On Apache/2.4.6 (CentOS)
Under GNU General Public License
2025-06-23 22:12 @127.0.0.1 CrawledBy Wget/1.21.2
global(n) Tcl Built-In Commands global(n)
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NAME
global - Access global variables
SYNOPSIS
global varname ?varname ...?
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DESCRIPTION
This command has no effect unless executed in the context of a proc body. If the global
command is executed in the context of a proc body, it creates local variables linked to
the corresponding global variables (though these linked variables, like those created by
upvar, are not included in the list returned by info locals).
If varname contains namespace qualifiers, the local variable's name is the unqualified
name of the global variable, as determined by the namespace tail command.
varname is always treated as the name of a variable, not an array element. An error is
returned if the name looks like an array element, such as a(b).
EXAMPLES
This procedure sets the namespace variable ::a::x
proc reset {} {
global a::x
set x 0
}
This procedure accumulates the strings passed to it in a global buffer, separated by new-
lines. It is useful for situations when you want to build a message piece-by-piece (as if
with puts) but send that full message in a single piece (e.g. over a connection opened
with socket or as part of a counted HTTP response).
proc accum {string} {
global accumulator
append accumulator $string \n
}
SEE ALSO
namespace(n), upvar(n), variable(n)
KEYWORDS
global, namespace, procedure, variable
Tcl global(n)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache/2.4.6 (CentOS)
Under GNU General Public License
2025-06-23 22:12 @127.0.0.1 CrawledBy Wget/1.21.2