Abl-electronic PIC Microcontrollers PIC16 Manuel d'utilisateur télécharger pdf (Page 130)

Jump Statements

A jump statement, when executed, transfers control unconditionally. There are four

such statements in mikroC: break, continue, goto, and return.

Break Statement

Sometimes, you might need to stop the loop from within its body. Use the

break

statement within loops to pass control to the first statement following the inner-

most switch, for, while, or do block.

Break is commonly used in switch statements to stop its execution upon the first

positive match. For example:

switch (state) {

case 0: Lo(); break;

case 1: Mid(); break;

case 2: Hi(); break;

default: Message("Invalid state!");

}

Continue Statement

You can use the

continue statement within loops (while, do, for) to “skip the

cycle”. It passes control to the end of the innermost enclosing end brace belonging

to a looping construct. At that point the loop continuation condition is re-evaluat-

ed. This means that continue demands the next iteration if loop continuation con-

dition is true.

Goto Statement

Use the

goto statement to unconditionally jump to a local label — for more infor-

mation on labels, refer to Labeled Statements. Syntax of

goto statement is:

goto

label_identifier

;

This will transfer control to the location of a local label specified by

label_identifier

. The

label_identifier

has to be a name of the label

within the same function in which the

goto statement is. The goto line can come

before or after the label.

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Abl-electronic PIC Microcontrollers PIC16 Manuel d'utilisateur Page 130

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