summaryrefslogtreecommitdiff
path: root/Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c')
-rw-r--r--Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c b/Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c
new file mode 100644
index 00000000000..d9cb38c3232
--- /dev/null
+++ b/Build/source/libs/gmp/gmp-6.0.0/mpz/tdiv_r.c
@@ -0,0 +1,98 @@
+/* mpz_tdiv_r(rem, dividend, divisor) -- Set REM to DIVIDEND mod DIVISOR.
+
+Copyright 1991, 1993, 1994, 2000, 2001, 2005, 2012 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 either:
+
+ * 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.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "longlong.h"
+
+void
+mpz_tdiv_r (mpz_ptr rem, mpz_srcptr num, mpz_srcptr den)
+{
+ mp_size_t ql;
+ mp_size_t ns, ds, nl, dl;
+ mp_ptr np, dp, qp, rp;
+ TMP_DECL;
+
+ ns = SIZ (num);
+ ds = SIZ (den);
+ nl = ABS (ns);
+ dl = ABS (ds);
+ ql = nl - dl + 1;
+
+ if (UNLIKELY (dl == 0))
+ DIVIDE_BY_ZERO;
+
+ rp = MPZ_REALLOC (rem, dl);
+
+ if (ql <= 0)
+ {
+ if (num != rem)
+ {
+ np = PTR (num);
+ MPN_COPY (rp, np, nl);
+ SIZ (rem) = SIZ (num);
+ }
+ return;
+ }
+
+ TMP_MARK;
+ qp = TMP_ALLOC_LIMBS (ql);
+ np = PTR (num);
+ dp = PTR (den);
+
+ /* FIXME: We should think about how to handle the temporary allocation.
+ Perhaps mpn_tdiv_qr should handle it, since it anyway often needs to
+ allocate temp space. */
+
+ /* Copy denominator to temporary space if it overlaps with the remainder. */
+ if (dp == rp)
+ {
+ mp_ptr tp;
+ tp = TMP_ALLOC_LIMBS (dl);
+ MPN_COPY (tp, dp, dl);
+ dp = tp;
+ }
+ /* Copy numerator to temporary space if it overlaps with the remainder. */
+ if (np == rp)
+ {
+ mp_ptr tp;
+ tp = TMP_ALLOC_LIMBS (nl);
+ MPN_COPY (tp, np, nl);
+ np = tp;
+ }
+
+ mpn_tdiv_qr (qp, rp, 0L, np, nl, dp, dl);
+
+ MPN_NORMALIZE (rp, dl);
+
+ SIZ (rem) = ns >= 0 ? dl : -dl;
+ TMP_FREE;
+}