HPAVC/HPAVC CD-ROM.iso/pc/WD_SRC.ZIP/SYSTEM/DYNARRAY.CPP

C/C++ Source or Header | 1994-12-19 | 13.6 KB | 700 lines

#include "..\Source\LastWolf.hpp"


// Functions for dynamic array classes
// Goes:  DWORD functions, WORD functions, BYTE functions, and Pointer functions


// DWORD functions
//-------------------------------------------------


MDWordArray::MDWordArray()
{
    pDWordArray = NULL;
    nElements = 0;
}


MDWordArray::~MDWordArray()
{
    if( nElements > 0 )
        free( pDWordArray );
}


MDWordArray &MDWordArray::operator=( MDWordArray ©From )
{
    SetSize( copyFrom.nElements );

    memcpy( pDWordArray, copyFrom.pDWordArray, sizeof(DWORD)*nElements );

    return *this;
}


DWORD MDWordArray::Get( UWORD index )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    return pDWordArray[index];
}


BOOL MDWordArray::Set( UWORD index, DWORD newVal )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    pDWordArray[index] = newVal;

    return TRUE;
}


UWORD MDWordArray::NumElements()
{
    return nElements;
}

BOOL MDWordArray::Insert( UWORD index, DWORD toInsert )
{
    DWORD *newArray;

#ifdef CHECK_DYNARRAYS
    ++nElements;
    CheckIndex(index);
    --nElements;
#endif

    // Create a new array.
    newArray = new DWORD[nElements+1];

    // Copy the old array into the new one, start inserting at index.
    memcpy( newArray, pDWordArray, index*sizeof(DWORD) );
    memcpy( &newArray[index+1], &pDWordArray[index], (nElements-index)*sizeof(DWORD) );

    ++nElements;

    // Free the old array and set our pointer to the new one
    free( pDWordArray );
    pDWordArray = newArray;

    // Put the new value in there
    Set( index, toInsert );

    return TRUE;
}


BOOL MDWordArray::Delete( UWORD index )
{
    DWORD *newArray;
    UWORD copyIndex;
    BOOL bDeleted;

#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    // Special case where we don't need to realloc a new array and copy...
    if( --nElements == 0 )
    {
        free( pDWordArray );
        pDWordArray = NULL;

        return TRUE;
    }

    // Create a new array
    newArray = new DWORD[nElements];

    // Copy the old array into the new one, skipping the one at index
    bDeleted = FALSE;
    for( copyIndex=0; copyIndex < NumElements(); copyIndex++ )
    {
        // If we're at index, skip the one we want to delete
        if( copyIndex == index )
            bDeleted = TRUE;

        if( bDeleted == TRUE )
            newArray[copyIndex] = pDWordArray[copyIndex+1];
        else
            newArray[copyIndex] = pDWordArray[copyIndex];
    }

    // Free the old array and set our pointer to the new one
    free( pDWordArray );
    pDWordArray = newArray;

    return TRUE;
}


BOOL MDWordArray::Append( DWORD toAdd )
{
    // Just insert an element at the end
    return Insert( nElements, toAdd );
}


BOOL MDWordArray::SetSize( UWORD newSize )
{
    free( pDWordArray );
    pDWordArray = NULL;

    nElements = newSize;

    if( newSize > 0 )
        pDWordArray = new DWORD[newSize];

    return TRUE;
}

BOOL MDWordArray::CheckIndex( UWORD index )
{
    char error[256];

    if( index < nElements )
        return TRUE;

    sprintf( error, "Invalid index, %d, attempted in MDWordArray, exiting.", index );
    puts( error );

    return FALSE;
}



// WORD functions
//-------------------------------------------------


MWordArray::MWordArray()
{
    pWordArray = NULL;
    nElements = 0;
}


MWordArray::~MWordArray()
{
    if( nElements > 0 )
        free( pWordArray );
}


MWordArray &MWordArray::operator=( MWordArray ©From )
{
    SetSize( copyFrom.nElements );

    memcpy( pWordArray, copyFrom.pWordArray, sizeof(WORD)*nElements );

    return *this;
}


WORD MWordArray::Get( UWORD index )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    return pWordArray[index];
}


BOOL MWordArray::Set( UWORD index, WORD newVal )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    pWordArray[index] = newVal;

    return TRUE;
}


UWORD MWordArray::NumElements()
{
    return nElements;
}

BOOL MWordArray::Insert( UWORD index, WORD toInsert )
{
    WORD *newArray;

#ifdef CHECK_DYNARRAYS
    ++nElements;
    CheckIndex(index);
    --nElements;
#endif

    // Create a new array
    newArray = new WORD[nElements+1];

    // Copy the old array into the new one, start inserting at index.
    memcpy( newArray, pWordArray, index*sizeof(DWORD) );
    memcpy( &newArray[index+1], &pWordArray[index], (nElements-index)*sizeof(DWORD) );

    ++nElements;

    // Free the old array and set our pointer to the new one
    free( pWordArray );
    pWordArray = newArray;

    // Put the new value in there
    Set( index, toInsert );

    return TRUE;
}


BOOL MWordArray::Delete( UWORD index )
{
    WORD *newArray;
    UWORD copyIndex;
    BOOL bDeleted;

#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    // Special case where we don't need to realloc a new array and copy...
    if( --nElements == 0 )
    {
        free( pWordArray );
        pWordArray = NULL;

        return TRUE;
    }

    // Create a new array
    newArray = new WORD[nElements];

    // Copy the old array into the new one, skipping the one at index
    bDeleted = FALSE;
    for( copyIndex=0; copyIndex < NumElements(); copyIndex++ )
    {
        // If we're at index, skip the one we want to delete
        if( copyIndex == index )
            bDeleted = TRUE;

        if( bDeleted == TRUE )
            newArray[copyIndex] = pWordArray[copyIndex+1];
        else
            newArray[copyIndex] = pWordArray[copyIndex];
    }

    // Free the old array and set our pointer to the new one
    free( pWordArray );
    pWordArray = newArray;

    return TRUE;
}


BOOL MWordArray::Append( WORD toAdd )
{
    // Just insert an element at the end
    return Insert( nElements, toAdd );
}


BOOL MWordArray::SetSize( UWORD newSize )
{
    free( pWordArray );
    pWordArray = NULL;

    nElements = newSize;

    if( newSize > 0 )
        pWordArray = new WORD[newSize];

    return TRUE;
}


BOOL MWordArray::CheckIndex( UWORD index )
{
    char error[256];

    if( index < nElements )
        return TRUE;

    sprintf( error, "Invalid index, %d, attempted in MWordArray, exiting.", index );
    puts( error );

    return FALSE;
}





// BYTE functions
//-------------------------------------------------


MByteArray::MByteArray()
{
    pByteArray = NULL;
    nElements = 0;
}


MByteArray::~MByteArray()
{
    if( nElements > 0 )
        free( pByteArray );
}


MByteArray &MByteArray::operator=( MByteArray ©From )
{
    SetSize( copyFrom.nElements );

    memcpy( pByteArray, copyFrom.pByteArray, sizeof(BYTE)*nElements );

    return *this;
}


BYTE MByteArray::Get( UWORD index )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    return pByteArray[index];
}


BOOL MByteArray::Set( UWORD index, BYTE newVal )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    pByteArray[index] = newVal;

    return TRUE;
}


UWORD MByteArray::NumElements()
{
    return nElements;
}

BOOL MByteArray::Insert( UWORD index, BYTE toInsert )
{
    BYTE *newArray;

#ifdef CHECK_DYNARRAYS
    ++nElements;
    CheckIndex(index);
    --nElements;
#endif

    // Create a new array
    newArray = new BYTE[nElements+1];

    // Copy the old array into the new one, start inserting at index.
    memcpy( newArray, pByteArray, index*sizeof(DWORD) );
    memcpy( &newArray[index+1], &pByteArray[index], (nElements-index)*sizeof(DWORD) );

    ++nElements;

    // Free the old array and set our pointer to the new one
    free( pByteArray );
    pByteArray = newArray;

    // Put the new value in there
    Set( index, toInsert );

    return TRUE;
}


BOOL MByteArray::Delete( UWORD index )
{
    BYTE *newArray;
    UWORD copyIndex;
    BOOL bDeleted;

#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    // Special case where we don't need to realloc a new array and copy...
    if( --nElements == 0 )
    {
        free( pByteArray );
        pByteArray = NULL;

        return TRUE;
    }

    // Create a new array
    newArray = new BYTE[nElements];

    // Copy the old array into the new one, skipping the one at index
    bDeleted = FALSE;
    for( copyIndex=0; copyIndex < NumElements(); copyIndex++ )
    {
        // If we're at index, skip the one we want to delete
        if( copyIndex == index )
            bDeleted = TRUE;

        if( bDeleted == TRUE )
            newArray[copyIndex] = pByteArray[copyIndex+1];
        else
            newArray[copyIndex] = pByteArray[copyIndex];
    }

    // Free the old array and set our pointer to the new one
    free( pByteArray );
    pByteArray = newArray;

    return TRUE;
}


BOOL MByteArray::Append( BYTE toAdd )
{
    // Just insert an element at the end
    return Insert( nElements, toAdd );
}


BOOL MByteArray::SetSize( UWORD newSize )
{
    free( pByteArray );
    pByteArray = NULL;

    nElements = newSize;

    if( newSize > 0 )
        pByteArray = new BYTE[newSize];

    return TRUE;
}


BOOL MByteArray::CheckIndex( UWORD index )
{
    char error[256];

    if( index < nElements )
        return TRUE;

    sprintf( error, "Invalid index, %d, attempted in MByteArray, exiting.", index );
    puts( error );

    return FALSE;
}



// Pointer functions
//-------------------------------------------------


MPointerArray::MPointerArray()
{
    pPointerArray = NULL;
    nElements = 0;
}


MPointerArray::~MPointerArray()
{
    if( nElements > 0 )
        free( pPointerArray );
}


MPointerArray &MPointerArray::operator=( MPointerArray ©From )
{
    SetSize( copyFrom.nElements );

    memcpy( pPointerArray, copyFrom.pPointerArray, sizeof(void *)*nElements );

    return *this;
}


void *MPointerArray::Get( UWORD index )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    return pPointerArray[index];
}


BOOL MPointerArray::Set( UWORD index, void *newVal )
{
#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    pPointerArray[index] = newVal;

    return TRUE;
}


UWORD MPointerArray::NumElements()
{
    return nElements;
}

BOOL MPointerArray::Insert( UWORD index, void *toInsert )
{
    void  **newArray;

#ifdef CHECK_DYNARRAYS
    ++nElements;
    CheckIndex(index);
    --nElements;
#endif

    // Create a new array
    newArray = new void *[nElements+1];

    // Copy the old array into the new one, start inserting at index.
    memcpy( newArray, pPointerArray, index*sizeof(DWORD) );
    memcpy( &newArray[index+1], &pPointerArray[index], (nElements-index)*sizeof(DWORD) );

    ++nElements;

    // Free the old array and set our pointer to the new one
    free( pPointerArray );
    pPointerArray = newArray;

    // Put the new value in there
    Set( index, toInsert );

    return TRUE;
}


BOOL MPointerArray::Delete( UWORD index )
{
    void  **newArray;
    UWORD copyIndex;
    BOOL bDeleted;

#ifdef CHECK_DYNARRAYS
    CheckIndex(index);
#endif

    // Special case where we don't need to realloc a new array and copy...
    if( --nElements == 0 )
    {
        free( pPointerArray );
        pPointerArray = NULL;

        return TRUE;
    }

    // Create a new array
    newArray = new void *[nElements];

    // Copy the old array into the new one, skipping the one at index
    bDeleted = FALSE;
    for( copyIndex=0; copyIndex < NumElements(); copyIndex++ )
    {
        // If we're at index, skip the one we want to delete
        if( copyIndex == index )
            bDeleted = TRUE;

        if( bDeleted == TRUE )
            newArray[copyIndex] = pPointerArray[copyIndex+1];
        else
            newArray[copyIndex] = pPointerArray[copyIndex];
    }

    // Free the old array and set our pointer to the new one
    free( pPointerArray );
    pPointerArray = newArray;

    return TRUE;
}


BOOL MPointerArray::Append( void *toAdd )
{
    // Just insert an element at the end
    return Insert( nElements, toAdd );
}


BOOL MPointerArray::SetSize( UWORD newSize )
{
    free( pPointerArray );
    pPointerArray = NULL;

    nElements = newSize;

    if( newSize > 0 )
        pPointerArray = new void *[newSize];

    return TRUE;
}


Index MPointerArray::GetIndexFromPointer( void *pMatch )
{
    WORD retVal;

    retVal = ScanForPointer( pMatch, pPointerArray, nElements );

    if( retVal != -1 )
        return (Index)(nElements - retVal - 1);
    else
        return BAD_INDEX;

/*
    for( i=0; i < nElements; i++ )
        if( pPointerArray[i] == pMatch )
            return i;
*/
}


BOOL MPointerArray::CheckIndex( UWORD index )
{
    char error[256];

    if( index < nElements )
        return TRUE;

    sprintf( error, "Invalid index, %d, attempted in MPointerArray, exiting.", index );
    puts( error );

    return FALSE;
}



#pragma aux ScanForPointer = \
"repnz scasd"    \
"sub edi, 4"    \
"cmp eax,[edi]"    \
"je FOUND"    \
"mov cx,-1"    \
"FOUND:"    \
value [cx]    \
parm [eax] [edi] [ecx];