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From: gwyn@brl-vld@sri-unix.UUCP
Newsgroups: net.unix-wizards
Subject: Re:  Standard I/O streams open for reading and writing
Message-ID: <4217@sri-arpa.UUCP>
Date: Mon, 15-Aug-83 07:41:46 EDT
Article-I.D.: sri-arpa.4217
Posted: Mon Aug 15 07:41:46 1983
Date-Received: Tue, 16-Aug-83 21:23:17 EDT
Lines: 7

From:      Doug Gwyn (VLD/VMB) <gwyn@brl-vld>

The real problem with "r+", "w+", "a+" modes is that one loses buffering.
The simplest fix would involve making either the getc() or putc() buffer
count proceed in the opposite direction.  (Whitesmiths does this in their
buffered i/o package.)  Unfortunately the test in the getc() or putc()
macro then is no longer a test against zero.