Method from_float

src/fl/math/alpha.h:58–60

    constexpr float to_float() const FL_NOEXCEPT { return value / 255.0f; }

    static constexpr alpha8 from_float(float f) FL_NOEXCEPT {
        return alpha8(static_cast<unsigned char>(_clamp(f)));
    }

    alpha8& operator+=(unsigned char rhs) FL_NOEXCEPT { value += rhs; return *this; }
    alpha8& operator-=(unsigned char rhs) FL_NOEXCEPT { value -= rhs; return *this; }