- Found algorithmic bug in mpi_is_prime()
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2 changed files with 3 additions and 1 deletions
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@ -1720,8 +1720,8 @@ int mpi_is_prime( mpi *X, int (*f_rng)(void *), void *p_rng )
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* W = |X| - 1
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* R = W >> lsb( W )
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*/
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s = mpi_lsb( &W );
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MPI_CHK( mpi_sub_int( &W, X, 1 ) );
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s = mpi_lsb( &W );
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MPI_CHK( mpi_copy( &R, &W ) );
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MPI_CHK( mpi_shift_r( &R, s ) );
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