TONGARI J wrote:
2014-11-22 17:36 GMT+08:00 ?? <huwei04@hotmail.com>:
Hi, I am looking for how to test if a function member of class exist or not in compile time.I did not find a solution by google so I wrote a piece of code for it.Please let me know if it's already in boost. :)
Yes, it's in Boost.TTI: http://tinyurl.com/k3y5x8l
Has anyone ever worked out how to do this without having to specify the type? E.g. with BOOST_TTI_HAS_MEMBER_DATA I need to write something like has_member_data_fieldname<int ClasdName::*>::value; The most recent time I needed something like this, I wanted to test whether a struct contained a field with a particular name that was convertible to a float (I think float or int16_t in that case). I would have been happy with a test for a field with that name of any type. But I couldn't work out how to do it. Any ideas? Regards, Phil.