Re: [boost] How to detect if f() returns void or not?

I solved this problem once while writing a different trait and documented it here: http://www.boost.org/doc/libs/1_41_0/doc/html/proto/appendices.html#boost_pr...

This does not check for return type but just ignores it with the operator, trick. In the end, you do not know if fun(a,b) return void or not. Frédéric