1 Sep
2011
1 Sep
'11
5:38 p.m.
Have a look here: http://www.boost.org/doc/libs/1_47_0/doc/html/proto/users_guide.html#boost_p...
I have: it's the guide I used for producing functions-returning-expressions in the first place. It says absolutely nothing about how functions are specified in grammars. John.