[XeTeX] Getting vinculum in fractions with Asana Math and unicode-math when compiled with xelatex

[Paul Vojta]

On Sat, Jan 01, 2011 at 10:48:46PM +0100, Ulrik Vieth wrote:
> On 12/27/2010 08:37 AM, R (Chandra) Chandrasekhar wrote:
> >
> > A xetex bug report has been filed at:
> >
> > https://sourceforge.net/tracker/?func=detail&aid=3145819&group_id=194926&atid=951385
> 
> I have verified the issue on my machine, where I have both a 32-bit
> and 64-bit binary of xetex running on a 64-bit Linux system.
> 
> With the same texmf tree (same versions of macros and fonts), I get 
> correct results on 32bit and incorrect results on 64bit binaries.

If I uncomment line 196 in xetexdir/XeTeXOTMath.cpp, then it prints out

	math_ex(25, 8) returns 0.708

on a 32-bit system, and

	math_ex(25, 8) returns 0.000

on a 64-bit system.

--Paul Vojta, vojta at math.berkeley.edu