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'\" Copyright (c) 1993 The Regents of the University of California.

'\" Copyright (c) 1994-1997 Sun Microsystems, Inc.

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'\" RCS: @(#) $Id: global.n,v 1.1.1.1 2002-01-16 10:25:24 markom Exp $

'\"

.so man.macros

.TH global n "" Tcl "Tcl Built-In Commands"

.BS

'\" Note:  do not modify the .SH NAME line immediately below!

.SH NAME

global \- Access global variables

.SH SYNOPSIS

\fBglobal \fIvarname \fR?\fIvarname ...\fR?

.BE

.SH DESCRIPTION

.PP

This command is ignored unless a Tcl procedure is being interpreted.

If so then it declares the given \fIvarname\fR's to be global variables

rather than local ones.

Global variables are variables in the global namespace.

For the duration of the current procedure

(and only while executing in the current procedure),

any reference to any of the \fIvarname\fRs

will refer to the global variable by the same name.

.SH "SEE ALSO"

namespace(n), variable(n)

.SH KEYWORDS

global, namespace, procedure, variable