TnbFixedBufferStr.h

[詳解]

#pragma once
#include "TnbStr.h"
 
 
 
//TNB Library
namespace TNB
{
 
 
 
template<int LEN, char PADDING = 0>
class CFixedBufferStrT
{
public:
 
    enum 
    {
        MAXIMUM_LENGTH = LEN,   
        PADDING_CHAR = PADDING  
    };
 
    CFixedBufferStrT(void)
    {
        Empty();
    }
 
    CFixedBufferStrT(LPCSTR lpsz)
    {
        Set(lpsz);
    }
 
    CFixedBufferStrT& operator=(const CFixedBufferStrT& other)
    {
        Set(other.Get());
        return *this;
    }
 
    CFixedBufferStrT& operator=(LPCSTR lpsz)
    {
        Set(lpsz);
        return *this;
    }
 
    void Set(LPCSTR lpsz)
    {
        CAscii s;
        s.SetFromLeft(lpsz, LEN);
        ASSERT( s.GetLength() <= LEN );
        Empty();
        memcpy(m_dat, s, s.GetLength());
    }
 
    void Empty(void)
    {
        loop ( i, LEN )
        {
            m_dat[i] = PADDING_CHAR;
        }
    }
 
    CAscii Get(void) const
    {
        CAscii s;
        s.SetFromLeft(m_dat, LEN);
        return s;
    }
 
    LPCSTR Refer(void) const
    {
        return m_dat;
    }
 
    size_t GetLength(void) const
    {
        CAscii s;
        s.SetFromLeft(m_dat, LEN);
        return s.GetLength();
    }
 
    size_t GetMaximumLength(void) const
    {
        return LEN;
    }
 
private:
    char    m_dat[LEN]; 
};
 
 
 
}; // TNB