Minor warning fix patch for tools/re2c/dfa.c

Peter Kasting pkasting at google.com
Fri Nov 14 13:56:07 PST 2014

Hi YASM devs,

I'm a Chromium developer trying to enable more MSVC warnings in our build.
Along the way I ran into a minor warning of "possible value truncation" in
our local copy of YASM.  Attached is a patch that silences the warning via
an explicit cast.  (This assumes the existing code is functionally correct,
which I'm not qualified to judge.)  If someone could merge this, or direct
me in any steps I should take to get this merged, I'd greatly appreciate it.

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