-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Li, PingShan (Kansas City)
I got the following error under VC++ 7.1:
error C2664: 'CRYPTO_set_id_callback' : cannot convert parameter 1 from 'boost::_bi::bind_t<R,F,L>' to 'unsigned long (__cdecl *)(void)' with [ R=unsigned long, F=boost::_mfi::mf0<unsigned long,Test>, L=boost::_bi::list1<boost::_bi::list_av_1<Test *>::B1> ] No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
It doesn't even take in void *???? Maybe the fact that it doesn't take in state means something. You should look up that specific callback in the openssl documentation
Is it possible to use boost::bind to bind a C++ member function as a callback function for C interface?
Its easy given that said C interface allows the user to pass in "other data" a la void *.