id summary reporter owner description type status milestone component version severity resolution keywords cc 9249 BOOST_MPL_ASSERT is broken in VC12 (VC++2013RC) abyx@… Aleksey Gurtovoy "Code: {{{ #include struct true_type { static const bool value = true; }; struct pred { typedef true_type type; }; static_assert(pred::type::value == true, """"); // ok BOOST_MPL_ASSERT((pred)); // error (line #12) }}} Compiler output: {{{ > cl /It:\_lib\boost\1_55_0b1 Source.cpp Microsoft (R) C/C++ Optimizing Compiler Version 18.00.20827.3 for x86 Copyright (C) Microsoft Corporation. All rights reserved. Source.cpp t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(149) : error C2143: syntax error : missing ';' before '<' t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(153) : see reference to class template instantiation 'boost::mpl::eval_assert' being compiled t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(149) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(152) : error C2238: unexpected token(s) preceding ';' t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(159) : error C2143: syntax error : missing ';' before '<' t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(163) : see reference to class template instantiation 'boost::mpl::eval_assert_not' being compiled t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(159) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int t:\_lib\boost\1_55_0b1\boost/mpl/assert.hpp(162) : error C2238: unexpected token(s) preceding ';' Source.cpp(12) : error C2039: 'assert_arg' : is not a member of 'boost::mpl' Source.cpp(12) : error C3861: 'assert_arg': identifier not found }}} " Bugs closed To Be Determined mpl Boost 1.55.0 Problem fixed