[metapost] Strange error, bug ?

[Karel]

Pétiard François napsal(a):
> Hello!
> 
> My computer'OS is Windows Vista Ultimate.
> I work with MiKTeX 2.9 (MetaPost 1.504)
> 
> Here's my mp file:
> 
> prologues:=3;
> outputtemplate:="%j.mps";
> beginfig(1);
> label(btex $-\infty$ etex,(0,0));
> label(btex $\null-\infty$ etex,(50,0));
> label(btex $-\,\infty$ etex,(100,0));
> endfig;
> end;
> 

It's clearly bug in mpost 1.504 as mpost 1.212 gives correct 
result (see attachment). As mikTeX has own binaries, try to find 
older version of mpost in mikteX 2.8 (I suppose that it could work 
also with mikTeX 2.9).

Good luck!
Karel Horak
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