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NNTP-Posting-Date: Wed, 12 Oct 2005 20:58:53 -0500
From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Newbie Question: using Text_IO.Open() to read from standard input
References: <1129164557.586640.154480@g14g2000cwa.googlegroups.com>
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Date: Wed, 12 Oct 2005 20:58:54 -0500
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Date: 2005-10-12T20:58:54-05:00
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> I need to open a file that is passed to my ada executable as standard
> input, in the following fashion:
>
> ./myprogram < inputfile.txt
>
> My question is: How can i get the Open() function to open a file from
> standard input so that I can bypass using a static file name?
  Standard Input is already Open when your program starts, so you
don't need to open it.
   ARM A.10(4):  "For all Get and Put procedures that operate on text
files, and for many other subprograms, there are forms with and without a
file parameter.  ...  If no file is specified, a default input file or a
default output file is used."  That's simplest, but you might want instead
to use things from ARM 10.3 "Default Input, Output, and Error Files".