www.pudn.com > calc5.zip > Store.h

#if !defined STORE_H 
#define STORE_H 
//------------------------------------ 
//  store.h 
//  (c) Bartosz Milewski, 1994 
//------------------------------------ 
#include  
#include  
class SymbolTable; 
 
class Store 
{ 
public: 
    explicit Store (SymbolTable & symTab); 
    bool IsInit (int id) const 
    { 
		assert (id >= 0); 
        return id < _aIsInit.size () && _aIsInit [id]; 
    } 
    double Value (int id) const 
    { 
		assert (id >= 0); 
        assert (IsInit (id)); 
        return _aCell [id]; 
    } 
    void SetValue (int id, double val) 
    { 
		assert (id >= 0); 
        if (id < _aCell.size ()) 
        { 
            _aCell [id] = val; 
            _aIsInit [id] = true; 
        } 
        else 
        { 
            AddValue (id, val); 
        } 
    } 
 
    void AddValue (int id, double val) 
    { 
		assert (id >= 0); 
		_aCell.resize (id + 1); 
		_aIsInit.resize (id + 1); 
        _aCell [id] = val; 
        _aIsInit [id] = true; 
    } 
private: 
    std::vector  _aCell; 
    std::vector    _aIsInit; 
}; 
 
#endif