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some cleanups

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This commit is contained in:
Werner Koch 1998-03-19 15:27:29 +00:00
parent 98211af4a7
commit 6b91e7762c
49 changed files with 1737 additions and 452 deletions
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19
mpi/mpi-bit.c
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@ -134,6 +134,25 @@ mpi_set_highbit( MPI a, unsigned n )
a->nlimbs = limbno+1;
}
/****************
* clear bit N of A and all bits above
*/
void
mpi_clear_highbit( MPI a, unsigned n )
{
unsigned limbno, bitno;
limbno = n / BITS_PER_MPI_LIMB;
bitno = n % BITS_PER_MPI_LIMB;
if( limbno >= a->nlimbs )
return; /* not allocated, so need to clear bits :-) */
for( ; bitno < BITS_PER_MPI_LIMB; bitno++ )
a->d[limbno] &= ~(A_LIMB_1 << bitno);
a->nlimbs = limbno+1;
}
/****************
* Clear bit N of A.
*/