Add libgmp 6.2.0 to third_party
Don't build it yet. That will come in the next review.
Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/cxx/osmpf.cc b/third_party/gmp/cxx/osmpf.cc
new file mode 100644
index 0000000..fd875db
--- /dev/null
+++ b/third_party/gmp/cxx/osmpf.cc
@@ -0,0 +1,70 @@
+/* operator<< -- mpf formatted output to an ostream.
+
+Copyright 2001, 2002 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 <clocale>
+#include <iostream>
+#include <stdarg.h> /* for va_list and hence doprnt_funs_t */
+#include <string.h>
+
+#include "gmp-impl.h"
+
+using namespace std;
+
+
+/* The gmp_asprintf support routines never give an error, so
+ __gmp_doprnt_mpf shouldn't fail and it's return can just be checked with
+ an ASSERT. */
+
+ostream&
+operator<< (ostream &o, mpf_srcptr f)
+{
+ struct doprnt_params_t param;
+ struct gmp_asprintf_t d;
+ char *result;
+ int ret;
+
+ __gmp_doprnt_params_from_ios (¶m, o);
+
+#if HAVE_STD__LOCALE
+ char point[2];
+ point[0] = use_facet< numpunct<char> >(o.getloc()).decimal_point();
+ point[1] = '\0';
+#else
+ const char *point = GMP_DECIMAL_POINT;
+#endif
+
+ GMP_ASPRINTF_T_INIT (d, &result);
+ ret = __gmp_doprnt_mpf (&__gmp_asprintf_funs_noformat, &d, ¶m, point, f);
+ ASSERT (ret != -1);
+ __gmp_asprintf_final (&d);
+
+ gmp_allocated_string t (result);
+ return o.write (t.str, t.len);
+}