1// Copyright (c) 2013 Alex Korobka
2//
3// Distributed under the Boost Software License, Version 1.0. (See accompanying
4// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6// This test checks whether #8970 was fixed
7
8#include <iostream>
9#include <boost/spirit/include/karma.hpp>
10
11#include "test.hpp"
12
13using namespace spirit_test;
14using namespace boost::spirit;
15
16template <typename Num>
17struct signed_policy : karma::real_policies<Num>
18{
19 static bool force_sign(Num /*n*/) { return true; }
20};
21
22int main()
23{
24 karma::real_generator<double, signed_policy<double> > const force_sign_double =
25 karma::real_generator<double, signed_policy<double> >();
26
27 BOOST_TEST(test("-0.123", force_sign_double, -0.123));
28 BOOST_TEST(test("-1.123", force_sign_double, -1.123));
29 BOOST_TEST(test("0.0", force_sign_double, 0));
30 BOOST_TEST(test("+0.123", force_sign_double, 0.123));
31 BOOST_TEST(test("+1.123", force_sign_double, 1.123));
32
33 using karma::double_;
34 BOOST_TEST(test("-0.123", double_, -0.123));
35 BOOST_TEST(test("-1.123", double_, -1.123));
36 BOOST_TEST(test("0.0", double_, 0));
37 BOOST_TEST(test("0.123", double_, 0.123));
38 BOOST_TEST(test("1.123", double_, 1.123));
39
40 return boost::report_errors();
41}
42

source code of boost/libs/spirit/test/karma/regression_real_policy_sign.cpp