Path: utzoo!attcan!uunet!cs.dal.ca!silvert
From: silvert@cs.dal.ca (Bill Silvert)
Newsgroups: comp.lang.fortran
Subject: concatenated strings
Message-ID: <1990May31.125821.5995@cs.dal.ca>
Date: 31 May 90 12:58:21 GMT
Organization: Habitat Ecology Div., Bedford Inst. of Oceanography
Lines: 18

I just tracked down a bug that seems to arise only with MS Fortran (I'm
using ver. 5.0).  When passing a complicated string involving the
concatenation of several substrings to a subroutine, all is OK the
first time through, but on the second call the program crashes.
I think the code is legal, although complex.

No problems of this sort arise on the two Unix compilers I have tried.

I solved the problem by setting a string variable to the complex string
and then passing the string variable to the subroutine.

No, the problem does not arise from assigning part of a string to itself.
I avoided that common bug.
-- 
William Silvert, Habitat Ecology Division, Bedford Inst. of Oceanography
P. O. Box 1006, Dartmouth, Nova Scotia, CANADA B2Y 4A2.  Tel. (902)426-1577
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