Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.unix.programmer > #14069

Re: Question about Linux/gcc and the signal() function prototype.

From Rainer Weikusat <rweikusat@talktalk.net>
Newsgroups comp.unix.programmer, comp.lang.c
Subject Re: Question about Linux/gcc and the signal() function prototype.
Date 2022-11-27 12:27 +0000
Message-ID <87lenwfuq4.fsf@doppelsaurus.mobileactivedefense.com> (permalink)
References <tlq9hg$fuhb$1@news.xmission.com> <ygazgcftf5r.fsf@akutech.de> <tlqce3$fuhb$2@news.xmission.com>

Cross-posted to 2 groups.

Show all headers | View raw


gazelle@shell.xmission.com (Kenny McCormack) writes:

[sighandler_t confusion]

> All of this seems to be an artifact of the fact that functions and pointers
> to functions are (basically) the same thing.  This isn't true for any other
> type of object.

It's basically the same as with array types: An object which has a function
type is automatically converted to a pointer to a function when used as
argument of something. But they're nevertheless distinct. Stevens uses

typedef void sighandler(int);
sighandler *signal(int, sighandler *);

in newer editions of APUE.

Back to comp.unix.programmer | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Question about Linux/gcc and the signal() function prototype. gazelle@shell.xmission.com (Kenny McCormack) - 2022-11-25 11:39 +0000
  Re: Question about Linux/gcc and the signal() function prototype. Ralf Fassel <ralfixx@gmx.de> - 2022-11-25 13:03 +0100
    Re: Question about Linux/gcc and the signal() function prototype. gazelle@shell.xmission.com (Kenny McCormack) - 2022-11-25 12:28 +0000
      Re: Question about Linux/gcc and the signal() function prototype. Nicolas George <nicolas$george@salle-s.org> - 2022-11-25 13:05 +0000
        Re: Question about Linux/gcc and the signal() function prototype. gazelle@shell.xmission.com (Kenny McCormack) - 2022-11-25 14:01 +0000
      Re: Question about Linux/gcc and the signal() function prototype. scott@slp53.sl.home (Scott Lurndal) - 2022-11-25 16:57 +0000
      Re: Question about Linux/gcc and the signal() function prototype. Rainer Weikusat <rweikusat@talktalk.net> - 2022-11-27 12:27 +0000
        Re: Question about Linux/gcc and the signal() function prototype. gazelle@shell.xmission.com (Kenny McCormack) - 2022-11-27 13:06 +0000
          Re: Question about Linux/gcc and the signal() function prototype. Kaz Kylheku <864-117-4973@kylheku.com> - 2022-11-28 00:43 +0000
            Re: Question about Linux/gcc and the signal() function prototype. Richard Damon <Richard@Damon-Family.org> - 2022-11-27 21:39 -0500
            Re: Question about Linux/gcc and the signal() function prototype. Rainer Weikusat <rweikusat@talktalk.net> - 2022-11-28 11:47 +0000

csiph-web