Hi, In my own meta-programming I tend to use a lot of static_asserts and concept checks. However, these do have a negative impact on my compile-times. Take, for example, a meta-function that takes a type-list as its parameter. Assume a pre-condition is that the list may not be empty. What I can do is:
BOOST_STATIC_ASSERT( (mpl::not_< typename mpl::empty< List >::type >::type::value) ); And while this is a good thing most of the time, sometimes I would like to disable these checks so my compiles go faster. What is the recommended way of doing this? 1. Using a define: #ifndef UID_DO_CHECKS BOOST_STATIC_ASSERT( (mpl::not_< typename mpl::empty< List >::type >::type::value) ); #endif 2. Using a boolean trait or policy, that is passed to a meta-if statement: BOOST_STATIC_ASSERT( ( mpl::apply_if< check_policy, mpl::not_< typename mpl::empty< List >::type >::type::value, true_ >::type::value )); 3. Other ideas? Thanks, Jaap Suter p.s. If this is considered off-topic and more suitable for comp.lang.c++(.moderated) I apologize. Please let me know. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost