Add tests for throw_line

test/Jamfile.v2

@@ -16,6 +16,7 @@ compile-fail throw_exception_fail.cpp ;
 
 run throw_exception_test2.cpp ;
 run throw_exception_test3.cpp ;
+run throw_exception_test4.cpp ;
 
 lib lib1_throw : lib1_throw.cpp : <define>LIB1_SOURCE=1 <link>shared:<define>LIB1_DYN_LINK=1 : : <link>shared:<define>LIB1_DYN_LINK=1 ;
 lib lib2_throw : lib2_throw.cpp : <define>LIB2_SOURCE=1 <link>shared:<define>LIB2_DYN_LINK=1 : : <link>shared:<define>LIB2_DYN_LINK=1 ;

test/throw_exception_test4.cpp

@@ -0,0 +1,47 @@
+// Copyright 2018 Peter Dimov
+//
+// 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/throw_exception.hpp>
+#include <boost/exception/get_error_info.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+class my_exception: public std::exception
+{
+};
+
+class my_exception2: public std::exception, public boost::exception
+{
+};
+
+int main()
+{
+    try
+    {
+        BOOST_THROW_EXCEPTION( my_exception() );
+    }
+    catch( boost::exception const & x )
+    {
+        int const * line = boost::get_error_info<boost::throw_line>( x );
+
+        BOOST_TEST( line != 0 );
+        BOOST_TEST_EQ( *line, 24 );
+    }
+
+    try
+    {
+        BOOST_THROW_EXCEPTION( my_exception2() );
+    }
+    catch( boost::exception const & x )
+    {
+        int const * line = boost::get_error_info<boost::throw_line>( x );
+
+        BOOST_TEST( line != 0 );
+        BOOST_TEST_EQ( *line, 36 );
+    }
+
+    return boost::report_errors();
+}

test/throw_from_library_test.cpp

@@ -10,6 +10,7 @@
 #include "lib3_throw.hpp"
 #include <boost/exception/exception.hpp>
 #include <boost/exception_ptr.hpp>
+#include <boost/exception/get_error_info.hpp>
 #include <boost/core/lightweight_test.hpp>
 
 void test_catch_by_type()
@@ -52,11 +53,27 @@ void test_exception_ptr()
     }
 }
 
+void test_throw_line()
+{
+    try
+    {
+        lib3::f();
+    }
+    catch( boost::exception const & x )
+    {
+        int const * line = boost::get_error_info<boost::throw_line>( x );
+
+        BOOST_TEST( line != 0 );
+        BOOST_TEST_EQ( *line, 13 );
+    }
+}
+
 int main()
 {
     test_catch_by_type();
     test_catch_by_exception();
     test_exception_ptr();
+    test_throw_line();
 
     return boost::report_errors();
 }