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To: zsh-users@math.gatech.edu
Subject: Positional Parameter "$@"
Organization: Miyazaki Laboratory, Graduate School of Information Sciences, Tohoku University, Sendai 980-77, Japan
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Date: Fri, 30 Jun 1995 05:03:44 +0900
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From: Yoshinari KANAYA/=?ISO-2022-JP?B?GyRCNmJDKzVIQC4bKEI=?= <kanaya@yumimi.dais.is.tohoku.ac.jp>
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Dear ZSH maintainers,

    $ echo $ZSH_VERSION
    2.6-beta8
    $ uname -a
    SunOS chacha 5.3 Generic_101318-70 sun4m sparc

(1) $ cat foo
    #!/bin/zsh
    echo ${1+"$@"}

    $ ./foo a b c
    ./foo: ambiguous: a [2]

(2) $ cat bar
    #!/bin/ksh
    echo ${1+"$@"}

    $ ./bar a b c
    a b c

    (Same even if ksh is bash)

     Why the result is different? By the way, the following is OK.

(3) $ cat baz
    #!/bin/zsh
    echo ${1+"$*"}

    $ ./baz a b c
    a b c

     I read zshparam manual page, specially "Positional Parameters"
section. But I couldn't also explain the difference between (1) and (3). 
Will anybody point out my stupidity?

                                                           Sincerely,
--
Yoshinari KANAYA <kanaya@yumimi.dais.is.tohoku.ac.jp>
Miyazaki Laboratory, Graduate School of Information Sciences,
Tohoku University, Sendai 980-77, Japan