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Re: Bug: %option main overrides %option yywrap
From: |
John W. Millaway |
Subject: |
Re: Bug: %option main overrides %option yywrap |
Date: |
Wed, 25 Apr 2001 15:30:59 -0700 (PDT) |
> Additionally, flex.1 says the following:
>
> main directs flex to provide a default main() program
> for the scanner, which simply calls yylex(). This
> option implies noyywrap (see below).
I understand, and it makes sense. Just be aware that the inverse of this rule is
also true -- %option nomain implies yywrap -- which makes much less sense.
Of course, I only complain because it had me on one heck of a bug hunt. I had
specified %option noyywrap and %option nomain, yet the linker complained that it
couldn't find yywrap. I thought I had broken something! :)
-John
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