Clinton,
I was suspecting this. An easier fix might be to document this in the book or
an errata document.
Thanks,
David
----- Original Message ----
From: Clinton Jeffery <[EMAIL PROTECTED]>
To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
Sent: Sunday, April 15, 2007 4:03:18 AM
Subject: Re: [Unicon-group] problem with system() under windows XP
system() does whatever the underlying C compiler semantics do. Under UNIX it
does launch a shell in which to execute
the command you give it. Under DOS and Windows it generally doesn't do that,
but you can generally do it yourself via
system("command /C dir") or maybe system("cmd /C dir"). Bottom line: there is
no dir.exe, it is an "internal command"
within command.com or cmd.exe but those executables usually have a way to
invoke a single command (/C) and by the
way, we don't want to change Unicon system() to always invoke an Windows shell
in order to do system(), but
I can almost see special-casing the internal commands so that the cmd /C stuff
is automatically prepended.
Clint
On 4/14/07, [EMAIL PROTECTED] <
[EMAIL PROTECTED]> wrote:David Gamey <
[EMAIL PROTECTED]> skribis:
> If I call system with something like "dir ... /s/b" or even just "dir" I get
> a return of -1. Calling it on a batch file containing the same command works
> just fine.
Oh, wait, system should be running a shell, no? I haven't used the
windows or msdos version in years, so I don't know.
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