Add gmp, mpc and mpfr sourcesbaserock/pedroalvarez/4.9.1

1 files changed, 62 insertions, 0 deletions

diff --git a/gmp/mpf/neg.c b/gmp/mpf/neg.c
new file mode 100644
index 0000000000..553018f306
--- /dev/null
+++ b/gmp/mpf/neg.c
@@ -0,0 +1,62 @@
+/* mpf_neg -- Negate a float.
+
+Copyright 1993-1995, 2001 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"
+
+void
+mpf_neg (mpf_ptr r, mpf_srcptr u)
+{
+  mp_size_t size;
+
+  size = -u->_mp_size;
+  if (r != u)
+    {
+      mp_size_t prec;
+      mp_size_t asize;
+      mp_ptr rp, up;
+
+      prec = r->_mp_prec + 1;	/* lie not to lose precision in assignment */
+      asize = ABS (size);
+      rp = r->_mp_d;
+      up = u->_mp_d;
+
+      if (asize > prec)
+	{
+	  up += asize - prec;
+	  asize = prec;
+	}
+
+      MPN_COPY (rp, up, asize);
+      r->_mp_exp = u->_mp_exp;
+      size = size >= 0 ? asize : -asize;
+    }
+  r->_mp_size = size;
+}