On virtual memory systems, it is a safe bet that malloc will "never" fail to return a value. It is just good form to check the return value of system calls. If

On virtual memory systems, it is a safe bet that malloc will "never" fail to return a value. It is just good form to check the return value of system calls. If you program for embedded systems (e.g. Arduino) and bring over the bad habit of never checking malloc, you are going to be in for a surprise. I'm not sure, but I believe on iOS, malloc could fail on the device.