
}
void TokenTableIteratorBase::incrementIterator()
{
if( current == -2 )
return;
const TokenTable *CTTable = dynamic_cast<const TokenTable *>(table);
size_t size = CTTable->tokenList.size();
do
{
++current;
}
while(
matchType != -1 &&
current >= 0 &&
static_cast<unsigned int>(current) < size &&
CTTable->tokenList[current]->getType() != static_cast<u32>(matchType)
);
// don't overflow the size of the table.
// be careful about signed vs unsigned comparisons.
if( current >= 0 && static_cast<unsigned int>(current) >= size )
current = -2;
return;
}
//Prefix ++
TokenTableIterator & TokenTableIterator::operator ++ ()
{
if( current > -1 )
incrementIterator();
return *this;
}
//Postfix ++
const TokenTableIterator TokenTableIterator::operator ++ (int)
{
const TokenTableIterator oldValue = *this;
++(*this);
return oldValue;
}
//Prefix ++
ConstTokenTableIterator & ConstTokenTableIterator::operator ++ ()
{
if( current > -1 )
incrementIterator();
return *this;
}
//Postfix ++
const ConstTokenTableIterator ConstTokenTableIterator::operator ++ (int)
{
const ConstTokenTableIterator oldValue = *this;
++(*this);
return oldValue;
}
}
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