[Groff] Floating displays in -mm

[Anton Shepelev]

And  here's another problem: floating displays in mm
are output from within a  very  strange  environment
called  \%ds*fev,  which  is  nowhere defined, which
means it has the default parameters,  including  the
line length of 16 cm.  This results, for example, in
incorrect horizontal alignment of  floats  when  the
actual line length differs from the default one.

Does  anybody  know  why this environment is used in
the address@hidden macro?  Maybe it should be  com-
pletely inherited from the current environment?

The current line length in address@hidden is stored
in \n[df*old-ll] but is  not  used  anywhere  within
this  macro or any macro called therefrom and is de-
stroyed at the end.  This seems to be an error (val-
ue  assinged but never used) because the current in-
dent is stored in a similar way but is inherited  in
the new environment via .in .

The problem is demonstrated in the attached example.
Use it with -Tps -P-p -PA5.

Either it is not an error or nobody is using  floats
in -mm...

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mm-df-bug.roff
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