#ifndef PFOR_PFOR_STRATEGIES_OPENMP_H
#define PFOR_PFOR_STRATEGIES_OPENMP_H

#include <cstdint>

#include "parameters.h"

namespace pfor {

template<bool, typename, typename> struct ForLoopOMP;

template<typename E, typename Range>
struct ForLoopOMP<false, E, Range> {
	static void eval(Range const& range, E e) {
		if(range.step() > 0)
			for(auto it = +range.begin(); it < range.end(); it += range.step()) e[it];
		else
			for(auto it = +range.begin(); it > range.end(); it += range.step()) e[it];
	}
};

template<typename E, typename Range>
struct ForLoopOMP<true, E, Range> {
	static void eval(Range const& range, E e) {
		if(range.step() > 0) {
			#pragma omp parallel for num_threads(ParallelForParameters::nThreads)
			for(auto it = +range.begin(); it < range.end(); it += range.step()) e[it];
		} else {
			#pragma omp parallel for num_threads(ParallelForParameters::nThreads)
			for(auto it = +range.begin(); it > range.end(); it += range.step()) e[it];
		}
	}
};

}

#endif