isglobal - check if a variable is global

Calling Sequence

t=isglobal(x)

Parameters

• x : any variable
• t : a boolean

Description

isglobal(x) returns true if x has been declared to be a global variable and false otherwise.

Examples

isglobal(1)
global a
isglobal(a)
 

See Also

global  clearglobal  who