sending error_id through std::error_code

test/handle_all_error_code_test.cpp

@@ -0,0 +1,70 @@
+// Copyright (c) 2018 Emil Dotchevski
+// Copyright (c) 2018 Second Spectrum, Inc.
+
+// 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/leaf/error_code.hpp>
+#include <boost/leaf/handle.hpp>
+#include "boost/core/lightweight_test.hpp"
+#include <cstring>
+
+namespace leaf = boost::leaf;
+
+template <int> struct info { int value; };
+
+int main()
+{
+	{
+		int r = leaf::handle_all(
+			[ ]
+			{
+				return std::error_code();
+			},
+			[ ]
+			{
+				return ENOENT;
+			} );
+		BOOST_TEST(!r);
+	}
+	{
+		int r = leaf::handle_all(
+			[&]
+			{
+				std::error_code ec = leaf::new_error(info<1>{1}).to_error_code();
+				BOOST_TEST(ec);
+				BOOST_TEST(ec.message()=="LEAF error, use with leaf::handle_some or leaf::handle_all.");
+				BOOST_TEST(!std::strcmp(ec.category().name(),"LEAF error, use with leaf::handle_some or leaf::handle_all."));
+				return ec;
+			},
+			[ ]( info<1> const & x )
+			{
+				BOOST_TEST(x.value==1);
+				return 1;
+			},
+			[ ]
+			{
+				return 2;
+			} );
+		BOOST_TEST(r==1);
+	}
+	{
+		int r = leaf::handle_all(
+			[&]
+			{
+				return leaf::new_error(info<2>{2},std::error_code(ENOENT,std::system_category())).to_error_code();
+			},
+			[ ]( info<2> const & x, std::error_code const & ec )
+			{
+				BOOST_TEST(x.value==2);
+				BOOST_TEST(ec==std::error_code(ENOENT,std::system_category()));
+				return 1;
+			},
+			[ ]
+			{
+				return 2;
+			} );
+		BOOST_TEST(r==1);
+	}
+	return boost::report_errors();
+}