[Boost-users] [Variant] Assertion fails at variant/detail/visitation_impl.hpp:207

Subject: [Boost-users] [Variant] Assertion fails at variant/detail/visitation_impl.hpp:207
From: Attila Rajmund Nohl (attila.r.nohl_at_[hidden])
Date: 2015-01-30 06:08:14

Hello!

I'm using boost-1.55 on Linux. When I run a specific testcase, I get
an abort at line 207 in the visitation_impl.hpp file. The comment says
that "should never be here at runtime". Unfortunately I don't really
understand under what circumstances could runtime end up here - could
someone explain how? The variant has a recursive element, i.e. looks
something like this:

struct Resp;

struct SR {
}

struct AR {
  std::vector<Resp> resp;
}

typedef variant< SR, recursive_wrapper<AR> > RMType;

struct Resp {
  RMType rm;
}