Re: "scratch" file bug in g77/egcs1.1b

[Mako Sasaki <sasaki at tyo dot sci dot jri dot co dot jp>]

Thanks for reply.

From: Toon Moene <toon@moene.indiv.nluug.nl>
Subject: "scratch" file bug in g77/egcs1.1b
Date: Thu, 24 Sep 98 21:15:39 +0200

> I can't find anything in the Standard that suggests REWIND N will  
> write an `endfile' record to unit N; in fact, that is what the  
> ENDFILE N statement is for.
> 
> I do not have an explanation for the different behaviour between  
> egcs-1.0.3a and egcs-1.1b.
> 
> Hope this helps,
> Toon.

The ISO/IEC 1539 (AKA "Fortran90 Standard") requires writing "endfile record" for REWIND operation in "9.1.3 Endfile record". (I'm looking a japanese translation - JIS X3001. I hope the section number is identical...).  

A command "strings a.out" shows that older libf2c uses "tmpnam" and libf2c/egcs1.1b uses "tmpfile" in Linux. It looks that "tmpfile" in Linux2.0 does not create any actual file under "/tmp". This may explain the difference.

I've surveyed the libI77 sources, but complicated ifdef's prevent me from understanding the truth currently ...

Thanks

###############################################################
# Makoto Sasaki
#   The Japan Research Inst. Ltd.
#   E-Mail: sasaki@tyo.sci.jri.co.jp