GaussLegendre.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include "mathlib_export.h"
 
#include "WeightedSum.h"
 
namespace MathLib
{

template <unsigned ORDER>
struct GaussLegendre {
    static MATHLIB_EXPORT const unsigned Order = ORDER;
    static MATHLIB_EXPORT const double X[Order];
    static MATHLIB_EXPORT const double W[Order];
};
 
#ifndef _MSC_VER  // The following explicit instantatiation declaration does not
                  // compile on that particular compiler.
template <>
double const GaussLegendre<1>::X[1];
template <>
double const GaussLegendre<1>::W[1];
template <>
double const GaussLegendre<2>::X[2];
template <>
double const GaussLegendre<2>::W[2];
template <>
double const GaussLegendre<3>::X[3];
template <>
double const GaussLegendre<3>::W[3];
template <>
double const GaussLegendre<4>::X[4];
template <>
double const GaussLegendre<4>::W[4];
#endif
 
}  // namespace MathLib