id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
12155,variant does not support a class derived from variant as one of its types,Tobias Reh <treh@…>,Antony Polukhin,"variant does not support a class derived from variant as one of its types.
See the following example code:

{{{#!c++
struct A {};
struct B {};
struct C {};

struct AB : boost::variant<A, B> {};

using AB_C = boost::variant<AB, C>;

void foo() {
    AB ab;
    AB_C ab_c{ab}; // member function convert_construct is abiguous
}
}}}
",Bugs,closed,Boost 1.62.0,variant,Boost 1.60.0,Problem,fixed,,