CoordinateExpr.h

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/*
 * Developed for the LSST Data Management System.
 * This product includes software developed by the LSST Project
 * (https://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
/*
 * A boolean pair class used to express the output of spatial predicates on Point and Extent.
 */
#ifndef LSST_GEOM_COORDINATEEXPR_H
#define LSST_GEOM_COORDINATEEXPR_H
 
#include "lsst/geom/CoordinateBase.h"
 
namespace lsst {
namespace geom {

template <int N>
class CoordinateExpr : public CoordinateBase<CoordinateExpr<N>, bool, N> {
    typedef CoordinateBase<CoordinateExpr<N>, bool, N> Super;
 
public:
    explicit CoordinateExpr(bool val = false) noexcept : Super(val) {}

    template <typename Vector>
    explicit CoordinateExpr(Eigen::MatrixBase<Vector> const& vector) : Super(vector) {}
 
    CoordinateExpr(CoordinateExpr const&) noexcept = default;
    CoordinateExpr(CoordinateExpr&&) noexcept = default;
    CoordinateExpr& operator=(CoordinateExpr const&) noexcept = default;
    CoordinateExpr& operator=(CoordinateExpr&&) noexcept = default;
    ~CoordinateExpr() noexcept = default;

    CoordinateExpr and_(CoordinateExpr const& rhs) const noexcept;
    CoordinateExpr or_(CoordinateExpr const& rhs) const noexcept;
    CoordinateExpr not_() const noexcept;
};

template <int N>
inline bool all(CoordinateExpr<N> const& expr) noexcept {
    for (int n = 0; n < N; ++n)
        if (!expr[n]) return false;
    return true;
}

template <int N>
inline bool any(CoordinateExpr<N> const& expr) noexcept {
    for (int n = 0; n < N; ++n)
        if (expr[n]) return true;
    return false;
}
 
typedef CoordinateExpr<2> CoordinateExpr2;
typedef CoordinateExpr<3> CoordinateExpr3;
 
}  // namespace geom
}  // namespace lsst
 
#endif