Question

I was looking over some C++ code and I ran into this memcpy function. I understand what memcpy does but they add an int to the source. I tried looking up the source code for memcpy but I can’t seem to understand what the adding is actually doing to the memcpy function.

memcpy(Destination, SourceData + intSize, SourceDataSize);

In other words, I want to know what SourceData + intSize is doing. (I am trying to convert this to java.)

EDIT:

So here is my attempt at doing a memcpy function in java using a for loop…

for(int i = 0 ; i < SourceDataSize ; i ++ ) {
      Destination[i] = SourceData[i + 0x100];
}

Answer 1

It is the same thing as:

memcpy(&Destination[0], &SourceData[intSize], SourceDataSize);