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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/boost/libs/spirit/test/qi/optional.cpp
parentInitial commit. (diff)
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Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/spirit/test/qi/optional.cpp')
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1 files changed, 111 insertions, 0 deletions
diff --git a/src/boost/libs/spirit/test/qi/optional.cpp b/src/boost/libs/spirit/test/qi/optional.cpp
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+++ b/src/boost/libs/spirit/test/qi/optional.cpp
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+/*=============================================================================
+ Copyright (c) 2001-2011 Joel de Guzman
+
+ 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/detail/lightweight_test.hpp>
+#include <boost/spirit/include/qi_char.hpp>
+#include <boost/spirit/include/qi_numeric.hpp>
+#include <boost/spirit/include/qi_operator.hpp>
+#include <boost/spirit/include/qi_action.hpp>
+#include <boost/spirit/include/qi_directive.hpp>
+#include <boost/spirit/include/support_argument.hpp>
+#include <boost/spirit/include/phoenix_core.hpp>
+#include <boost/spirit/include/phoenix_operator.hpp>
+#include <boost/fusion/adapted/struct.hpp>
+
+#include <iostream>
+#include "test.hpp"
+
+struct adata
+{
+ int a;
+ boost::optional<int> b;
+};
+
+BOOST_FUSION_ADAPT_STRUCT(
+ adata,
+ (int, a)
+ (boost::optional<int>, b)
+)
+
+struct test_attribute_type
+{
+ template <typename Attribute, typename Context>
+ void operator()(Attribute&, Context&, bool&) const
+ {
+ BOOST_TEST(typeid(Attribute).name() == typeid(boost::optional<int>).name());
+ }
+};
+
+int
+main()
+{
+ using spirit_test::test;
+ using spirit_test::test_attr;
+
+ using boost::spirit::qi::_1;
+ using boost::spirit::qi::int_;
+ using boost::spirit::qi::omit;
+ using boost::spirit::ascii::char_;
+
+ {
+ BOOST_TEST((test("1234", -int_)));
+ BOOST_TEST((test("abcd", -int_, false)));
+ }
+
+ { // test propagation of unused
+ using boost::fusion::at_c;
+ using boost::fusion::vector;
+
+ vector<char, char> v;
+ BOOST_TEST((test_attr("a1234c", char_ >> -omit[int_] >> char_, v)));
+ BOOST_TEST((at_c<0>(v) == 'a'));
+ BOOST_TEST((at_c<1>(v) == 'c'));
+
+ v = boost::fusion::vector<char, char>();
+ BOOST_TEST((test_attr("a1234c", char_ >> omit[-int_] >> char_, v)));
+ BOOST_TEST((at_c<0>(v) == 'a'));
+ BOOST_TEST((at_c<1>(v) == 'c'));
+
+ char ch;
+ BOOST_TEST((test_attr(",c", -(',' >> char_), ch)));
+ BOOST_TEST((ch == 'c'));
+ }
+
+ { // test action
+ boost::optional<int> n = 0;
+ BOOST_TEST((test_attr("1234", (-int_)[test_attribute_type()], n)));
+ BOOST_TEST((n.get() == 1234));
+ }
+
+ {
+ std::string s;
+ BOOST_TEST((test_attr("abc", char_ >> -(char_ >> char_), s)));
+ BOOST_TEST(s == "abc");
+ }
+
+ {
+ namespace phx = boost::phoenix;
+
+ boost::optional<int> n = 0;
+ BOOST_TEST((test("1234", (-int_)[phx::ref(n) = _1])));
+ BOOST_TEST(n.get() == 1234);
+
+ n = boost::optional<int>();
+ BOOST_TEST((test("abcd", (-int_)[phx::ref(n) = _1], false)));
+ BOOST_TEST(!n);
+ }
+
+ {
+ std::vector<adata> v;
+ BOOST_TEST((test_attr("a 1 2 a 2", *("a" >> int_ >> -int_), v
+ , char_(' '))));
+ BOOST_TEST(2 == v.size() &&
+ 1 == v[0].a && v[0].b && 2 == *(v[0].b) &&
+ 2 == v[1].a && !v[1].b);
+ }
+
+ return boost::report_errors();
+}