Function typedefs to untangle function pointers. This is from APUE, 3rd Edition. void (*signal(int signo, void (*func)(int)))(int); vs typedef void Sigf

Function typedefs to untangle function pointers. This is from APUE, 3rd Edition. void (*signal(int signo, void (*func)(int)))(int); vs typedef void Sigfunc(int); Sigfunc *signal(int, Sigfunc *);