drop c++03 support

test/Jamfile.v2

@@ -8,11 +8,11 @@
 import testing ;
 import feature ;
 
+import ../../config/checks/config : requires ;
+
 project
     : requirements
-        <toolset>gcc-4.7:<cxxflags>-ftrapv
-        <toolset>gcc-4.6:<cxxflags>-ftrapv
-        <toolset>clang:<cxxflags>-ftrapv
+        [ requires cxx11 ]
         # default to all warnings on:
         <warnings>all
         # set warnings as errors for those compilers we know we get warning free:

test/implicit_cast.cpp

@@ -35,7 +35,7 @@ int main()
     (void)z;
 
 
-    BOOST_CONSTEXPR long value = boost::implicit_cast<long>(42);
+    constexpr long value = boost::implicit_cast<long>(42);
     BOOST_TEST(value == 42L);
 
     return boost::report_errors();

test/polymorphic_cast_test.cpp

@@ -6,6 +6,7 @@
 // Copyright 1999 Dave Abrahams
 // Copyright 2014 Peter Dimov
 // Copyright 2014 Boris Rasin, Antony Polukhin
+// Copyright 2023 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0.
 //
@@ -237,8 +238,6 @@ static void test_polymorphic_pointer_downcast_intrusive()
     }
 }
 
-#ifndef BOOST_NO_CXX11_SMART_PTR
-
 static void test_polymorphic_pointer_downcast_std_shared()
 {
     std::shared_ptr<Base> base (new Derived);
@@ -253,8 +252,6 @@ static void test_polymorphic_pointer_downcast_std_shared()
     }
 }
 
-#endif
-
 static void test_polymorphic_cast_fail()
 {
     Base * base = new Base;
@@ -272,9 +269,7 @@ static void test_polymorphic_pointer_cast_fail()
 
     BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( boost::shared_ptr<Base>(new Base) ), std::bad_cast );
 
-#ifndef BOOST_NO_CXX11_SMART_PTR
     BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( std::shared_ptr<Base>(new Base) ), std::bad_cast );
-#endif
 
     BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( boost::intrusive_ptr<Base>(new Base) ), std::bad_cast );
 }
@@ -337,7 +332,6 @@ static void test_polymorphic_pointer_downcast_boost_shared_fail()
     expect_assertion = false;
 }
 
-#ifndef BOOST_NO_CXX11_SMART_PTR
 
 static void test_polymorphic_pointer_downcast_std_shared_fail()
 {
@@ -352,7 +346,6 @@ static void test_polymorphic_pointer_downcast_std_shared_fail()
     expect_assertion = false;
 }
 
-#endif
 
 static void test_polymorphic_pointer_downcast_intrusive_fail()
 {
@@ -382,10 +375,9 @@ int main()
     test_polymorphic_pointer_downcast_boost_shared_fail();
     test_polymorphic_pointer_downcast_intrusive_fail();
 
-#ifndef BOOST_NO_CXX11_SMART_PTR
     test_polymorphic_pointer_downcast_std_shared();
     test_polymorphic_pointer_downcast_std_shared_fail();
-#endif
+
 
     return boost::report_errors();
 }