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From: delaney@xn.ll.mit.edu (John R. Delaney)
Newsgroups: comp.lang.fortran
Subject: INDEX() and "_" in FORTRAN 77 under SUN 4.1 OS
Message-ID: <1991May31.141830.10778@xn.ll.mit.edu>
Date: 31 May 91 14:18:30 GMT
Sender: usenet@xn.ll.mit.edu
Organization: MIT Lincoln Laboratory
Lines: 12

A colleague has run into an apparent inconsistency in the way the
underscore character is handled in the FORTRAN 77 which came with SUN's 4.1
OS. That character is acceptable in variable names and can be printed out
if in a string. But the INDEX function acts as if it wasn't there in the
same strings.

Is this a well-know problem or are we experiencing some sort of local
quirk?

Thanks in advance,

John