[boost] Re: [spirit] rule<> and copying

"Eric Niebler" <eric@boost-consulting.com> writes:

Why is that confusing? That's how most other types in C++ behave:

int a,b; // a and b are undefined a = b; // a and b are still undefined ^^^^^ This is undefined behavior, actually.

b = 1; // a is undefined, b is 1

-- Dave Abrahams Boost Consulting http://www.boost-consulting.com