Much of this discussion seems to illustrate a risk in using character literals: it's difficult to refer explicitly to their length attribute. One could write
MVC Target(L'=C'very long string'),=C'very long string') hoping you made the two instances identical. It seems preferable to me to define the literal as a character constant: LS DC C'very long string' and then use its length attribute: MVC Target(L'LS),LS John Ehrman