lyx_mirror/src/support/lyxalgo.h

// -*- C++ -*-
/**
 * \file lyxalgo.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Lars Gullik Bjønnes
 *
 * Full author contact details are available in file CREDITS.
 *
 * A variety of useful templates.
 */

#ifndef LYX_ALGO_H
#define LYX_ALGO_H

namespace lyx {


/// Returns true if the sequence first,last is sorted, false if not.
template <class For>
bool sorted(For first, For last)
{
	if (first == last) return true;
	For tmp = first;
	while (++tmp != last) {
		if (*tmp < *first++) return false;
	}
	return true;
}


/// Cmp is the same Cmp as you would pass to std::sort.
template <class For, class Cmp>
bool sorted(For first, For last, Cmp cmp)
{
	if (first == last) return true;
	For tmp = first;
	while (++tmp != last) {
		if (cmp(*tmp, *first++)) return false;
	}
	return true;
}


} // namespace lyx

#endif // LYX_ALGO_H