structureof
ACTION: return data structure of compund (UDT) or variabe
USE: obtain data for diagnostics or reflective programming
EXAMPLE: 
type vt long v,double d
dim as vt v :  r=recordof v

RESULT: 
r="
v 0 4 1 A0 , long
d 4 4 1 A0 , double
"

RELATED: prototypeof sizeof offsetof spanof typeof typecodeof recordof #recordof