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ActiveTcl User Guide |
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break - Abort looping command
break
This command is typically invoked inside the body of a looping
command such as for or foreach or while. It returns a 3
(TCL_BREAK) result code, which causes a break exception to
occur. The exception causes the current script to be aborted out to
the innermost containing loop command, which then aborts its
execution and returns normally. Break exceptions are also handled
in a few other situations, such as the catch command, Tk event bindings, and
the outermost scripts of procedure bodies.
Print a line for each of the integers from 0 to 5:
for {set x 0} {$x<10} {incr x} {
if {$x > 5} {
break
}
puts "x is $x"
}
catch, continue, for, foreach, return, while
abort, break, loop
Copyright © 1995-1997 Roger E. Critchlow Jr.
Copyright © 1993-1994 The Regents of the University of
California. Copyright © 1994-1996 Sun Microsystems, Inc.