xvector3.h

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#pragma once

#include "xvector2.h"

namespace nmx::gsl::vec {

template<class TOUT, class TIN>
struct IVCalc1 {
    template<class FN, class... X>
    inline friend TOUT apply(FN fn, const TIN &v, const X &... x) {
        TOUT vout(v.size());
        for (size_t idx = 0; idx < v.size(); idx++) {
            vout[idx] = fn(v[idx], x[idx]...);
        }
        return vout;
    }

    inline friend TOUT operator+(const TIN &v1, const TIN &v2) {
        auto v = apply(std::plus<double>(), v1, v2);
        return v;
    }

    inline friend TOUT operator-(const TIN &v1, const TIN &v2) {
        return apply(std::minus<double>(), v1, v2);
    }

    inline friend TOUT operator*(const TIN &v1, const TIN &v2) {
        return apply(std::multiplies<double>(), v1, v2);
    }

    inline friend TOUT operator/(const TIN &v1, const TIN &v2) {
        return apply(std::divides<double>(), v1, v2);
    }

    inline friend TOUT operator-(const TIN &v) { //
        return apply(std::negate<double>(), v);
    }

    inline friend TOUT operator*(double c, const TIN &v2) {
        return apply([c](double x) { return x * c; }, v2);
    }

    inline friend TOUT operator/(const TIN &v1, double c) {
        return apply(
            [c](double x) {
                Check::error_if(nmx_msg, c == 0.);
                return x / c;
            },
            v1);
    }
};

} // namespace nmx::gsl::vec