Chapter Darray
I use the MACRO SAFE_FREE(p) to free memory, but I want to test that
wheather the memory was free safely or not. So when a darray was
destroied, I still used darray_foreach() to print the darray. If you test
it, you'll find that it still prints many integer numbers which are
erratic.
What is the expected output? What do you see instead?
I think when a darray is destroied, there are no numbers to print, because:
SAFE_FREE(thiz->data);
SAFE_FREE(thiz);
But in fact, many erratic numbers are printed.
Please provide any additional information below.
So I check the code. And fortunately, finally I found.
We use function free() to free memory safely
free() and malloc() must come in pairs.
The real memory area is thiz->data, so we free thiz->data and make the
pointer thiz point to NULL.
I think the above mentioned can avoid the problem.
Just like the following:
SAFE_FREE(thiz->data);
thix = NULL;
Original issue reported on code.google.com by
gary.li....@gmail.comon 29 Apr 2010 at 6:54