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-rw-r--r--mpi/mpi-inv.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mpi/mpi-inv.c b/mpi/mpi-inv.c
index 2cea72811..25efbd979 100644
--- a/mpi/mpi-inv.c
+++ b/mpi/mpi-inv.c
@@ -167,6 +167,7 @@ mpi_invm( MPI x, MPI a, MPI n )
u = mpi_copy(a);
v = mpi_copy(n);
+
for(k=0; !mpi_test_bit(u,0) && !mpi_test_bit(v,0); k++ ) {
mpi_rshift(u, u, 1);
mpi_rshift(v, v, 1);