xzhu's questions

Adobe Reader:

Document Viewer:

For example, to render:

while (head == tail) { head++; a[head] = 0 }

into

while (head == tail)
{
    head++;
    a[head] = 0
}

Is there any interactive or more user-friendly version (or substitution) of GDB for debugging?

Some people suggested CGDB, but after a few tests I found it buggy and unstable.

For example, there is a command "send_arp", I'm not sure which package should I uninstall if I want to remove it.