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/** @file
* @brief Comparator template
*//*
* Authors:
* ? <?@?.?>
*
* Copyright ?-? authors
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
*/
#ifndef LIB2GEOM_SEEN_ORD_H
#define LIB2GEOM_SEEN_ORD_H
namespace {
enum Cmp {
LESS_THAN=-1,
GREATER_THAN=1,
EQUAL_TO=0
};
static inline Cmp operator-(Cmp x) {
switch(x) {
case LESS_THAN:
return GREATER_THAN;
case GREATER_THAN:
return LESS_THAN;
case EQUAL_TO:
return EQUAL_TO;
}
}
template <typename T1, typename T2>
inline Cmp cmp(T1 const &a, T2 const &b) {
if ( a < b ) {
return LESS_THAN;
} else if ( b < a ) {
return GREATER_THAN;
} else {
return EQUAL_TO;
}
}
}
#endif
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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