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From: ciemo@bananapc.wpd.sgi.com (Dave Ciemiewicz)
Newsgroups: comp.sys.mips
Subject: Re: C limits.
Message-ID: <7040@odin.corp.sgi.com>
Date: 30 Apr 90 18:21:01 GMT
References: <38362@mips.mips.COM> <20243@shamash.cdc.com>
Sender: news@odin.corp.sgi.com
Reply-To: ciemo@bananapc.wpd.sgi.com (Dave Ciemiewicz)
Distribution: usa
Organization: Silicon Graphics, Inc.
Lines: 36

In article <38362@mips.mips.COM>, lai@mips.COM (David Lai) writes:
> In article <20243@shamash.cdc.com> pwh@hare.udev.cdc.com (pw haynes
x-2604) writes:
> >Request data on the following C and system limits.
> >
> >4) Maximum length of file name (in characters)?
> 
> From the ANSI C standard (2.2.4.1):
> 
> 1) 509
> 2) 511 external, 127 in block scope
> 3) 32767 bytes in an object (doesn't specify initialized or not)
> 
> But I believe our C implementation exceeds these minimum bounds.  To
guarantee
> full portablilty, the above bounds should not be exceeded.  There are flags
> on the command line that can adjust the maximum limits of some parameters.
> 
> 4) from dirent.h: #define MAXNAMLEN       255 /* maximum filename length */
> 
> In the future, we will support the FILENAME_MAX macro in stdio.h, the initial
> value will probably be the same (255).
> -- 
>         "What is a DJ if he can't scratch?"  - Uncle Jamms Army
>      David Lai (lai@mips.com || {ames,prls,pyramid,decwrl}!mips!lai)

The System V.2 (and later) include file /usr/include/limits.h contains the
appropriate maximums:

	NAME_MAX	255
	PATH_MAX	1024

Well this is at least true on the Silicon Graphics IRIS 4D and I believe it
may also be true for MIPS.

					--- Ciemo