import quincy beta 17.1.0

[ceph.git] / ceph / src / boost / libs / multiprecision / test / git_issue_265.cpp

diff --git a/ceph/src/boost/libs/multiprecision/test/git_issue_265.cpp b/ceph/src/boost/libs/multiprecision/test/git_issue_265.cpp
new file mode 100644 (file)
index 0000000..5f6b97c
--- /dev/null
+++ b/ceph/src/boost/libs/multiprecision/test/git_issue_265.cpp
@@ -0,0 +1,27 @@
+///////////////////////////////////////////////////////////////////////////////
+//  Copyright 2020 John Maddock. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/multiprecision/mpfr.hpp>
+#include <boost/math/special_functions/next.hpp>
+#include "test.hpp"
+
+using namespace boost::multiprecision;
+
+int main()
+{
+   mpfr_float_50 half = 0.5;
+   mpfr_float_50 under_half = boost::math::float_prior(half);
+   BOOST_CHECK_NE(half, under_half);
+   int e1, e2;
+   mpfr_float_50 norm1, norm2;
+   norm1 = frexp(half, &e1);
+   norm2 = frexp(under_half, &e2);
+   BOOST_CHECK_EQUAL(norm1, half);
+   BOOST_CHECK_EQUAL(e1, 0);
+   BOOST_CHECK_GT(1, norm2);
+   BOOST_CHECK_LE(0.5, norm2);
+   BOOST_CHECK_EQUAL(e2, -1);
+   return boost::report_errors();
+}