Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/tests/refmpq.c

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+/* Reference rational routines.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU 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 test suite 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 a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+refmpq_add (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
+{
+  mpz_mul    (mpq_numref(w), mpq_numref(x), mpq_denref(y));
+  mpz_addmul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
+  mpz_mul    (mpq_denref(w), mpq_denref(x), mpq_denref(y));
+  mpq_canonicalize (w);
+}
+
+void
+refmpq_sub (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
+{
+  mpz_mul    (mpq_numref(w), mpq_numref(x), mpq_denref(y));
+  mpz_submul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
+  mpz_mul    (mpq_denref(w), mpq_denref(x), mpq_denref(y));
+  mpq_canonicalize (w);
+}