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Groups > comp.lang.c > #383268

Re: getFirstDayOfMonth()

From Michael S <already5chosen@yahoo.com>
Newsgroups comp.lang.c
Subject Re: getFirstDayOfMonth()
Date 2024-03-03 20:20 +0200
Organization A noiseless patient Spider
Message-ID <20240303202004.00007517@yahoo.com> (permalink)
References (3 earlier) <7VrEN.517245$xHn7.96511@fx14.iad> <urtq7q$1ggh0$1@dont-email.me> <pZGEN.500996$7sbb.11881@fx16.iad> <us00f7$21v55$1@dont-email.me> <NC0FN.35691$zF_1.29507@fx18.iad>

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On Sun, 03 Mar 2024 15:24:29 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

> porkchop@invalid.foo (Mike Sanders) writes:
> >Scott Lurndal <scott@slp53.sl.home> wrote:
> >  
> >> If I may suggest:
> >> 
> >> https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html
> >> 
> >> '-h'  or '-?' have traditionally been used to display
> >> usage information for an utility.  
> >
> >Yep, it will definitely be '-?' (still working to finalize things).
> >
> >Many thanks for the link too btw.
> >   
> >>>Error levels returned:
> >>>
> >>>3  Option syntax errors
> >>>2  File open-read errors
> >>>1  Dates match today or matching tags
> >>>0  No dates match today or no tags match  
> >> 
> >> For commands defined by POSIX (and generally in
> >> unix), an exit status of zero indicates success.  
> >
> >Oh yeah. Have been wrestling with the potential
> >consequences of this for a good while. I think I'm
> >going leave it as is because, (only speaking for
> >myself here) the POSIX 0 good, 1 bad is terrible.  
> 
> The reason posix commands return zero for success
> is because the posix (and all other shells)
> check the exit status of a command and treat
> non-zero values as failure.
> 
> $ grep 'sigdelset' asim.cpp
> $ echo $?
> 1
> $ grep 'sigaddset' asim.cpp
>     sigaddset(&signals, SIGHUP);
>     sigaddset(&signals, SIGABRT);
>     sigaddset(&signals, SIGPIPE);
>     sigaddset(&signals, SIGUSR1);
>     sigaddset(&signals, SIGUSR2);
>     sigaddset(&sa.sa_mask, SIGHUP);
>     sigaddset(&sa.sa_mask, SIGINT);
>     sigaddset(&sa.sa_mask, SIGQUIT);
>     sigaddset(&sa.sa_mask, SIGTERM);
>     sigaddset(&sa.sa_mask, SIGXCPU);
> $ echo $?
> 0
> 
> if grep -q 'sigaddset' asim.cpp
> then
>    echo "Found it!"
> fi
> 
> >This is perhaps the only area I've ever seen where
> >other OSs, like Windows, have a superior methodology
> >on the issue. 0/1 provides next to no nuance. But
> >I'm no expert, just my experience.  
> 
> It's not 0/1, it is 0 for success and non-zero for
> failure, where the failure is indicated by the
> exit value (often restricted to 8-bits due to
> the legacy wait(2) system call, however the
> newer (for some value of new) system call waitid(2)
> supports the full 32-bit exit status).
> 
> For example, the grep command returns
>  0 - success
>  1 - No lines were matched/selected
>  >1 - An error occurred.   
> 
> Some utilities define additional exit status values.
> 
> VMS defined '1' (SS$_NORMAL) as the success return
> value from system calls and commands, which is likely
> the source of that feature in windows.
> 

Source of what feature in Windows?
Windows does not care too much about exit code, but to the level it
does care it follows the same conventions as Unix.

> I've yet to find any feature of windows that is truely
> superior (rather than just different).

How about F8 in cmd.exe shell?
Is not it non-trivially better than Crrl-r ?

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Thread

getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-01 03:48 +0000
  Re: getFirstDayOfMonth() gazelle@shell.xmission.com (Kenny McCormack) - 2024-03-01 15:39 +0000
    Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-01 17:12 +0100
      Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-01 08:28 -0800
        Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-01 17:33 +0100
          Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-01 17:37 +0100
            Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-01 10:34 -0800
              Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-01 22:03 +0100
        Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-01 17:20 +0000
    Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-01 16:47 +0000
    Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-01 17:56 +0100
    Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-01 17:18 +0000
    Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-01 20:47 +0000
      Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-01 21:38 +0000
        Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-01 21:50 +0000
          Re: getFirstDayOfMonth() Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-03 09:52 -0800
        Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-02 00:00 +0000
          Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-02 14:46 +0000
            Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-02 16:41 +0100
            Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-02 19:59 +0000
              Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-02 22:14 +0100
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 18:08 +0000
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-05 03:03 +0100
              Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-02 14:22 -0800
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-03 15:43 +0100
                Re: getFirstDayOfMonth() David Brown <david.brown@hesbynett.no> - 2024-03-03 18:45 +0100
                Re: getFirstDayOfMonth() Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-03 18:42 +0000
                Re: getFirstDayOfMonth() David Brown <david.brown@hesbynett.no> - 2024-03-04 09:49 +0100
                Re: getFirstDayOfMonth() Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-03-04 11:31 +0000
                Re: getFirstDayOfMonth() Richard Harnden <richard.nospam@gmail.invalid> - 2024-03-04 14:23 +0000
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-04 17:27 +0100
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 17:34 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-04 17:40 +0000
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 18:11 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-04 18:26 +0000
                Re: getFirstDayOfMonth() Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-04 18:30 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-04 19:01 +0000
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-05 03:09 +0100
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-05 15:06 +0000
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-05 02:56 +0100
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 02:49 +0000
                Re: getFirstDayOfMonth() Mark Bourne <nntp.mbourne@spamgourmet.com> - 2024-03-06 20:40 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-06 20:54 +0000
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 17:26 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-04 17:34 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-04 10:07 -0800
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 23:47 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-04 16:10 -0800
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 00:12 +0000
                [OT] Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-05 03:18 +0100
                Re: [OT] Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 02:55 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-05 15:03 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-05 13:25 -0800
                Re: getFirstDayOfMonth() Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2024-03-04 21:21 +0000
                Re: getFirstDayOfMonth() Michael S <already5chosen@yahoo.com> - 2024-03-05 00:37 +0200
                Re: getFirstDayOfMonth() Michael S <already5chosen@yahoo.com> - 2024-03-05 11:41 +0200
                Re: getFirstDayOfMonth() Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-14 15:57 -0700
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 23:35 +0000
                Re: getFirstDayOfMonth() Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-03-05 03:20 +0100
              Re: getFirstDayOfMonth() James Kuyper <jameskuyper@alumni.caltech.edu> - 2024-03-03 04:06 -0500
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-04 18:21 +0000
                Re: getFirstDayOfMonth() James Kuyper <jameskuyper@alumni.caltech.edu> - 2024-03-04 14:42 -0500
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-04 14:50 -0800
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 00:40 +0000
                Re: getFirstDayOfMonth() Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-05 01:27 +0000
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 02:40 +0000
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-05 15:05 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-04 17:39 -0800
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 02:43 +0000
                Re: getFirstDayOfMonth() Michael S <already5chosen@yahoo.com> - 2024-03-05 01:08 +0200
                Re: getFirstDayOfMonth() porkchop@invalid.foo (Mike Sanders) - 2024-03-05 00:18 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-04 16:33 -0800
              Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-03 15:24 +0000
                Re: getFirstDayOfMonth() Michael S <already5chosen@yahoo.com> - 2024-03-03 20:20 +0200
                Re: getFirstDayOfMonth() scott@slp53.sl.home (Scott Lurndal) - 2024-03-03 18:56 +0000
            Re: getFirstDayOfMonth() Mark Bourne <nntp.mbourne@spamgourmet.com> - 2024-03-03 13:17 +0000
    Re: getFirstDayOfMonth() jak <nospam@please.ty> - 2024-03-02 02:49 +0100
      Re: getFirstDayOfMonth() Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-03 09:47 -0800
        Re: getFirstDayOfMonth() jak <nospam@please.ty> - 2024-03-04 02:26 +0100
      Re: getFirstDayOfMonth() Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2024-03-05 14:03 +1100
        Re: getFirstDayOfMonth() bart <bc@freeuk.com> - 2024-03-05 13:19 +0000
          Re: getFirstDayOfMonth() jak <nospam@please.ty> - 2024-03-13 05:40 +0100
            Re: getFirstDayOfMonth() jak <nospam@please.ty> - 2024-03-13 06:01 +0100
              Re: getFirstDayOfMonth() Spiros Bousbouras <spibou@gmail.com> - 2024-03-13 13:38 +0000
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-13 08:47 -0700
                Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-13 09:11 -0700
              Re: getFirstDayOfMonth() Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-13 07:36 -0700
                Re: getFirstDayOfMonth() Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-14 19:56 -0700
    Re: getFirstDayOfMonth() Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-02 03:44 +0000
      Re: getFirstDayOfMonth() Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2024-03-05 14:07 +1100
      Re: getFirstDayOfMonth() gazelle@shell.xmission.com (Kenny McCormack) - 2024-03-05 13:30 +0000

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