Right now I'm looking over some C code and they have some pointer syntax that I'm confused about. So first they declared a pointer like so:
Then later on they wrote:
p_tx_buf = malloc(...math... );
The stuff in the middle is just math to calculate the size of a file, I'm assuming it's not important. After that, they wrote:
p_tx_buf = 0
I'm rather confused about the
. How does that work with an integer pointer? I thought the
 was for indexing things, so I'm confused on how you can use this with a pointer.