X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gmp%2Ftests%2Frand%2Fzdiv_round.c;fp=gmp%2Ftests%2Frand%2Fzdiv_round.c;h=362d19c11fa492051c52cbbc0b0c282f03dbe829;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git

diff --git a/gmp/tests/rand/zdiv_round.c b/gmp/tests/rand/zdiv_round.c
new file mode 100644
index 00000000..362d19c1
--- /dev/null
+++ b/gmp/tests/rand/zdiv_round.c
@@ -0,0 +1,44 @@
+/* zdiv_round() -- divide integers, round to nearest */
+
+/*
+Copyright 1999 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
+
+#include "gmp.h"
+
+void
+zdiv_round (mpz_t rop, mpz_t n, mpz_t d)
+{
+  mpf_t f_n, f_d;
+
+  mpf_init (f_n);
+  mpf_init (f_d);
+
+  mpf_set_z (f_d, d);
+  mpf_set_z (f_n, n);
+
+  mpf_div (f_n, f_n, f_d);
+  mpf_set_d (f_d, .5);
+  if (mpf_sgn (f_n) < 0)
+    mpf_neg (f_d, f_d);
+  mpf_add (f_n, f_n, f_d);
+  mpz_set_f (rop, f_n);
+
+  mpf_clear (f_n);
+  mpf_clear (f_d);
+  return;
+}