ZBasic System Library
186
ZBasic Microcontrollers
Type
Function returning Integer
Invocation
MemCmp(addr1, addr2, count)
Parameter
Method
Type
Description
addr1
ByVal
integral
The address of the first block of memory to be compared.
addr2
ByVal
integral
The address of the second block of memory to be compared.
count
ByVal
integral
The number of bytes to compare.
Discussion
This function can be used to compare two arbitrary sequences of data in RAM. If all of the bytes in the
two blocks are the same (over the given number of bytes to compare) the value zero is returned.
Otherwise, the return value will be greater than zero if at the position of the first mismatch the byte in the
first block is greater than the corresponding byte in the second block. If the converse is true, the return
value will be less than zero.
All three parameters are converted internally to UnsignedInteger.
Example
Dim a1(1 to 10) as Byte
Dim a2(1 to 10) as Byte
Dim ival as Integer
ival = MemCmp(a1.DataAddress, a2.DataAddress, SizeOf(a1))
Compatibility
This function is not available in BasicX compatibility mode.
See Also
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