LABEL()

LABEL(V)

RETURNS 1 IF V REPRESENTS AN EXISTING LABEL, 0 OTHERWISE

  • Type: Function
  • Parameter: 1
  • Group: Reference

ACTION

The function LABEL(V) returns 1 if V represents an existing LABEL, 0 otherwise.

V is a string.

SYNTAX: Result=LABEL(V)

  • V is a string

USE

  • The function LABEL() is used to know if a LABEL exists.

ERROR

  • None.

EXAMPLE

label here

if label("here")=1 then print "the label here exists"

here:

SEE ALSO

LABEL