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* mpi/logtab.h: Regenerated.
(s_logv_2): Now table of scaled integers.
(MP_LOG_SCALE): New constant.
* mpi/make-logtab.txr (scale, type): New variables.
Generate integer table with log2 values scaled by the scale
factor, rounded up.
* mpi/config.h (MP_LOGTAB): Removed. We always use the table.
* mpi/mpi.c: Unconditionally include logtab.h.
(LOG_V_2): Macro removed.
(s_mp_outlen): Rewritten using scaled integer math.
Overflow is avoided by splitting the input into a part that is
an exact multiple of the scale factor, and a remaining
part. Only the remaining part need be multiplied by a value
from the table before dividing by the scale factor.
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* mpi/mpi-config.h (MP_DEFPREC): Change from 16 to 8.
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* mpi/logtab.h, mpi/mpi-config.h mpi/mpi-types.h mpi/mpi.c,
mpi/mpi.h mpi/mplogic.c mpi/mplogic.h: Reformatted comments.
Removed useless comments. Removed superfluous blank lines and
whitespace. Added space between C keywords if, for, while,
sizeof and opening parens. Removed #if 0 blocks. Tabs to spaces.
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* mpi/mpi-config.h: Eliminate several trailing spaces.
* mpi/mpi.c: Eliminate all trailing spaces. Removed some
commented-out code, and adjusted brace placement
and indentation in one place. Also removed some spurious
blank lines.
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* mpi/mpi-config.h, mpi/mpi.h: These headers do not
require include guards. They included only once.
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Importing 1.8.6 upstream baseline, minus unwanted stuff.
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