quat_io.hpp

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#pragma once
 
#include <iostream>
#include <string>
#include <sstream>
 
#include "quat.hpp"
 
namespace nem
{
    static constexpr const char* QUAT_SEPARATOR = " + ";
    static constexpr const char* QUAT_L_BRACE = "(";
    static constexpr const char* QUAT_R_BRACE = ")";
 
    template<typename T>
    std::ostream& operator<<(std::ostream& os, const nem::quat_t<T>& q)
    {
        os << QUAT_L_BRACE;
        os << q.s << QUAT_SEPARATOR;
        os << q.x << "i" << QUAT_SEPARATOR;
        os << q.y << "j" << QUAT_SEPARATOR;
        os << q.z << "k";
        os << QUAT_R_BRACE;
        return os;
    }
 
    template<typename T>
    std::istream& operator>>(std::istream& is, nem::quat_t<T>& q)
    {
        is >> q.s;
        is >> q.x;
        is >> q.y;
        is >> q.z;
        return is;
    }
 
    template<typename T>
    std::string to_str(const nem::quat_t<T>& q)
    {
        std::stringstream ss;
        ss << QUAT_L_BRACE;
        ss << q.s << QUAT_SEPARATOR;
        ss << q.x << "i" << QUAT_SEPARATOR;
        ss << q.y << "j" << QUAT_SEPARATOR;
        ss << q.z << "k";
        ss << QUAT_R_BRACE;
        return ss.str();
    }
}