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Re: cannot catch returncode if assigning local variables in functions


From: Chet Ramey
Subject: Re: cannot catch returncode if assigning local variables in functions
Date: Sun, 21 Jun 2009 22:21:45 -0400
User-agent: Thunderbird 2.0.0.21 (Macintosh/20090302)

Bastian Bittorf wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i486
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i486' 
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu' 
> -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
> -DHAVE_CONFIG_H   -I.  -I../bash -I../bash/include -I../bash/lib   -g -O2 
> -Wall
> uname output: Linux bastian-laptop 2.6.28-13-generic #44-Ubuntu SMP Tue Jun 2 
> 07:57:31 UTC 2009 i686 GNU/Linux
> Machine Type: i486-pc-linux-gnu
> 
> Bash Version: 3.2
> Patch Level: 48
> Release Status: release
> 
> Description:
> 
>       when assigning local variables in functions,
>       you cannot use the returncode which is generated
>       for quick branching with '||' or '&&'

The `local' builtin returns success if the assignment is performed
correctly.  An assignment statement's return status is the status of
the last command substitution performed, or zero if none was performed.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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