minoptmax.h

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/*
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 * This program is free software; you can redistribute it and/or
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#ifndef MINOPTMAX_PROTO_H
#define MINOPTMAX_PROTO_H
 
#include <limits>
 
template<class T=int>
class MINOPTMAX
{
public:
    T Min() const { return m_hasMin ? m_min : 0; };
    T Max() const { return m_hasMax ? m_max : std::numeric_limits<T>::max(); };
    T Opt() const { return m_hasOpt ? m_opt : Min(); };
 
    bool HasMin() const { return m_hasMin; }
    bool HasMax() const { return m_hasMax; }
    bool HasOpt() const { return m_hasOpt; }
 
    void SetMin( T v ) { m_isNull = false; m_min = v; m_hasMin = true; }
    void SetMax( T v ) { m_isNull = false; m_max = v; m_hasMax = true; }
    void SetOpt( T v ) { m_isNull = false; m_opt = v; m_hasOpt = true; }
 
    bool IsNull() const { return m_isNull; }
 
private:
    bool m_isNull = true;
    T    m_min{};
    T    m_opt{};
    T    m_max{};
    bool m_hasMin = false;
    bool m_hasOpt = false;
    bool m_hasMax = false;
};
 
#endif