Re: [Boost-users] [mpl] BOOST_MPL_ASSERT_MSG for static_assert

Am 23.07.2014 15:04, schrieb Michael Powell:

Hello,

I would like to add some diagnostic messages during compile time, potentially enumerating one or more types as well.

static_assert is great for simple messages but falls a bit short due to inability to list types and such.

I wonder if BOOST_MPL_ASSERT_MSG is the right answer, however, I am getting the following errors:

BOOST_MPL_ASSERT_MSG( std::is_base_of::value , "requested type is not a node" , (types) );

1>i:\source\kingdom software\cppxml\xml\domain\parts\xnode.h(111): warning C4002: too many actual parameters for macro 'BOOST_MPL_ASSERT_MSG'

Try to play preprocessor yourself. How many commas do you count in the invocation of BOOST_MPL_ASSERT_MSG ? Stefan -- ---------------------------------------------------------------- /dev/random says: Useless Invention: Electric dog polisher. python -c "print '73746566616e2e6e616577654061746c61732d656c656b74726f6e696b2e636f6d'.decode('hex')" GPG Key fingerprint = 2DF5 E01B 09C3 7501 BCA9 9666 829B 49C5 9221 27AF