14. What is the difference between break and continue statement in TCL?

In TCL, both "break" and "continue" are used to alter the flow of control in a loop, but they do it in different ways.

1. Break Statement: The "break" statement in TCL is used to terminate the loop immediately. Once the interpreter encounters the "break" statement, it will stop the current loop execution and move the control to the next command or statement after the loop.

Here is an example of a break statement:

for {set i 0} {$i<10} {incr i} {
    if {$i == 5} {
        break
    }
    puts $i
}

In this example, the loop will terminate when i equals 5, so the output will be 0 1 2 3 4.

2. Continue Statement: The "continue" statement in TCL is used to skip the current iteration of the loop and move the control to the next iteration. When the interpreter encounters the "continue" statement, it will stop the current iteration and start the next one.

Here is an example of a continue statement:

for {set i 0} {$i<10} {incr i} {
    if {$i == 5} {
        continue
    }
    puts $i
}

In this example, when i equals 5, the loop will skip this iteration, so the output will be 0 1 2 3 4 6 7 8 9.

So, the main difference between "break" and "continue" in TCL is that "break" terminates the loop, while "continue" skips the current iteration and continues with the next one.