3.2 Repeat...Until Loop

3.2 Repeat...Until Loop

Repeat ... Until looping almost similar with While...do ,The most important difference between the while-do loop and the repeat-until loop is that the code of the repeat statement is always executed at least once.

can perform more repetitions than one statement, either in the form of a collection of a single statement or a collection of block statement. so that repeated part is everything in between repeat.. Until statement
Syntax :
repeat <statement1>; . . . <statementx>; until <expression>;
or the syntax in baris
repeat
<statement1>;
. . . ;
. . . ;
<statementx>;
until <expression>;

the examples ;

repeat
k := i mode j;
i := j;
j := k;
until j = 0;

normally the looping will stop if expression value is False. but we can using break to force the program exit from looping and continuing the line below the loop