template<class Allocator> void swap(basic_stacktrace<Allocator>& a, basic_stacktrace<Allocator>& b) noexcept(noexcept(a.swap(b)));

Effects: Equivalent to a.swap(b).

string to_string(const stacktrace_entry& f);

Returns: A string with a description of f.

Recommended practice: The description should provide information about the contained evaluation, including information from f.source_file() and f.source_line().

template<class Allocator> string to_string(const basic_stacktrace<Allocator>& st);

Returns: A string with a description of st.

ostream& operator<<(ostream& os, const stacktrace_entry& f);

Effects: Equivalent to: return os << to_string(f);

template<class Allocator> ostream& operator<<(ostream& os, const basic_stacktrace<Allocator>& st);

Effects: Equivalent to: return os << to_string(st);