Hi Jan, On 14.02.22 20:45, Jan Rheinländer wrote:

Here's another one, and I suspect it must be connected with the C2766.

lst.h(35): error C2512: 'GiNaC::class_info<GiNaC::registered_class_options>': no appropriate default constructor available

Because to fix this error, I supplied the requested default constructor in

class_info.h line 48:

class_info() {}

which forces me to supply another default constructor

class_info.h(48): error C2512: 'GiNaC::registered_class_options': no appropriate default constructor available

registrar.h line 85:

registered_class_options() {}

and then the "no appropriate default constructor" errors go away but later on in the compile the C2766 turns up.

Please send a patch so we can better see and analye what needs to be done to make it work on that compiler. Thanks in advance. -richy.