fixed bug in urandomb.c reported by Dominic Chen

(https://sympa.inria.fr/sympa/arc/mpfr/2017-01/msg00011.html)
and replaced MPN_COPY_INCR/MPN_COPY_DECR by mpn_copyi/mpn_copyd


git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@11193 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sum.c b/src/sum.c
index e7cfa0028..95aa9553b 100644
--- a/src/sum.c
+++ b/src/sum.c
@@ -473,7 +473,7 @@ sum_raw (mp_limb_t *wp, mp_size_t ws, mpfr_prec_t wq, mpfr_ptr *const x,
                 if (MPFR_LIKELY (shiftc != 0))
                   mpn_lshift (wp + shifts, wp, ws - shifts, shiftc);
                 else
-                  MPN_COPY_DECR (wp + shifts, wp, ws - shifts);
+                  mpn_copyd (wp + shifts, wp, ws - shifts);
                 MPN_ZERO (wp, shifts);
                 /* Compute minexp = minexp - shiftq safely. */
                 SAFE_SUB (minexp, minexp, shiftq);