TBitArray.h

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#pragma once
 
TOSHI_NAMESPACE_START
 
class TOSHI_API TBitArray
{
public:
    // Constructors/destructor
    constexpr TBitArray()
        : m_pBuffer( TNULL ), m_uiInitialisedWith( 0 ), m_iSize( 0 )
    {}
 
    TBitArray( TINT a_iNumBits, TINT a_iInitialiseWith );
 
    ~TBitArray();
 
    // Allocates memory for the specified number of bits
    void Create( TINT a_iNumBits, TINT a_iInitialiseWith );
 
    // Frees the buffer
    void Destroy();
 
    // Resets all the bits to their initial state
    void Reset();
 
    // Sets a bit at a_iIndex to a_iValue
    void SetBit( TINT a_iIndex, TINT a_iValue );
 
    // Sets a bit at a_iIndex to 1
    void SetBit( TINT a_iIndex );
 
    // Toggles a bit at a_iIndex
    void ToggleBit( TINT a_iIndex );
 
    // Sets a bit at a_iIndex to 0
    void ClearBit( TINT a_iIndex );
 
    // Returns 1 if a bit at a_iIndex is set or zero if it's not set
    TINT GetBit( TINT a_iIndex ) const;
 
    // Returns index of the first set (1) bit
    TINT FindFirstSetBit();
 
    // Returns index of the first clear (0) bit
    TINT FindFirstClearBit();
 
    // Returns number of bytes allocated for the buffer
    TINT GetNumAllocatedBytes() const;
 
private:
    TUINT32* m_pBuffer;
    TINT     m_iSize;
    TUINT    m_uiInitialisedWith;
};
 
TOSHI_NAMESPACE_END