psds-cpp-2025/01_week/tasks/length_lit/length_lit.cpp at 00e74bf7a4587bb0b3513c11879e00e2c894752c · psds-cpp/psds-cpp-2025 · GitHub

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constexpr long double METER_IN_FOOT = 0.3048;
constexpr long double INCH_IN_FOOT = 12;
constexpr long double METER_IN_INCH = 0.0254;

constexpr long double operator""_ft_to_m(long double foot) {
    return foot * METER_IN_FOOT;
}

constexpr long double operator""_m_to_ft(long double meter) {
    return meter / METER_IN_FOOT;
}

constexpr long double operator""_ft_to_cm(long double foot) {
    return foot * METER_IN_FOOT * 100;
}

constexpr long double operator""_cm_to_ft(long double cm) {
    return cm / (METER_IN_FOOT * 100);
}

constexpr long double operator""_ft_to_in(long double foot) {
    return foot * INCH_IN_FOOT;
}

constexpr long double operator""_in_to_ft(long double inch) {
    return inch / INCH_IN_FOOT;
}

constexpr long double operator""_in_to_m(long double inch) {
    return inch * METER_IN_INCH;
}

constexpr long double operator""_m_to_in(long double meter) {
    return meter / METER_IN_INCH;
}

constexpr long double operator""_in_to_cm(long double inch) {
    return inch * METER_IN_INCH * 100;
}

constexpr long double operator""_cm_to_in(long double inch) {
    return inch / (METER_IN_INCH * 100);
}

constexpr long double operator""_m_to_cm(long double meter) {
    return meter * 100;
}

constexpr long double operator""_cm_to_m(long double cm) {
    return cm / 100;
}