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Date: Sun, 10 Nov 1996 01:20:02 -0800 (PST)
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From: Bruce Evans <bde@zeta.org.au>
Subject: Re: bin/1988: FOPEN_MAX != _POSIX_STREAM_MAX
Reply-To: Bruce Evans <bde@zeta.org.au>
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The following reply was made to PR bin/1988; it has been noted by GNATS.

From: Bruce Evans <bde@zeta.org.au>
To: FreeBSD-gnats-submit@freebsd.org, jehamby@lightside.com
Cc:  Subject: Re: bin/1988: FOPEN_MAX != _POSIX_STREAM_MAX
Date: Sun, 10 Nov 1996 20:11:31 +1100

 >As the description in stdio.h indicates, FOPEN_MAX should be equal to
 >_POSIX_STREAM_MAX in limits.h.  Instead, FOPEN_MAX=20 and _POSIX_STREAM_MAX=8.
 
 This is a bug in the description in stdio.h.  FOPEN_MAX shall be >=
 _POSIX_STREAM_MAX.
 
 >The correct value, according to sysconf(_SC_STREAM_MAX), is 20, so
 >_POSIX_STREAM_MAX is wrong.
 
 Both FOPEN_MAX and sysconf(_SC_STREAM_MAX) give the minumum number of
 streams that can be opened by the current process on the current system.
 _POSIX_STREAM_MAX gives the minimum number of streams that can be opened
 by a process on any POSIX system.  These numbers are only related by >=.
 
 >>Fix:
 >	
 >Patch /usr/include/limits.h as follows:
 >50c50
 >< #define       _POSIX_STREAM_MAX       8
 >---
 >> #define       _POSIX_STREAM_MAX       20
 
 This would break _POSIX_STREAM_MAX, since POSIX specifies that it shall
 be 8.
 
 Bruce