This function of the ⇘ CAA_Memory.library compares "MemoryBlockA" with "MemoryBlockB". The amount of "uiNumberOfBytes" will be checked.

The function will return 0, if the areas are identical. If not, the position of the first discrepancy occurred will be returned.

Input:

pMemoryBlockA	DWORD	Address of memory area MemoryBlockA
pMemoryBlockB	DWORD	Address of memory area MemoryBlockB
uiNumberOfBytes	UINT	Number of bytes to be checked

Output:

MEM.Compare

UINT

Position of first discrepancy, if existent; 0 else.

Example:

abyMemoryBlockA : ARRAY[0..9] OF BYTE := 0,1,2,3,4,5,6,7,8,9 ;

abyMemoryBlockB : ARRAY[0..9] OF BYTE := 0,1,2,0,4,5,6,7,8,9 ;

MEM.Compare(ADR(abyMemoryBlockA),

ADR(abyMemoryBlockB),10) = 4