----- Original Message ----- From: "John Maddock" <boost.regex@virgin.net> To: <boost@lists.boost.org> Sent: Wednesday, January 12, 2011 2:32 PM Subject: Re: [boost] [type_traits] common_type fails when typeof is not used
Fixed header applied to Trunk as of rev 68040.
I modified your tests somewhat and added updated test cases as well (with one case to test when BOOST_COMMON_TYPE_DONT_USE_TYPEOF is defined).
Thanks! John.
Thanks John. There is yet an error on Sun compiler that is not really related to common_type code, but to the test code itself. Test output: Sandia-sun - type_traits - common_type_test / sun-5.10 Rev 68075 / Thu, 13 Jan 2011 01:15:43 +0000 Report Time: Thu, 13 Jan 2011 04:05:07 +0000 Compile [2011-01-13 02:07:06 UTC]: fail "/opt/sunstudio12.1/bin/CC" +d -library=stlport4 -features=tmplife -features=tmplrefstatic -g -erroff=%none -errwarn -m64 -KPIC -DBOOST_ALL_NO_LIB=1 -I".." -c -o "/scratch2/kbelco/boost/results/boost/bin.v2/libs/type_traits/test/common_type_test.test/sun-5.10/debug/address-model-64/stdlib-sun-stlport/common_type_test.o" "../libs/type_traits/test/common_type_test.cpp" "../libs/type_traits/test/common_type_test.cpp", line 47: Error: ac must be initialized. "../libs/type_traits/test/common_type_test.cpp", line 88: Where: While instantiating "assignation_2<C1C2, C1>()". "../libs/type_traits/test/common_type_test.cpp", line 88: Where: Instantiated from non-template code. On the web I have found that Warning: Objects of type AAAA must be initialized This warning is produced when you use new() to allocate a const object without providing an initial value or a default constructor, as shown in the following example: const int * ip = new const int; This is an error, since constants of unknown value are not useful. The solution is to add an initializer. The preceding example would then become const int * ip = new const int(0); I guess that we can change the test code so the default constructor is explicit to avoid this Sun error struct C1 { C1() {}; }; struct C2 { C1() {};}; Best, Vicente