MDMFLengthAttribute.h

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#pragma once
 
#include <ostream>
 
namespace ogdf {
namespace embedder {
 
class MDMFLengthAttribute {
public:
    MDMFLengthAttribute() { a = b = 0; }
 
    MDMFLengthAttribute(int _a, int _b = 0) : a(_a), b(_b) { }
 
    MDMFLengthAttribute(const MDMFLengthAttribute& x) : a(x.a), b(x.b) { }
 
    ~MDMFLengthAttribute() { }
 
    MDMFLengthAttribute& operator=(const MDMFLengthAttribute& x) {
        a = x.a;
        b = x.b;
        return *this;
    }
 
    MDMFLengthAttribute& operator+=(const MDMFLengthAttribute& x) {
        a += x.a;
        b += x.b;
        return *this;
    }
 
    MDMFLengthAttribute& operator-=(const MDMFLengthAttribute& x) {
        a -= x.a;
        b -= x.b;
        return *this;
    }
 
    //the two components:
    int a;
    int b;
};
 
inline bool operator==(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) {
    return x.a == y.a && x.b == y.b;
}
 
inline bool operator!=(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) {
    return !(x == y);
}
 
inline bool operator<(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) {
    return x.a < y.a || (x.a == y.a && x.b < y.b);
}
 
inline bool operator>(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) { return y < x; }
 
inline bool operator>=(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) {
    return !(x < y);
}
 
inline bool operator<=(const MDMFLengthAttribute& x, const MDMFLengthAttribute& y) {
    return !(y < x);
}
 
inline MDMFLengthAttribute operator+(MDMFLengthAttribute x, const MDMFLengthAttribute& y) {
    x += y;
    return x;
}
 
inline MDMFLengthAttribute operator-(MDMFLengthAttribute x, const MDMFLengthAttribute& y) {
    x -= y;
    return x;
}
 
inline std::ostream& operator<<(std::ostream& s, const MDMFLengthAttribute& x) {
    s << x.a << ", " << x.b;
    return s;
}
 
}
}