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Tools.h
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Tools.h
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/* Copyright (C) 2016 Kristian Sloth Lauszus. All rights reserved.
This software may be distributed and modified under the terms of the GNU
General Public License version 2 (GPL2) as published by the Free Software
Foundation and appearing in the file GPL2.TXT included in the packaging of
this file. Please note that GPL2 Section 2[b] requires that all works based
on this software must also be made publicly available under the terms of
the GPL2 ("Copyleft").
Contact information
-------------------
Kristian Sloth Lauszus
Web : http://www.lauszus.com
e-mail : [email protected]
*/
#ifndef __tools_h__
#define __tools_h__
#include <numeric>
#include <vector>
using namespace std;
template<typename VectorType>
vector<size_t> sortIndexes(const VectorType &v) {
// Based on: http://stackoverflow.com/a/12399290/2175837
// Initialize original index locations
vector<size_t> idx(v.size());
iota(idx.begin(), idx.end(), 0);
// Sort indexes based on comparing values in v
sort(idx.begin(), idx.end(), [&v](size_t i1, size_t i2) { return v[i1] < v[i2]; });
return idx;
};
#endif