dup


Name:
dup - Duplicate the object which is on top of the stack
Synopsis:
any dup -> any any  
Examples:
2 dup -> 2 2  
(hello) dup -> (hello) (hello)
Diagnostics:
Raises StackUnderflow error if the stack is empty.  
Author:
docu edited by Sirko Straube  
SeeAlso: Source:
/home/nest/work/nest-2.14.0/sli/slistack.cc