Assert()

Causes a macro error with the specified string if the test expression is false (0).

rslt = Assert(int testtexpr, string msg)

Argument	Contents
testsexpr	An integer, or an expression to be evaluated

The Assert() statement generates a macro error of the "error" type, so it can be caught with an "on error" handler.
The Assert() statement does not distinguish between debugging or release mode, like some language assertions do.

Function	Summary
GetLastError()	Gets the text of the last error generated by Maptitude
SetReferenceInfo()	Toggles showing the reference information when calling GetLastError()
Throw()	Causes an error to be raised