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/*
* XEvil(TM) Copyright (C) 1994,2000 Steve Hardt and Michael Judge
* http://www.xevil.com
* satan@xevil.com
*
* This program is free software; 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.
*
* You should have received a copy of the GNU General Public License
* along with this program, the file "gpl.txt"; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA, or visit http://www.gnu.org.
*/
// "id.cpp"
#if X11
#ifndef NO_PRAGMAS
#pragma implementation "id.h"
#endif
#endif
#include "stdafx.h"
#include <limits.h>
#include "utils.h"
#include "id.h"
// Lame-o HP compiler won't let this be inline.
Identifier::Identifier() {
invalidate();
}
void Identifier::read(InStreamP in) {
u_short val = in->read_short();
if (val == 0xffff) {
index = INVALID;
}
else {
index = val;
}
unique = in->read_int();
}
int Identifier::get_write_length() {
return sizeof(short) + sizeof(int);
}
void Identifier::write(OutStreamP out) const {
u_short val;
if (index == INVALID) {
val = 0xffff;
}
else {
assert(index < USHRT_MAX); // strictly less than to avoid 0xffff
val = (u_short)index;
}
out->write_short(val);
out->write_int(unique);
}
Boolean Identifier::operator == (const Identifier &other) const {
return (index != INVALID) && (other.index == index)
&& (other.unique == unique);
}
Boolean Identifier::operator != (const Identifier &other) const {
return (index == INVALID) || (other.index != index)
|| (other.unique != unique);
}
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