[Gmp-commit] /var/hg/gmp-proj/mini-gmp: mpz_gcd_ui: return value in g iif != ...

[mercurial at gmplib.org]

details:   /var/hg/gmp-proj/mini-gmp/rev/e6a42a9149a0
changeset: 65:e6a42a9149a0
user:      Marco Bodrato <bodrato at mail.dm.unipi.it>
date:      Thu Jan 12 08:27:28 2012 +0100
description:
mpz_gcd_ui: return value in g iif != NULL.

diffstat:

 mini-gmp.c |  15 ++++++++-------
 1 files changed, 8 insertions(+), 7 deletions(-)

diffs (36 lines):

diff -r 88847f9b41b6 -r e6a42a9149a0 mini-gmp.c
--- a/mini-gmp.c	Wed Jan 11 23:29:06 2012 +0100
+++ b/mini-gmp.c	Thu Jan 12 08:27:28 2012 +0100
@@ -44,7 +44,6 @@
      mpz_lcm_ui
      mpz_scan0
      mpz_scan1.
-     mpz_ui_sub     
 */
 
 #include <assert.h>
@@ -2381,16 +2380,18 @@
     {
       if (g)
 	mpz_abs (g, u);
-      return 0;
     }
-  un = GMP_ABS (u->_mp_size);
-  if (un == 0)
+  else
     {
-      mpz_set_ui (g, v);
-      return v;
+      un = GMP_ABS (u->_mp_size);
+      if (un != 0)
+	v = mpn_gcd_11 (mpn_div_qr_1 (NULL, u->_mp_d, un, v), v);
+
+      if (g)
+	mpz_set_ui (g, v);
     }
 
-  return mpn_gcd_11 (mpn_div_qr_1 (NULL, u->_mp_d, un, v), v);
+  return v;
 }
 
 static mp_bitcnt_t