One way of making sure you have a certain value is to use assert.
2010/1/22 Ian Clark <[email protected]>: > Another thing I'd really like in J (and rookies shouldn't be allowed > to ask such things) is something like the C++ "const". A way of > locking down the name of a quantity so that it can't be changed during > "the run", whatever that is -- at least not without raising an error. > Or (like []WATCHPOINTS in APL+Win) firing an event -- but that has > other smart possibilities. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
