Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpf/set.c

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+/* mpf_set -- Assign a float from another float.
+
+Copyright 1993-1995, 2001, 2004 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-impl.h"
+
+void
+mpf_set (mpf_ptr r, mpf_srcptr u)
+{
+  mp_ptr rp, up;
+  mp_size_t size, asize;
+  mp_size_t prec;
+
+  prec = r->_mp_prec + 1;		/* lie not to lose precision in assignment */
+  size = u->_mp_size;
+  asize = ABS (size);
+  rp = r->_mp_d;
+  up = u->_mp_d;
+
+  if (asize > prec)
+    {
+      up += asize - prec;
+      asize = prec;
+    }
+
+  r->_mp_exp = u->_mp_exp;
+  r->_mp_size = size >= 0 ? asize : -asize;
+  MPN_COPY_INCR (rp, up, asize);
+}