Content

RectL

This union represents four 64-bit integer values or a 64-bit integer rectangle.

You can find more information in comments below.

union RectL
{
    struct
    {
        long long Left;
        long long Top;
        long long Right;
        long long Bottom;
    };
    struct
    {
        PointL LeftTop;
        PointL RightBottom;
    };
    long long Data[4];

    long long operator[](const int index) const; // Return element
    long long &operator[](const int index); // Return element
    explicit operator RectD() const; // Convert to RectD

    bool is_valid() const; // Return whether right border isn't less than left and bottom isn't less than top
    bool is_empty() const; // Return whether right border is same as left and bottom is same as top
    bool is_zero() const; // Return whether either right border is same to left or bottom is same to top
    bool has_negative() const; // Whether there is a negative element
    bool has_positive() const; // Whether there is a positive element
    long long width() const; // Rectangle width
    long long height() const; // Rectangle height
    void validate(); // Make width and height not negative
};

Following operators are also available.

bool operator==(const RectL &a, const RectL &b); // Check if rects are equal
bool operator!=(const RectL &a, const RectL &b); // Check if rects are not equal
RectL operator+(const RectL &a, const long long value); // Add rect and value
RectL operator-(const RectL &a, const long long value); // Subtract rect and value
RectL operator/(const RectL &a, const long long value); // Divide rect and value
RectL operator*(const RectL &a, const long long value); // Multiply rect and value
RectL operator+(const long long value, const RectL &a); // Add value and rect
RectL operator-(const long long value, const RectL &a); // Subtract value and rect
RectL operator/(const long long value, const RectL &a); // Divide value and rect
RectL operator*(const long long value, const RectL &a); // Multiply value and rect
RectL &operator+=(RectL &a, const long long value); // Add value to rect
RectL &operator-=(RectL &a, const long long value); // Subtract value from rect
RectL &operator/=(RectL &a, const long long value); // Divide rect on value
RectL &operator*=(RectL &a, const long long value); // Multiply rect on value
RectL operator+(const RectL &a, const RectL &b); // Find bounding rect for both rects
RectL operator*(const RectL &a, const RectL &b); // Calculate intersection
RectL &operator+=(RectL &a, const RectL &b); // Find bounding rect for both rects and store it in first one
RectL &operator*=(RectL &a, const RectL &b); // Calculate intersection and store it in first one
RectL operator+(const RectL &a, const PointL &shift); // Return moved in shift direction rect
RectL operator-(const RectL &a, const PointL &shift); // Return moved in opposite to shift direction rect
RectL operator*(const RectL &a, const PointL &shift); // Return scaled in shift direction rect
RectL &operator+=(RectL &a, const PointL &shift); // Move rect in shift direction
RectL &operator-=(RectL &a, const PointL &shift); // Move rect in direction opposite to shift
RectL &operator*=(RectL &a, const PointL &shift); // Scale rect in shift direction
std::wostream &operator<<(std::wostream &stream, const RectL &a); // Output as source code