# Loops/Break: Difference between revisions

Loops/Break
You are encouraged to solve this task according to the task description, using any language you may know.

Show a loop which prints random numbers (each number newly generated each loop) from 0 to 19 (inclusive).

If a number is 10, stop the loop after printing it, and do not generate any further numbers.

Otherwise, generate and print a second random number before restarting the loop.

If the number 10 is never generated as the first number in a loop, loop forever.

## 11l

Translation of: Python
```L
V a = random:(20)
print(a)
I a == 10
L.break
V b = random:(20)
print(b)```

## 360 Assembly

```*        Loops Break               15/02/2017
LOOPBREA CSECT
USING  LOOPBREA,R13       base register
B      72(R15)            skip savearea
DC     17F'0'             savearea
STM    R14,R12,12(R13)    prolog
ST     R13,4(R15)         " <-
ST     R15,8(R13)         " ->
LOOP     MVC    PG,=CL80' '        clean buffer
LA     R8,PG              ipg=0
BAL    R14,RANDINT        call randint
C      R6,=F'10'          if k=10 then leave
BE     ENDLOOP             <-- loop break
BAL    R14,RANDINT        call randint
XPRNT  PG,L'PG            print buffer
B      LOOP               loop forever
ENDLOOP  XPRNT  PG,L'PG            print buffer
L      R13,4(0,R13)       epilog
LM     R14,R12,12(R13)    " restore
XR     R15,R15            " rc=0
BR     R14                exit
RANDINT  L      R5,RANDSEED        randint
M      R4,=F'397204091'   "
D      R4,=X'7FFFFFFF'    "
ST     R4,RANDSEED        "
LR     R5,R4              "
SR     R4,R4              "
D      R4,=F'20'          "
LR     R6,R4              k=randint(20)
XDECO  R6,XDEC            edit k
MVC    0(4,R8),XDEC+8     output k
LA     R8,4(R8)           ipg=ipg+4
BR     R14                return
RANDSEED DC     F'39710831'        seed
PG       DS     CL80               buffer
XDEC     DS     CL12
YREGS
END    LOOPBREA```
Output:
```   2   3
9  10
14   5
18  16
5   0
1   3
7  17
19   8
17  12
10
```

## 6502 Assembly

Code is called as a subroutine (i.e. JSR LoopBreakSub). Specific OS/hardware routines for generating random numbers and printing are left unimplemented.

```LoopBreakSub:	PHA			;push accumulator onto stack

BreakLoop:	JSR GenerateRandomNum	;routine not implemented
;generates random number and puts in memory location RandomNumber

LDA RandomNumber
JSR DisplayAccumulator	;routine not implemented
CMP #10
BEQ Break
JSR GenerateRandomNum
LDA RandomNumber
JSR DisplayAccumulator
JMP BreakLoop

Break:		PLA			;restore accumulator from stack
RTS			;return from subroutine```

## AArch64 Assembly

Works with: as version Raspberry Pi 3B version Buster 64 bits
```/* ARM assembly AARCH64 Raspberry PI 3B */
/*  program loopbreak64.s   */

/*******************************************/
/* Constantes file                         */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"

/*********************************/
/* Initialized data              */
/*********************************/
.data
szMessEndLoop: .asciz "loop break with value : \n"
szMessResult:  .asciz "Resultat = @ \n"      // message result

.align 4
/*********************************/
/* UnInitialized data            */
/*********************************/
.bss
sZoneConv:               .skip 24
/*********************************/
/*  code section                 */
/*********************************/
.text
.global main
main:                          // entry of program
1:                             // begin loop
mov x4,20
2:
mov x0,19
bl genereraleas            // generate number
cmp x0,10                  // compar value
beq 3f                     // break if equal
bl conversion10            // call function with 2 parameter (x0,x1)
bl strInsertAtCharInc      // insert result at third @ character
bl affichageMess           // display message final
subs x4,x4,1                 // decrement counter
bgt 2b                     // loop if greather
b 1b                       // begin loop one

3:
mov x2,x0                  // save value
bl affichageMess           // display message
mov x0,x2
bl conversion10            // call function with 2 parameter (x0,x1)
bl strInsertAtCharInc      // insert result at third @ character
bl affichageMess           // display message

100:                           // standard end of the program
mov x0,0                   // return code
mov x8,EXIT                // request to exit program
svc 0                      // perform the system call

/***************************************************/
/*   Generation random number                  */
/***************************************************/
/* x0 contains limit  */
genereraleas:
stp x1,lr,[sp,-16]!    // save  registers
stp x2,x3,[sp,-16]!    // save  registers
ldr x2,[x3]
lsr x1,x2,17           // see xorshift on wikipedia
eor x2,x2,x1
lsl x1,x2,31
eor x2,x2,x1
lsr x1,x2,8
eor x1,x2,x1
str x1,[x3]            // save graine for the next call
udiv x1,x2,x0          // divide by value maxi
msub x0,x1,x0,x2       // résult = remainder
100:                       // end function
ldp x2,x3,[sp],16      // restaur  2 registers
ldp x1,lr,[sp],16      // restaur  2 registers
/********************************************************************/
/********************************************************/
/*        File Include fonctions                        */
/********************************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeARM64.inc"```
Output:
```Resultat = 1
Resultat = 8
Resultat = 11
Resultat = 11
Resultat = 5
Resultat = 3
Resultat = 5
Resultat = 12
Resultat = 18
Resultat = 14
loop break with value :
Resultat = 10
```

## Action!

```PROC Main()
BYTE v

PrintE("Before loop")
DO
v=Rand(20)
PrintBE(v)
IF v=10 THEN
EXIT
FI
OD
PrintE("After loop")
RETURN```
Output:
```Before loop
2
6
3
4
11
17
5
17
10
After loop
```

```with Ada.Text_IO;  use Ada.Text_IO;

procedure Test_Loop_Break is
type Value_Type is range 0..19;
package Random_Values is new Ada.Numerics.Discrete_Random (Value_Type);
use Random_Values;
Dice : Generator;
A, B : Value_Type;
begin
loop
A := Random (Dice);
Put_Line (Value_Type'Image (A));
exit when A = 10;
B := Random (Dice);
Put_Line (Value_Type'Image (B));
end loop;
end Test_Loop_Break;
```

## Aime

```integer
main(void)
{
integer a, b;

while (1) {
a = drand(19);
o_integer(a);
o_byte('\n');
if (a == 10) {
break;
}

b = drand(19);
o_integer(b);
o_byte('\n');
}

return 0;
}```

## ALGOL 60

Works with: ALGOL 60 version OS/360
```'BEGIN' 'COMMENT' Loops/Break - ALGOL60 - 18/06/2018;
'INTEGER' SEED;
'INTEGER' 'PROCEDURE' RANDOM(N);
'VALUE' N; 'INTEGER' N;
'BEGIN'
SEED:=(SEED*19157+12347) '/' 21647;
RANDOM:=SEED-(SEED '/' N)*N+1
'END' RANDOM;
'INTEGER' I,J,K;
SYSACT(1,6,120);SYSACT(1,8,60);SYSACT(1,12,1);'COMMENT' open print;
SEED:=31567;
J:=0;
'FOR' I:=1, I+1 'WHILE' I 'LESS' 100 'DO' 'BEGIN'
J:=J+1;
K:=RANDOM(20);
OUTINTEGER(1,K);
'IF' J=8 'THEN' 'BEGIN'
SYSACT(1,14,1);  'COMMENT' skip line;
J:=0
'END';
'IF' K=10 'THEN' 'GOTO' LAB
'END';
LAB:
SYSACT(1,14,1);  'COMMENT' skip line;
'END'```
Output:
```        +17           +4          +20           +3          +16           +5           +1          +17
+11           +2          +12           +5           +7           +6          +10
```

## ALGOL 68

Translation of: C – Note: This specimen retains the original C coding style.
Works with: ALGOL 68 version Standard - no extensions to language used
Works with: ELLA ALGOL 68 version Any (with appropriate job cards)
```main: (
INT a, b;
INT seed := 4; # chosen by a fair dice roll, guaranteed to be random c.f. http://xkcd.com/221/ #
# first random; #
WHILE
a := ENTIER (next random(seed) * 20);
print((a));
# WHILE # NOT (a = 10) DO
b := ENTIER (next random(seed) * 20);
print((b, new line))
OD;
print(new line)
)```
Output:
```        +13          +6
+1          +8
+13          +2
+1         +12
+0         +12
+14          +8
+9          +2
+19         +13
+0          +4
+8         +14
+17          +7
+11          +9
+7          +8
+2          +1
+11          +2
+13         +18
+3          +7
+11         +17
+4         +13
+16         +12
+19         +17
+9          +7
+8          +5
+4          +8
+7          +5
+0         +18
+8         +13
+7          +4
+10
```

## AppleScript

```repeat
set a to random number from 0 to 19
if a is 10 then
log a
exit repeat
end if
set b to random number from 0 to 19
log a & b
end repeat
```

Output:
```(*12, 6*)
(*7, 8*)
(*17, 4*)
(*7, 2*)
(*0, 5*)
(*6, 3*)
(*5, 5*)
(*3, 14*)
(*7, 7*)
(*3, 11*)
(*5, 16*)
(*18, 2*)
(*5, 2*)
(*15, 17*)
(*16, 10*)
(*4, 18*)
(*8, 5*)
(*4, 15*)
(*11, 14*)
(*7, 2*)
(*1, 7*)
(*7, 7*)
(*4, 9*)
(*12, 17*)
(*8, 16*)
(*9, 1*)
(*16, 15*)
(*8, 2*)
(*9, 6*)
(*13, 6*)
(*17, 0*)
(*17, 18*)
(*4, 7*)
(*8, 10*)
(*11, 0*)
(*14, 17*)
(*9, 8*)
(*2, 17*)
(*1, 5*)
(*4, 5*)
(*5, 2*)
(*10*)```

## Arc

```(point break
(while t
(let x (rand 20)
(prn "a: " x)
(if (is x 10)
(break)))
(prn "b: " (rand 20))))```

## ARM Assembly

Works with: as version Raspberry Pi
```/* ARM assembly Raspberry PI  */
/*  program loopbreak.s   */

/* Constantes    */
.equ STDOUT, 1     @ Linux output console
.equ EXIT,   1     @ Linux syscall
.equ WRITE,  4     @ Linux syscall

/*********************************/
/* Initialized data              */
/*********************************/
.data
szMessEndLoop: .asciz "loop break with value : \n"
szMessResult:  .ascii "Resultat = "      @ message result
sMessValeur:   .fill 12, 1, ' '
.asciz "\n"
.align 4
iGraine:  .int 123456
/*********************************/
/* UnInitialized data            */
/*********************************/
.bss
/*********************************/
/*  code section                 */
/*********************************/
.text
.global main
main:                @ entry of program
push {fp,lr}      @ saves 2 registers
1:    @ begin loop
mov r4,#20
2:
mov r0,#19
bl genereraleas               @ generate number
cmp r0,#10                       @ compar value
beq 3f                         @ break if equal
bl conversion10             @ call function with 2 parameter (r0,r1)
bl affichageMess            @ display message
subs r4,#1                   @ decrement counter
bgt 2b                      @ loop if greather
b 1b                          @ begin loop one

3:
mov r2,r0             @ save value
bl affichageMess            @ display message
mov r0,r2
bl conversion10       @ call function with 2 parameter (r0,r1)
bl affichageMess            @ display message

100:   @ standard end of the program
mov r0, #0                  @ return code
pop {fp,lr}                 @restaur 2 registers
mov r7, #EXIT              @ request to exit program
svc #0                       @ perform the system call

/******************************************************************/
/*     display text with size calculation                         */
/******************************************************************/
/* r0 contains the address of the message */
affichageMess:
push {r0,r1,r2,r7,lr}      @ save  registres
mov r2,#0                  @ counter length
1:      @ loop length calculation
ldrb r1,[r0,r2]           @ read octet start position + index
cmp r1,#0                  @ if 0 its over
bne 1b                    @ and loop
@ so here r2 contains the length of the message
mov r1,r0        			@ address message in r1
mov r0,#STDOUT      		@ code to write to the standard output Linux
mov r7, #WRITE             @ code call system "write"
svc #0                      @ call systeme
pop {r0,r1,r2,r7,lr}        @ restaur des  2 registres */
bx lr                       @ return
/******************************************************************/
/*     Converting a register to a decimal                                 */
/******************************************************************/
/* r0 contains value and r1 address area   */
conversion10:
push {r1-r4,lr}    @ save registers
mov r3,r1
mov r2,#10

1:	   @ start loop
bl divisionpar10 @ r0 <- dividende. quotient ->r0 reste -> r1
strb r1,[r3,r2]  @ store digit on area
sub r2,#1         @ previous position
cmp r0,#0         @ stop if quotient = 0 */
bne 1b	          @ else loop
@ and move spaces in first on area
mov r1,#' '   @ space
2:
strb r1,[r3,r2]  @ store space in area
subs r2,#1       @ @ previous position
bge 2b           @ loop if r2 >= zéro

100:
pop {r1-r4,lr}    @ restaur registres
bx lr	          @return
/***************************************************/
/*   division par 10   signé                       */
/* Thanks to http://thinkingeek.com/arm-assembler-raspberry-pi/*
/* and   http://www.hackersdelight.org/            */
/***************************************************/
/* r0 dividende   */
/* r0 quotient */
/* r1 remainder  */
divisionpar10:
/* r0 contains the argument to be divided by 10 */
push {r2-r4}   /* save registers  */
mov r4,r0
mov r3,#0x6667   @ r3 <- magic_number  lower
movt r3,#0x6666  @ r3 <- magic_number  upper
smull r1, r2, r3, r0   @ r1 <- Lower32Bits(r1*r0). r2 <- Upper32Bits(r1*r0)
mov r2, r2, ASR #2     /* r2 <- r2 >> 2 */
mov r1, r0, LSR #31    /* r1 <- r0 >> 31 */
add r0, r2, r1         /* r0 <- r2 + r1 */
add r2,r0,r0, lsl #2   /* r2 <- r0 * 5 */
sub r1,r4,r2, lsl #1   /* r1 <- r4 - (r2 * 2)  = r4 - (r0 * 10) */
pop {r2-r4}
bx lr                  /* leave function */

/***************************************************/
/*   Generation random number                  */
/***************************************************/
/* r0 contains limit  */
genereraleas:
push {r1-r4,lr}    @ save registers
ldr r2,[r4]
ldr r3,iNbDep1
mul r2,r3,r2
ldr r3,iNbDep1
str r2,[r4]     @ maj de la graine pour l appel suivant

mov r1,r0        @ divisor
mov r0,r2        @ dividende
bl division
mov r0,r3       @  résult = remainder

100:                @ end function
pop {r1-r4,lr}   @ restaur registers
bx lr            @ return
/********************************************************************/
iNbDep1: .int 0x343FD
iNbDep2: .int 0x269EC3
/***************************************************/
/* integer division unsigned                       */
/***************************************************/
division:
/* r0 contains dividend */
/* r1 contains divisor */
/* r2 returns quotient */
/* r3 returns remainder */
push {r4, lr}
mov r2, #0                @ init quotient
mov r3, #0                @ init remainder
mov r4, #32               @ init counter bits
b 2f
1:          @ loop
movs r0, r0, LSL #1     @ r0 <- r0 << 1 updating cpsr (sets C if 31st bit of r0 was 1)
adc r3, r3, r3           @ r3 <- r3 + r3 + C. This is equivalent to r3 <- (r3 << 1) + C
cmp r3, r1               @ compute r3 - r1 and update cpsr
subhs r3, r3, r1        @ if r3 >= r1 (C=1) then r3 <- r3 - r1
adc r2, r2, r2           @ r2 <- r2 + r2 + C. This is equivalent to r2 <- (r2 << 1) + C
2:
subs r4, r4, #1          @ r4 <- r4 - 1
bpl 1b                  @ if r4 >= 0 (N=0) then loop
pop {r4, lr}
bx lr```

## Arturo

```while ø [
a: random 0 19
prints [a ""]
if a=10 -> break

b: random 0 19
print b
]
print ""
```
Output:
```11  1
11  16
19  14
17  0
18  11
9  9
1  15
5  5
1  16
7  10
10  ```

## AutoHotkey

```Loop
{
Random, var, 0, 19
output = %output%`n%var%
If (var = 10)
Break
Random, var, 0, 19
output = %output%`n%var%
}
MsgBox % output
```

## Avail

```rng ::= a pRNG;
checked : [0..19];
Do [
checked : = rng's next [0..19];
Print: “checked”;
] while checked ≠ 10 alternate with [
Print: " " ++ “rng's next [0..19]” ++ "\n";
];```

This demonstrates two interesting Avail features: the alternate with loop structures, which provide two separate code blocks that are run with a check in between, and the random number generator's ability to pick an item from the ranger of a given number type (`[0..19]` is an expression generating a type whose values are integers in the range 0-19 inclusive).

## AWK

```BEGIN {
srand()  # randomize the RNG
for (;;) {
print n = int(rand() * 20)
if (n == 10)
break
print int(rand() * 20)
}
}
```

## Axe

Because Axe only supports breaking out of loops as end conditions, the behavior must be simulated using a return statement. Note, however, that this will exit the current call context, not the necessarily just the current loop.

```While 1
rand^20→A
Disp A▶Dec
ReturnIf A=10
rand^20→B
Disp B▶Dec,i
End```

## BASIC

### Applesoft BASIC

```FOR I = 0 TO 1 STEP 0 : N = INT(RND(1) * 20) : PRINT " "N; : IF N <> 10 THEN ? ","INT(RND(1) * 20); : NEXT
```

### BaCon

```REPEAT
number = RANDOM(20)
PRINT "first  " ,number
IF number = 10 THEN
BREAK
ENDIF
PRINT "second  ",RANDOM(20)
UNTIL FALSE
```

### BASIC256

```do
i = int(rand * 19)
print i; "  ";
if i = 10 then exit do
i = int(rand * 19)
print i; "  ";
until false
print
end```

### Commodore BASIC

In Commodore BASIC, the function RND() generates a floating point number from 0.0 to 1.0 (exclusive).

```10 X = RND(-TI) : REM SEED RN GENERATOR
20 A = INT(RND(1)*20)
30 PRINT A
40 IF A = 10 THEN 80
50 B = INT(RND(1)*20)
60 PRINT B
70 GOTO 20
80 END```

### IS-BASIC

```100 RANDOMIZE
110 DO
120   LET A=RND(20)+1
130   PRINT A,
140   IF A=10 THEN EXIT DO
150   PRINT RND(20)+1
160 LOOP```

### QuickBASIC

Works with: QuickBasic version 4.5
```do
a = int(rnd * 20)
print a
if a = 10 then exit loop 'EXIT FOR works the same inside FOR loops
b = int(rnd * 20)
print b
loop
```

### True BASIC

```RANDOMIZE

DO
LET i = INT(RND * 19)
PRINT i; "  ";
IF i = 10 THEN
EXIT DO
END IF
LET i = INT(RND * 19)
PRINT i; "  ";
LOOP
PRINT
END
```

### ZX Spectrum Basic

On the ZX Spectrum, for loops must be terminated through the NEXT statement, otherwise a memory leak will occur. To terminate a loop prematurely, set the loop counter to the last iterative value and jump to the NEXT statement:

```10 FOR l = 1 TO 20
20 IF l = 10 THEN LET l = 20: GO TO 40: REM terminate the loop
30 PRINT l
40 NEXT l
50 STOP
```

The correct solution:

```10 LET a = INT (RND * 20)
20 PRINT a
30 IF a = 10 THEN STOP
40 PRINT INT (RND * 20)
50 GO TO 10
```

## Batch File

```@echo off
:loop
set /a N=%RANDOM% %% 20
echo %N%
if %N%==10 exit /b
set /a N=%RANDOM% %% 20
echo %N%
goto loop
```

## BBC BASIC

```      REPEAT
num% = RND(20)-1
PRINT num%
IF num%=10 THEN EXIT REPEAT
PRINT RND(20)-1
UNTIL FALSE
```

## bc

```s = 1  /* seed of the random number generator */
scale = 0

/* Random number from 0 to 20. */
define r() {
auto a
while (1) {
/* Formula (from POSIX) for random numbers of low quality. */
s = (s * 1103515245 + 12345) % 4294967296
a = s / 65536       /* a in [0, 65536) */
if (a >= 16) break  /* want a >= 65536 % 20 */
}
return (a % 20)
}

while (1) {
n = r()
n    /* print 1st number */
if (n == 10) break
r()  /* print 2nd number */
}
quit
```

## Befunge

```>60v  *2\<
>?>\1-:|
1+    \$
>^    7
v.:%++67<
>55+-#v_@
>60v  *2\<
>?>\1-:|
1+    \$
>^    7
^         .%++67<
```

## C

```int main(){
time_t t;
int a, b;
srand((unsigned)time(&t));
for(;;){
a = rand() % 20;
printf("%d\n", a);
if(a == 10)
break;
b = rand() % 20;
printf("%d\n", b);
}
return 0;
}
```

Output (example):

```12
18
2
8
10
18
9
9
4
10
```

## C#

```class Program
{
static void Main(string[] args)
{
Random random = new Random();
while (true)
{
int a = random.Next(20);
Console.WriteLine(a);
if (a == 10)
break;
int b = random.Next(20)
Console.WriteLine(b);
}

}
}
```

## C++

```#include <iostream>
#include <ctime>
#include <cstdlib>

int main(){
srand(time(NULL)); // randomize seed
while(true){
const int a = rand() % 20; // biased towards lower numbers if RANDMAX % 20 > 0
std::cout << a << std::endl;
if(a == 10)
break;
const int b = rand() % 20;
std::cout << b << std::endl;
}
return 0;
}
```

## Chapel

```use Random;

var r = new RandomStream();
while true {
var a = floor(r.getNext() * 20):int;
writeln(a);
if a == 10 then break;
var b = floor(r.getNext() * 20):int;
writeln(b);
}
delete r;
```

## Chef

"Liquify" is now depreciated in favor of "Liquefy", but my interpreter/compiler (Acme::Chef) works only with "Liquify" so that's how I'm leaving it. At least it'll work no matter which version you use.

```Healthy Vita-Sauce Loop - Broken.

Makes a whole lot of sauce for two people.

Ingredients.
0 g Vitamin A
1 g Vitamin B
2 g Vitamin C
3 g Vitamin D
4 g Vitamin E
5 g Vitamin F
6 g Vitamin G
7 g Vitamin H
8 g Vitamin I
9 g Vitamin J
10 g Vitamin K
11 g Vitamin L
12 g Vitamin M
13 g Vitamin N
14 g Vitamin O
15 g Vitamin P
16 g Vitamin Q
17 g Vitamin R
18 g Vitamin S
19 g Vitamin T
20 g Vitamin U
21 g Vitamin V
22 g Vitamin W
32 g Vitamin X
24 g Vitamin Y
25 g Vitamin Z

Method.
Liquify Vitamin X.
Put Vitamin N into 1st mixing bowl.
Fold Vitamin Y into 1st mixing bowl.
Liquify Vitamin Y.
Clean 1st mixing bowl.
Put Vitamin K into 1st mixing bowl.
Fold Vitamin Z into 1st mixing bowl.
Liquify Vitamin Z.
Clean 1st mixing bowl.
Put Vitamin Y into 4th mixing bowl.
Put Vitamin Z into 4th mixing bowl.
Pour contents of the 4th mixing bowl into the 2nd baking dish.
Put Vitamin A into 2nd mixing bowl. Put Vitamin B into 2nd mixing bowl. Put Vitamin C into 2nd mixing bowl. Put Vitamin D into 2nd mixing bowl. Put Vitamin E into 2nd mixing bowl. Put Vitamin F into 2nd mixing bowl. Put Vitamin G into 2nd mixing bowl. Put Vitamin H into 2nd mixing bowl. Put Vitamin I into 2nd mixing bowl. Put Vitamin J into 2nd mixing bowl. Put Vitamin K into 2nd mixing bowl. Put Vitamin L into 2nd mixing bowl. Put Vitamin M into 2nd mixing bowl. Put Vitamin N into 2nd mixing bowl. Put Vitamin O into 2nd mixing bowl. Put Vitamin P into 2nd mixing bowl. Put Vitamin Q into 2nd mixing bowl. Put Vitamin R into 2nd mixing bowl. Put Vitamin S into 2nd mixing bowl. Put Vitamin T into 2nd mixing bowl.
Verb the Vitamin V.
Mix the 2nd mixing bowl well.
Fold Vitamin U into 2nd mixing bowl.
Put Vitamin U into 3rd mixing bowl.
Remove Vitamin K from 3rd mixing bowl.
Fold Vitamin V into 3rd mixing bowl.
Put Vitamin X into 1st mixing bowl.
Put Vitamin V into 1st mixing bowl.
Verb until verbed.
Pour contents of the 1st mixing bowl into the 1st baking dish.

Serves 2.```

## Clojure

```(loop [[a b & more] (repeatedly #(rand-int 20))]
(println a)
(when-not (= 10 a)
(println b)
(recur more)))
```

## COBOL

Works with: OpenCOBOL
```       IDENTIFICATION DIVISION.
PROGRAM-ID. Random-Nums.

DATA DIVISION.
WORKING-STORAGE SECTION.
01  Num  PIC Z9.

PROCEDURE DIVISION.
Main.
PERFORM FOREVER
PERFORM Generate-And-Display-Num

IF Num = 10
EXIT PERFORM
ELSE
PERFORM Generate-And-Display-Num
END-IF
END-PERFORM

GOBACK
.

Generate-And-Display-Num.
COMPUTE Num =  FUNCTION REM(FUNCTION RANDOM * 100, 20)
DISPLAY Num
.
```

## CoffeeScript

We can use print from the Rhino JavaScript shell as in the JavaScript example or console.log, with a result like this:

```loop
print a = Math.random() * 20 // 1
break if a == 10
print Math.random() * 20 // 1
```

## ColdFusion

```<Cfset randNum = 0>
<cfloop condition="randNum neq 10">
<Cfset randNum = RandRange(0, 19)>
<Cfoutput>#randNum#</Cfoutput>
<Cfif randNum eq 10><cfbreak></Cfif>
<Cfoutput>#RandRange(0, 19)#</Cfoutput>
<Br>
</cfloop>
```
Output:

My first two test outputs (I swear this is true)

```6 0
9 6
12 3
6 0
14 10
19 12
18 14
19 8
3 2
19 1
11 12
16 9
11 15
3 19
13 8
6 4
4 4
13 17
16 9
5 12
12 6
4 14
1 10
3 7
11 15
11 8
0 16
16 14
8 14
11 10
8 8
16 11
4 7
19 10
8 2
15 11
18 10
1 2
18 9
4 9
6 6
11 8
14 6
17 15
13 2
2 0
2 17
8 17
18 13
11 5
15 18
17 8
15 3
7 17
7 13
15 14
11 9
10
```
```10
```

## Common Lisp

```(loop for a = (random 20)
do (print a)
until (= a 10)
do (print (random 20)))
```

### Using DO

```(do ((a (random 20) (random 20)))	; Initialize to rand and set new rand on every loop
((= a 10) (write a))		; Break condition and last step
(format t "~a~3T~a~%" a (random 20)))	; On every loop print formated `a' and rand `b'
```
Output:
```19 7
8  16
17 10
19 12
7  16
5  19
16 1
8  8
3  18
3  5
3  3
9  7
1  15
1  10
14 10
2  4
13 6
10
```

## D

```import std.stdio, std.random;

void main() {
while (true) {
int r = uniform(0, 20);
write(r, " ");
if (r == 10)
break;
write(uniform(0, 20), " ");
}
}
```
Output:
`2 4 9 5 3 7 4 4 14 14 3 7 13 8 13 6 10 `

## dc

Translation of: bc
```1 ss  [s = seed of the random number generator]sz
0k    [scale = 0]sz

[Function r: Push a random number from 0 to 20.]sz
[
[2Q]SA
[
[Formula (from POSIX) for random numbers of low quality.]sz
ls 1103515245 * 12345 + 4294967296 % d ss  [Compute next s]sz
65536 /     [it = s / 65536]sz
d 16 !>A    [Break loop if 16 <= it]sz
sz 0 0 =B   [Forget it, continue loop]sz
]SB 0 0 =B
20 %         [Push it % 20]sz
LA sz LB sz  [Restore A, B]sz
]sr

[2Q]sA
[
0 0 =r p     [Print 1st number.]sz
10 =A        [Break if 10 == it.]sz
0 0 =r p sz  [Print 2nd number.]sz
0 0 =B       [Continue loop.]sz
]sB 0 0 =B```

## Delphi

```program Project5;

{\$APPTYPE CONSOLE}

var
num:Integer;
begin
Randomize;
while true do
begin
num:=Random(20);
Writeln(num);
if num=10 then break;
end;
end.
```

## DWScript

```while True do begin
var num := RandomInt(20);
PrintLn(num);
if num=10 then Break;
end;
```

## E

```while (true) {
def a := entropy.nextInt(20)
print(a)
if (a == 10) {
println()
break
}
println(" ", entropy.nextInt(20))
}```

## EasyLang

```repeat
a = random 20
print a
until a = 10
print random 20
.
```

## Eiffel

```example
-- Eiffel example code
local
n: INTEGER
r: RANDOMIZER
do
from
create r
n := r.random_integer_in_range (0 |..| 19)
until
n = 10
loop
n := r.random_integer_in_range (0 |..| 19)
end
end
```
Output:

The output is superfluous and unneeded to read and understand what the Eiffel code is doing. The test code is sufficient to prove that it works. Uses randomizer library located at: https://github.com/ljr1981/randomizer

## Ela

This implementation uses .NET Framework Math.Randomize function. Current ticks multiplied by an iteration index are used as a seed. As a result, an output looks almost truly random:

```open datetime random monad io

loop = loop' 1
where loop' n t = do
dt <- datetime.now
seed <- return <| toInt <| (ticks <| dt) * n
r <- return \$ rnd seed 0 19
putStrLn (show r)
if r <> t then loop' (n + 1) t else return ()

loop 10 ::: IO```

## Elixir

Works with: Elixir version 1.2
```defmodule Loops do
def break, do: break(random)

defp break(10), do: IO.puts 10
defp break(r) do
IO.puts "#{r},\t#{random}"
break(random)
end

defp random, do: Enum.random(0..19)
end

Loops.break
```
Output:
```13,     7
12,     7
2,      16
3,      19
17,     10
5,      17
14,     0
7,      6
5,      19
5,      12
4,      2
8,      14
1,      17
13,     5
10
```

## Emacs Lisp

```(defun wait_10 ()
(catch 'loop-break
(while 't
(let ((math (random 19)))
(if (= math 10)
(progn  (message "Found value: %d" math)
(throw 'loop-break math))
(message "current number is: %d" math) ) ) ) ) )

(wait_10)
```

## Erlang

```%% Implemented by Arjun Sunel
-module(forever).
-export([main/0, for/0]).

main() ->
for().

for() ->
K = random:uniform(19),
io:fwrite( "~p ", [K] ),
if  K==10 ->
ok;
true ->
M = random:uniform(19),
io:format("~p~n",[M]),
for()
end.
```

## ERRE

```LOOP
A=INT(RND(1)*20)
PRINT(A)
IF A=10 THEN EXIT LOOP END IF !EXIT FOR works the same inside FOR loops
PRINT(INT(RND(1)*20))
END LOOP```

The `RND(X)` function returns a random integer from 0 to 1. X is a dummy argument.

## Euphoria

```integer i
while 1 do
i = rand(20) - 1
printf(1, "%g ", {i})
if i = 10 then
exit
end if
printf(1, "%g ", {rand(20)-1})
end while```

The `rand()` function returns a random integer from 1 to the integer provided.

## F#

```// Loops/Break. Nigel Galloway: February 21st., 2022
let n=System.Random()
let rec fN g=printf "%d " g; if g <> 10 then fN(n.Next(20))
fN(n.Next(20))
```

## Factor

Using `with-return`:

```[
[ 20 random [ . ] [ 10 = [ return ] when ] bi 20 random . t ] loop
] with-return
```

Idiomatic Factor:

```[ 20 random [ . ] [ 10 = not ] bi dup [ 20 random . ] when ] loop
```

## Fantom

```class ForBreak
{
public static Void main ()
{
while (true)
{
a := Int.random(0..19)
echo (a)
if (a == 10) break
echo (Int.random(0..19))
}
}
}```

## Forth

```include random.fs

: main
begin  20 random dup . 10 <>
while  20 random .
repeat ;

\ use LEAVE to break out of a counted loop
: main
100 0 do
i random dup .
10 = if leave then
i random .
loop ;
```

## Fortran

Works with: Fortran version 90 and later
```program Example
implicit none

real :: r
integer :: a, b

do
call random_number(r)
a = int(r * 20)
write(*,*) a
if (a == 10) exit
call random_number(r)
b = int(r * 20)
write(*,*) b
end do

end program Example
```
Works with: Fortran version 77 and later
```      PROGRAM LOOPBREAK
INTEGER I, RNDINT

C       It doesn't matter what number you put here.
CALL SDRAND(123)

C       Because FORTRAN 77 semantically lacks many loop structures, we
C       have to use GOTO statements to do the same thing.
10   CONTINUE
C         Print a random number.
I = RNDINT(0, 19)
WRITE (*,*) I

C         If the random number is ten, break (i.e. skip to after the end
C         of the "loop").
IF (I .EQ. 10) GOTO 20

C         Otherwise, print a second random number.
I = RNDINT(0, 19)
WRITE (*,*) I

C         This is the end of our "loop," meaning we jump back to the
C         beginning again.
GOTO 10

20   CONTINUE

STOP
END

C FORTRAN 77 does not come with a random number generator, but it
C is easy enough to type "fortran 77 random number generator" into your
C preferred search engine and to copy and paste what you find. The
C following code is a slightly-modified version of:
C
C     http://www.tat.physik.uni-tuebingen.de/
C         ~kley/lehre/ftn77/tutorial/subprograms.html
SUBROUTINE SDRAND (IRSEED)
COMMON  /SEED/ UTSEED, IRFRST
UTSEED = IRSEED
IRFRST = 0
RETURN
END
INTEGER FUNCTION RNDINT (IFROM, ITO)
INTEGER IFROM, ITO
PARAMETER (MPLIER=16807, MODLUS=2147483647,                     &
&              MOBYMP=127773, MOMDMP=2836)
COMMON  /SEED/ UTSEED, IRFRST
INTEGER HVLUE, LVLUE, TESTV, NEXTN
SAVE    NEXTN
IF (IRFRST .EQ. 0) THEN
NEXTN = UTSEED
IRFRST = 1
ENDIF
HVLUE = NEXTN / MOBYMP
LVLUE = MOD(NEXTN, MOBYMP)
TESTV = MPLIER*LVLUE - MOMDMP*HVLUE
IF (TESTV .GT. 0) THEN
NEXTN = TESTV
ELSE
NEXTN = TESTV + MODLUS
ENDIF
IF (NEXTN .GE. 0) THEN
RNDINT = MOD(MOD(NEXTN, MODLUS), ITO - IFROM + 1) + IFROM
ELSE
RNDINT = MOD(MOD(NEXTN, MODLUS), ITO - IFROM + 1) + ITO + 1
ENDIF
RETURN
END
```
Works with: Fortran version 66 and earlier

Anyone who attempts to produce random numbers via a computation is already in a state of sin, so, one might as well be hung as a goat rather than as a lamb. Here is a version using the RANDU generator, in the style of Fortran 66 as offered by the IBM1130. No logical-if statements and reliance on implicit type declarations. Sixteen-bit integers result. The standard advice is to start IX off as an odd number. Note that RANDU does not update IX (the "seed"); the caller must do so. Since integer overflow producing negative numbers is undone by adding 32768 (trusting that the compiler will not attempt to combine constants, thus + 32767 + 1) in the absence of an AND operation, possible values for IY are presumably zero to 32767. Since IY is divided by 32767.0 (not 32768.0 for example), the range for YFL is zero to one inclusive, though further inspection shows that zero is not attained for proper starts - should IX be zero it will never change, thus the span is (0,1]; a more common arrangement is [0,1).

Because the upper bound is attainable, multiplying YFL by 19 and truncating the result will mean that 19 appears only as an edge event when IY = 32767. Multiplying by 20 will ensure that 19 gets its fair share along with each other integer, but, the edge event might now occasionally produce a 20. There is no MIN function available, so, explicit testing results. Rather than repeat this code with its consequent litter of labels, a helper function IR19 does the work once. These out-by-one opportunities are vexing.

The RANDU routine is so notorious that latter-day compilers can supply their own RANDU (using a better method), and further, disregard a user-supplied RANDU routine so it may have to be called RANDUU or some other name!

```      SUBROUTINE RANDU(IX,IY,YFL)
Copied from the IBM1130 Scientific Subroutines Package (1130-CM-02X): Programmer's Manual, page 60.
CAUTION! This routine's 32-bit variant is reviled by Prof. Knuth and many others for good reason!
IY = IX*899
IF (IY) 5,6,6
5   IY = IY + 32767 + 1
6   YFL = IY
YFL = YFL/32767.
END

FUNCTION IR19(IX)
CALL RANDU(IX,IY,YFL)
IX = IY
I = YFL*20
IF (I - 20) 12,11,11
11   I = 19
12   IR19 = I
END

IX = 1
Commence the loop.
10 I = IR19(IX)
WRITE (6,11) I
11 FORMAT (I3)
IF (I - 10) 12,20,12
12 I = IR19(IX)
WRITE (6,11) I
GO TO 10
Cease.
20 CONTINUE
END
```

Output, converted to along the line:

``` 0 13  4 19  1  7  2 12  4  7 14 11  6  4  0  9  5 12 16 19 18  2  0 13  2  7 10
```

This source will compile with later compilers (possibly after adding INTEGER*2 declarations to not use larger integers), as well as earlier compilers. But the IBM1620's Fortran II ran on a decimal computer (and the compiler allowed an option to specify how many digits in a number) so the assumption of sixteen-bit two's-complement arithmetic would fail. There was once much more variety in computer design, not just always a power of two in word sizes.

## FreeBASIC

```' FB 1.05.0 Win64

Dim i As Integer
Randomize
Do
i = Int(Rnd * 20)
Print Using "##"; i;
Print "  ";
If i = 10 Then Exit Do
i = Int(Rnd * 20)
Print Using "##"; i;
Print"  ";
Loop

Print
Sleep
```

Sample output

Output:
``` 6  12   2  16   5  19   9   6  16   1  16  10   1   4  18   3   2   9  19   0
19  13   0   0  12  17  13  12  18  10   8  13   9   5  14   7  10
```

## Frink

```while true
{
a = random[0,19]
print["\$a "]
if a == 10
break

b = random[0,19]
print["\$b "]
}```
Output:
```3 8 8 8 11 6 3 2 10
```

## FutureBasic

```include "NSLog.incl"

long num
do
num = rnd(20) - 1
NSLog(@"%ld",num)
until ( num == 10 )

HandleEvents```

## Gambas

```Public Sub Form_Open()
Dim iRand As Integer

Repeat
iRand = Rnd * 20
Print iRand
Until iRand = 10

End
```
==Gambas==
```Public Sub Main()
Dim byNo As Byte

Do
byNo = Rand(0, 19)
Print byNo;;
If byNo = 10 Then Break
byNo = Rand(0, 19)
Print byNo;;
Loop

End
```

Output:

```0 5 12 8 1 13 16 5 4 11 5 7 15 12 16 7 9 10 13 19 4 10 2 13 16 7 0 1 16 3 17 10 0 16 14 0 0 8 6 2 1 5 9 12 2 18 15 1 1 17 9 18 8 17 19 12 6 19 9 5 15 1 2 7 2 11 18 1 15 19 10
```

## GAP

```while true do
a := Random(0, 19);
Print(a);
if a = 10 then
Print("\n");
break;
fi;
a := Random(0, 19);
Print("\t", a, "\n");
od;

# 11      6
# 5       8
# 1       4
# 5       10
# 1       16
# 10
```

## GML

```while(1)
{
a = floor(random(19))
show_message(string(a))
if(a = 10)
break
b = floor(random(19))
show_message(string(a))
}```

## Go

```package main

import "fmt"
import "math/rand"
import "time"

func main() {
rand.Seed(time.Now().UnixNano())
for {
a := rand.Intn(20)
fmt.Println(a)
if a == 10 {
break
}
b := rand.Intn(20)
fmt.Println(b)
}
}
```

## Groovy

```final random = new Random()

while (true) {
def random1 = random.nextInt(20)
print random1
if (random1 == 10) break
print '     '
println random.nextInt(20)
}
```

## GW-BASIC

```10 NUM = 0
20 WHILE NUM <> 10
30     NUM = INT(RND * 20)
40     PRINT NUM
50 WEND
```

## Harbour

```PROCEDURE Loop()

LOCAL n

DO WHILE .T.
? n := hb_RandomInt( 0, 19 )
IF n == 10
EXIT
ENDIF
? hb_RandomInt( 0, 19 )
ENDDO

RETURN
```

```import Control.Monad
import System.Random

loopBreak n k = do
r <- randomRIO (0,n)
print r
unless (r==k) \$ do
print =<< randomRIO (0,n)
loopBreak n k
```

Use:

```loopBreak 19 10
```

## Haxe

```class Program {
static public function main():Void {
while(true) {
var a = Std.random(20);
Sys.println(a);
if (a == 10)
break;
var b = Std.random(20);
Sys.println(b);
}
}
}
```

## hexiscript

```while true
let r rand 20
println r
if r = 10
break
endif
println rand 20
endwhile```

## HicEst

```1  DO i = 1, 1E20 ! "forever"
a = INT( RAN(10, 10) )
WRITE(name) a
IF( a == 10) GOTO 10
b = INT( RAN(10, 10) )
WRITE(name) b
ENDDO
10
END```

## HolyC

```U16 a, b;
while (1) {
a = RandU16 % 20;
Print("%d\n", a);

if (a == 10) break;

b = RandU16 % 20;
Print("%d\n", b);
}```

## Icon and Unicon

```procedure main()
while 10 ~= writes(?20-1) do write(", ",?20-1)
end
```

Notes:

• For any positive integer i, ?i produces a value j where 1 <= j <= i
• Although this can be written with a break (e.g. repeat expression & break), there is no need to actually use one. (And it's ugly).
• Programmers new to Icon/Unicon need to understand that just about everything returns values including comparison operators, I/O functions like write/writes.
• This program will perform similarly but not identically under Icon and Unicon because the random operator ?i behaves differently. While both produce pseudo-random numbers a different generator is used. Also, the sequence produced by Icon begins with the same seed value and is repeatable whereas the sequence produced by Unicon does not. One way to force Icon to use different random sequences on each call would be to add the line
```&random := integer(map("smhSMH","Hh:Mm:Ss",&clock))
```
at the start of the main procedure to set the random number seed based on the time of day.

## Io

```loop(
a := Random value(0,20) floor
write(a)
if( a == 10, writeln ; break)
b := Random value(0,20) floor
writeln(" ",b)
)
```

## J

```loopexample=: {{
while. do.
echo k=. ?20
if. 10=k do. return. end.
echo ?20
end.
}}
```

Note that `break.` or `goto_FOO.` could have been used in place of `return.`:

```loopexample2=: verb define
while. do.
echo k=. ?20
if. 10=k do. break. end.
echo ?20
end.
)
```
```loopexample3=: {{
while. do.
echo k=. ?20
if. 10=k do. goto_done. end.
echo ?20
end.
label_done.
}}
```

## Java

```import java.util.Random;

Random rand = new Random();
while(true){
int a = rand.nextInt(20);
System.out.println(a);
if(a == 10) break;
int b = rand.nextInt(20);
System.out.println(b);
}
```

## JavaScript

```for (;;) {
var a = Math.floor(Math.random() * 20);
print(a);
if (a == 10)
break;
a = Math.floor(Math.random() * 20);
print(a);
}
```

The `print()` function is available in the Rhino JavaScript shell.

If we step back for a moment from imperative assumptions about repetitive processes and their interruption, we may notice that there is actually no necessary connection between repetitive process and loops.

In a functional idiom of JavaScript, we might instead write something like:

```(function streamTillInitialTen() {
var nFirst = Math.floor(Math.random() * 20);

console.log(nFirst);

if (nFirst === 10) return true;

console.log(
Math.floor(Math.random() * 20)
);

return streamTillInitialTen();
})();
```

Obtaining runs like:

```18
10
16
10
8
0
13
3
2
14
15
17
14
7
10
8
0
2
0
2
5
16
3
16
6
7
19
0
16
9
7
11
17
10```

Though returning a value composes better, and costs less IO traffic, than firing off side-effects from a moving thread:

```console.log(
(function streamTillInitialTen() {
var nFirst = Math.floor(Math.random() * 20);

if (nFirst === 10) return [10];

return [
nFirst,
Math.floor(Math.random() * 20)
].concat(
streamTillInitialTen()
);
})().join('\n')
);
```

Sample result:

```17
14
3
4
13
10
15
5
10```

## jq

With the functions defined below, the task can be accomplished using the following jq filter:

```   take( rand(20); . != 10 )

```

Here, `rand(n)` is a pseudo-random number generator, and `take(stream; cond)` will continue taking from the stream so long as the condition is satisfied. When the condition is no longer satisfied, the PRNG is immediately terminated.

Using the built-in `foreach` construct, the above is equivalent to:

```   label \$done | foreach rand(20) as \$n (null; \$n; if . == 10 then break \$done else . end)
```

PRNG

Currently, jq does not have a built-in random-number generator, so here we borrow one of the linear congruential generators defined at https://rosettacode.org/wiki/Linear_congruential_generator -

```# 15-bit integers generated using the same formula as rand()
# from the Microsoft C Runtime.
# Input: [ count, state, rand ]
def next_rand_Microsoft:
.[0] as \$count | .[1] as \$state
| ( (214013 * \$state) + 2531011) % 2147483648 # mod 2^31
| [\$count+1 , ., (. / 65536 | floor) ];

def rand_Microsoft(seed):
[0,seed]
| next_rand_Microsoft  # the seed is not so random
| recurse( next_rand_Microsoft )
| .[2];

# Generate random integers from 0 to (n-1):
def rand(n): n * (rand_Microsoft(17) / 32768) | trunc;```

"take"

```def take(s; cond):
label \$done
| foreach s as \$n (null; \$n; if \$n | cond | not then break \$done else . end);```

"count"

Since the PRNG used here is deterministic, we'll just count the number of integers generated:

`def count(s): reduce s as \$i (0; . + 1);`

Example

```   count(take(rand(20); . != 10))
```
Output:
```   12
```

## Julia

```while true
n = rand(0:19)
@printf "%4d" n
if n == 10
println()
break
end
n = rand(0:19)
@printf "%4d\n" n
end
```
Output:
```   0  11
11   7
4  19
7  19
5   2
5  17
12   5
14  18
1  10
18  14
16   0
17   1
10
```

## Kotlin

Translation of: Java
```import java.util.Random

fun main(args: Array<String>) {
val rand = Random()
while (true) {
val a = rand.nextInt(20)
println(a)
if (a == 10) break
println(rand.nextInt(20))
}
}
```

## Lambdatalk

```{def loops_break
{lambda {:n}
{if {= :n 10}
then :n -> end of loop
else :n {loops_break {round {* 20 {random}}}}}}}
-> loops_break

{loops_break 0}
-> 0 16 8 5 9 17 9 18 1 18 1 1 12 13 15 1 10 -> end of loop
```

## Lang5

`do 20 ? int dup . 10 == if break then 20 ? int . loop`

## langur

```for {
val .i = random 0..19
write .i, " "
if .i == 10 { writeln(); break }
write random(0..19), " "
}```
Output:
`13 18 14 8 0 5 17 13 9 13 6 5 13 16 6 9 11 18 10`

## Lasso

```local(x = 0)
while(#x != 10) => {^
#x = integer_random(19,0)
#x
#x == 10 ? loop_abort
', '+integer_random(19,0)+'\r'
^}
```

## Liberty BASIC

```while num<>10
num=rnd(1)*20
print num
if num=10 then exit while
print rnd(1)*20
wend```
If "integer" was meant, this code fulfils that requirement.
```while num<>10
num=int(rnd(1)*20)
print num
if num=10 then exit while
print int(rnd(1)*20)
wend```

## Lingo

```repeat while TRUE
n = random(20)-1
put n
if n = 10 then exit repeat
put random(20)-1
end repeat```

## Lisaac

```Section Header

+ name := TEST_LOOP_BREAK;

Section Public

- main <- (
+ a, b : INTEGER;

`srand(time(NULL))`;
{
a := `rand()`:INTEGER % 20; // not exactly uniformly distributed, but doesn't matter
a.print;
'\n'.print;
a == 10
}.until_do {
b := `rand()`:INTEGER % 20; // not exactly uniformly distributed, but doesn't matter
b.print;
'\n'.print;
}
);```

## LiveCode

```command loopForeverRandom
repeat forever
put random(20) - 1 into tRand
put tRand
if tRand is 10 then exit repeat
put random(20) - 1
end repeat
end loopForeverRandom```

## Lua

```repeat
k = math.random(19)
print(k)
if k == 10 then break end
print(math.random(19)
until false
```

## M2000 Interpreter

We use block of module to loop. Break also can be used, but breaks nested blocks (without crossing modules/functions). Using break in second Checkit module we break three blocks.

```Module Checkit {
M=Random(0, 19)
Print M
If M=10 then Continue  ' because loop flag is false, continue act as Exit
Print Random(0, 19)
loop
}
Checkit

Module Checkit {
do {
do {
{
M=Random(0, 19)
Print M
If M=10 then Break
Print Random(0, 19)
loop
}
Print "no print this"
} always
Print "no print this"
} always
Print "print ok"
}
Checkit```

## M4

```define(`randSeed',141592653)dnl
define(`setRand',
`define(`randSeed',ifelse(eval(\$1<10000),1,`eval(20000-\$1)',`\$1'))')dnl
define(`rand_t',`eval(randSeed^(randSeed>>13))')dnl
define(`random',
`define(`randSeed',eval((rand_t^(rand_t<<18))&0x7fffffff))randSeed')dnl
dnl
define(`loopbreak',`define(`a',eval(random%20))`a='a
ifelse(a,10,`',`define(`b',eval(random%20))`b='b
loopbreak')')dnl
dnl
loopbreak```
Output:
```a=17
b=3
a=0
b=15
a=10
```

## Maple

```r := rand( 0 .. 19 ):
do
n := r();
printf( "%d\n", n );
if n = 10 then
break
end if;
printf( "%d\n", r() );
end do:```

## Mathematica/Wolfram Language

```While[(Print[#];#!=10)&[RandomIntger[{0,19}]],
Print[RandomInteger[{0,19}]
]
```

## Maxima

```/* To exit the innermost block, use return(<value>) */

block([n],
do (
n: random(20),
ldisp(n),
if n = 10 then return(),
n: random(20),
ldisp(n)
)
)\$

/* To exit any level of block, use catch(...) and throw(<value>);
they are not used for catching exceptions, but for non-local
return. Use errcatch(...) for exceptions. */

block([n],
catch(
do (
n: random(20),
ldisp(n),
if n = 10 then throw('done),
n: random(20),
ldisp(n)
)
)
)\$

/* There is also break(<value>, ...) in Maxima. It makes Maxima
stop the evaluation and enter a read-eval loop where one can change
variable values, then return to the function after exit; For example */

block([x: 1], break(), ldisp(x));
> x: 2;
> exit;
2
```

## MAXScript

```while true do
(
a = random 0 19
format ("A: % \n") a
if a == 10 do exit
b = random 0 19
format ("B: % \n") b
)```

## min

Works with: min version 0.19.6
```randomize
(19 random puts 10 ==) (19 random puts!) () () linrec```

## МК-61/52

```СЧ	2	0	*	П0
1	0	-	[x]	x#0	18
СЧ	2	0	*	П1
БП	00	ИП0	С/П
```

## Modula-3

```MODULE Break EXPORTS Main;

IMPORT IO, Fmt, Random;

VAR a,b: INTEGER;

BEGIN
WITH rand = NEW(Random.Default).init() DO
LOOP
a := rand.integer(min := 0, max := 19);
IO.Put(Fmt.Int(a) & "\n");
IF a = 10 THEN EXIT END;
b := rand.integer(min := 0, max := 19);
IO.Put(Fmt.Int(b) & "\n");
END;
END;
END Break.
```

## MOO

```while (1)
a = random(20) - 1;
player:tell(a);
if (a == 10)
break;
endif
b = random(20) - 1;
player:tell(b);
endwhile
```

## MUMPS

```BREAKLOOP
NEW A,B
SET A=""
FOR  Q:A=10  DO
.SET A=\$RANDOM(20)
.WRITE !,A
.Q:A=10
.SET B=\$RANDOM(20)
.WRITE ?6,B
KILL A,B
QUIT
;A denser version that doesn't require two tests
NEW A,B
FOR  SET A=\$RANDOM(20) WRITE !,A QUIT:A=10  SET B=\$RANDOM(20) WRITE ?6,B
KILL A,B QUIT```
Output:
```USER>D BREAKLOOP^ROSETTA

5     3
9     13
3     12
9     19
16    4
11    17
18    2
4     18
10
USER>D BREAKLOOP+11^ROSETTA

6     13
15    3
0     8
8     18
7     13
15    10
15    13
10```

## Neko

```/**
Loops/Break in Neko
Tectonics:
nekoc loops-break.neko
neko loops-break
*/

var random = random_new();

while true {
var r = random_int(random, 20);
\$print(r, " ");

if r == 10 break;

r = random_int(random, 20);
\$print(r, " ");
}
\$print("\n");
```
Output:
```prompt\$ nekoc loops-break.neko
prompt\$ neko loops-break
0 8 17 12 4 18 7 6 19 11 13 6 12 7 6 6 6 18 14 7 18 10 15 6 9 5 4 14 10```

## Nemerle

Translation of: C#
```using System;
using System.Console;
using Nemerle.Imperative;

module Break
{
Main() : void
{
def rnd = Random();
while (true)
{
def a = rnd.Next(20);
WriteLine(a);
when (a == 10) break;
def b = rnd.Next(20);
WriteLine(b);
}
}
}
```

## NetRexx

```/* NetRexx */
options replace format comments java crossref savelog symbols nobinary

say
say 'Loops/Break'
rn = Rexx
rnd = Random()

loop label lb forever
rn = rnd.nextInt(19)
say rn.right(3)'\-'
if rn = 10 then leave lb
rn = rnd.nextInt(19)
say rn.right(3)'\-'
end lb
say
```

## NewLISP

```(until (= 10 (println (rand 20)))
(println (rand 20)))
```

## Nim

Translation of: Python
```import random

while true:
let a = random(19)
echo a
if a == 10:
break
let b = random(19)
echo b
```

## NS-HUBASIC

```10 I=RND(20)
20 PRINT I
30 IF I=10 THEN STOP
40 PRINT RND(20)
50 GOTO 10```

## Oberon-2

Works with oo2c Version 2

```MODULE LoopBreak;
IMPORT
RandomNumbers,
Out;

PROCEDURE Do();
VAR
rn: LONGINT;
BEGIN
LOOP
rn := RandomNumbers.RND(20);
Out.LongInt(rn,0);Out.Ln;
IF rn = 10 THEN EXIT END;
rn := RandomNumbers.RND(20);
Out.LongInt(rn,0);Out.Ln
END
END Do;

BEGIN
Do
END LoopBreak.
```

## Objeck

```while(true) {
a := (Float->Random() * 20.0)->As(Int);
a->PrintLine();
if(a = 10) {
break;
};
a := (Float->Random() * 20.0)->As(Int);
a->PrintLine();
}```

## OCaml

```# Random.self_init();;
- : unit = ()

# while true do
let a = Random.int 20 in
print_int a;
print_newline();
if a = 10 then raise Exit;
let b = Random.int 20 in
print_int b;
print_newline()
done;;
15
18
2
13
10
Exception: Pervasives.Exit.
```

## Octave

```while(1)
a = floor(unifrnd(0,20, 1));
disp(a)
if ( a == 10 )
break
endif
b = floor(unifrnd(0,20, 1));
disp(b)
endwhile
```

## Oforth

```while(true) [
19 rand dup print ":" print
10 == ifTrue: [ break ]
19 rand print " " print
]```

## Ol

```(import (otus random!))

(call/cc (lambda (break)
(let loop ()
(if (= (rand! 20) 10)
(break #t))
(print (rand! 20))
(loop))))
```

## ooRexx

```/*REXX ****************************************************************
* Three Ways to leave a Loop
* ooRexx added the possibility to leave an outer loop
* without using a control variable
* 12.05.2013 Walter Pachl
**********************************************************************/
do i1=1 To 2                           /* an outer loop              */
Say 'i1='i1                          /* tell where we are          */
Call random ,,123                    /* seed to be reproducable    */
do forever                           /* inner loop                 */
a=random(19)
Say a
if a=6  then leave                 /* leaces the innermost loop  */
end
end

do i2=1 To 2
Say 'i2='i2
Call random ,,123
do forever
a=random(19)
Say a
if a=6  then leave i2    /* leaves loop with control variable i2 */
end
end

Parse Version v
Select
When pos('ooRexx',v)>0 Then supported=1
Otherwise                   supported=0
End
If supported Then Do
Say 'Leave label-name is supported in' v
do Label i3 Forever
Say 'outer loop'
Call random ,,123
do forever
a=random(19)
Say a
if a=6  then leave i3          /* leaves loop with label name i3 */
end
end
End
Else
Say 'Leave label-name is probably not supported in' v
```
Output:
```i1=1
14
14
5
6
i1=2
14
14
5
6
i2=1
14
14
5
6
Leave label-name is supported in REXX-ooRexx_4.1.2(MT) 6.03 28 Aug 2012
outer loop
14
14
5
6
```

## Oz

We can implement this either with recursion or with a special type of the for-loop. Both can be considered idiomatic.

```for break:Break do
R = {OS.rand} mod 20
in
{Show R}
if R == 10 then {Break}
else {Show {OS.rand} mod 20}
end
end```

## PARI/GP

```while(1,
t=random(20);
print(t);
if(t==10, break);
print(random(20))
)```

See Delphi

## Perl

```while (1) {
my \$a = int(rand(20));
print "\$a\n";
if (\$a == 10) {
last;
}
my \$b = int(rand(20));
print "\$b\n";
}
```

## Phix

Library: Phix/basics
Translation of: Euphoria

The rand() function returns a random integer from 1 to the integer provided.

```integer i
while 1 do
i = rand(20)-1
printf(1, "%g ", {i})
if i=10 then exit end if
printf(1, "%g\n", {rand(20)-1})
end while
```
Output:
```2 10
1 7
3 16
10
```

## PHP

```while (true) {
\$a = rand(0,19);
echo "\$a\n";
if (\$a == 10)
break;
\$b = rand(0,19);
echo "\$b\n";
}
```

## PicoLisp

Literally:

```(use R
(loop
(println (setq R (rand 1 19)))
(T (= 10 R))
(println (rand 1 19)) ) )```

Shorter:

```(until (= 10 (println (rand 1 19)))
(println (rand 1 19)) )```

## Pike

```int main(){
while(1){
int a = random(20);
write(a + "\n");
if(a == 10){
break;
}
int b = random(20);
write(b + "\n");
}
}
```

## PL/I

```do forever;
k = trunc(random()*20);
put (k);
if k = 10 then leave;
k = trunc(random()*20);
put skip list (k);
end;```

## Plain English

```To run:
Start up.
Demonstrate breaking.
Wait for the escape key.
Shut down.

To demonstrate breaking:
Pick a number between 0 and 19.
Write the number to the console.
If the number is 10, break.
Pick another number between 0 and 19.
Write the other number to the console.
Repeat.

To write a number to the console:
Convert the number to a string.
Write the string to the console.```

## PostScript

```realtime srand          % init RNG
{
rand 20 mod         % generate number between 0 and 19
dup =               % print it
10 eq { exit } if   % exit if 10
} loop
```

## PowerShell

```\$r = New-Object Random
for () {
\$n = \$r.Next(20)
Write-Host \$n
if (\$n -eq 10) {
break
}
Write-Host \$r.Next(20)
}
```

## PureBasic

```If OpenConsole()

Repeat
a = Random(19)
PrintN(Str(a))
If a = 10
Break
EndIf
b = Random(19)
PrintN(Str(b))
PrintN("")
ForEver

Print(#CRLF\$ + #CRLF\$ + "Press ENTER to exit")
Input()
CloseConsole()
EndIf
```

## Python

```from random import randrange

while True:
a = randrange(20)
print(a)
if a == 10:
break
b = randrange(20)
print(b)
```

## QB64

CBTJD: 2020/03/14

```RANDOMIZE TIMER
DO
n = INT(RND * 20)
PRINT n,
IF n = 10 THEN
EXIT DO
ELSE
n = INT(RND * 20)
PRINT n
END IF
LOOP UNTIL 0
```

## Qi

```(define loop -> (if (= 10 (PRINT (random 20)))
true
(do (PRINT (random 20))
(loop))))
(loop)```

## Quackery

```[ 20 random
dup echo sp
10 = if done
20 random echo cr
again ]```
Output:
```16 9
9 14
11 16
14 13
14 17
16 19
13 11
10 ```

## R

Works with: R version 2.8.1
```sample0to19 <- function() sample(0L:19L, 1,replace=TRUE)
repeat
{
result1 <- sample0to19()
if (result1 == 10L)
{
print(result1)
break
}
result2 <- sample0to19()
cat(result1, result2, "\n")
}
```

## Racket

```#lang racket
(let loop ()
(let/ec break
(define a (random 20))
(displayln a)
(when (= a 10) (break))
(displayln (random 20))
(loop)))
```

## Raku

(formerly Perl 6)

Works with: Rakudo version #21 "Seattle"
```loop {
say my \$n = (0..19).pick;
last if \$n == 10;
say (0..19).pick;
}
```

## REBOL

```REBOL [
Title: "Loop/Break"
URL: http://rosettacode.org/wiki/Loop/Break
]

random/seed 1 ; Make repeatable.
; random/seed now ; Uncomment for 'true' randomness.

r20: does [(random 20) - 1]

forever [
prin x: r20
if 10 = x [break]
print rejoin [" " r20]
]
print ""
```
Output:
```14 11
19 15
6 11
12 11
3 14
10```

## Red

Translation of: REBOL
```Red [
Title: "Loops/Break"
URL: http://rosettacode.org/wiki/Loops/Break
]

random/seed 2 ; Make repeatable. Delete line for 'true' randomness.

r20: does [(random 20) - 1]

forever [
prin x: r20
if 10 = x [break]
print rejoin [" " r20]
]
print ""
```
Output:
```2 15
0 0
1 11
6 14
4 14
10
```

## Retro

```doc{
A couple of helper functions to make the rest of the
}doc

: rand  ( -n )  random 20 mod ;
: .  ( n- )  putn space ;

doc{
One approach is to use a simple repeat/again loop, and
a conditional exit. For instance:
}doc

: foo   ( - )
repeat rand dup . 10 = if; rand . again ;

doc{
The other approach uses a structured while loop with the
second printing handled by a conditional clause.
}doc

[ rand dup . 10 <> [ [ rand . ] ifTrue ] sip ] while```

## REXX

```/*REXX program demonstrates a    FOREVER   DO  loop  with a test to    LEAVE   (break). */
/*REXX's RANDOM BIF returns an integer.*/
do forever                                   /*perform loop until da cows come home.*/
a=random(19)                                 /*same as:    random(0, 19)            */
call charout , right(a, 5)                   /*show   A   right─justified, column 1.*/
if a==10  then leave                         /*is random #=10?  Then cows came home.*/
b=random(19)                                 /*same as:    random(0, 19)            */
say right(b, 5)                              /*show   B   right─justified, column 2.*/
end   /*forever*/                            /* [↑]  CHAROUT , xxx   writes to term.*/
/*stick a fork in it,  we're all done. */
```
output:

(A long run was chosen)

```    1    0
16    3
8   15
11    8
12   14
15    4
0    0
6   11
15    5
14    0
18   16
15    0
14    5
3    5
9    4
4    4
17    6
4   10
6    2
9   13
12    6
14   16
17    0
8    6
9    2
0    6
9    9
12    8
11    3
11    4
7    1
3   13
4    8
14   14
14   13
12    7
1    0
16   15
8   19
12    7
18    9
7   18
19   13
6    2
6    7
2    1
8    2
9    7
6   13
19   15
10
```

## Ring

```while true
a = random(20)
see a + nl
if a = 10 exit ok
end```

## Ruby

```loop do
a = rand(20)
print a
if a == 10
puts
break
end
b = rand(20)
puts "\t#{b}"
end
```

or

```loop do
print a = rand(20)
puts or break if a == 10
puts "\t#{rand(20)}"
end
```
Output:
```0       4
11      0
8       2
12      13
3       0
6       9
2       8
12      10
8       17
12      6
10
```

## Rust

Library: rand
```// cargo-deps: rand

extern crate rand;

fn main() {
loop {
let num = rng.gen_range(0, 20);
if num == 10 {
println!("{}", num);
break;
}
println!("{}", rng.gen_range(0, 20));
}
}
```

## SAS

```data _null_;
do while(1);
n=floor(uniform(0)*20);
put n;
if n=10 then leave;    /* 'leave' to break a loop */
end;
run;
```

## Sather

```-- help class for random number sequence
class RANDOM is
attr seed:INT;

create(seed:INT):SAME is
res:RANDOM := new;
res.seed := seed;
return res;
end;
-- this code is taken from rand's man (C)
next:INT is
seed := seed * 1103515245 + 12345;
return (seed/65536) % 32768;
end;
end;

class MAIN is
main is
a, b :INT;
rnd:RANDOM := #(1);
loop
a := rnd.next % 20;
#OUT + a + "\n";
if a = 10 then break!; end; -- here we break
b := rnd.next % 20;
#OUT + b + "\n";
end;
end;
end;```

## Scala

```scala> import util.control.Breaks.{breakable, break}
import util.control.Breaks.{breakable, break}

scala> import util.Random
import util.Random

scala> breakable {
|   while(true) {
|     val a = Random.nextInt(20)
|     println(a)
|     if(a == 10)
|       break
|     val b = Random.nextInt(20)
|     println(b)
|   }
| }
5
4
10
```

## Scheme

```(let loop ((first (random 20)))
(print first)
(if (not (= first 10))
(begin
(print (random 20))
(loop (random 20)))))
```

Or by using call/cc to break out:

```(call/cc
(lambda (break)
(let loop ((first (random 20)))
(print first)
(if (= first 10)
(break))
(print (random 20))
(loop (random 20)))))
```

## Scilab

Works with: Scilab version 5.5.1
```while %T
a=int(rand()*20)  // [0..19]
printf("%2d ",a)
if a==10 then break; end
b=int(rand()*20)
printf("%2d\n",b)
end
printf("\n")
```
Output:
``` 4 15
0  6
13 12
16 13
17  1
11 13
14  3
10
```

## Seed7

Seed7 has no goto statement and hidden gotos like break- and continue-statements are also omitted. But this is not a problem. All programs with break-statements can be rewritten as structured programs without break. Usually structured programs have better readability. If you are used to it writing programs without goto (and break) is easy. The example below shows how easy a break can be avoided in this exercise. The loop ends, if the first random number is 10. The second random number does never terminate the loop.

```\$ include "seed7_05.s7i";

const proc: main is func
local
var integer: number is 0;
begin
repeat
number := rand(0, 19);
writeln(number);
if number <> 10 then
writeln(rand(0, 19));
end if;
until number = 10;
end func;```

## Sidef

```var lim = 20;
loop {
say (var n = lim.rand.int);
n == 10 && break;
say lim.rand.int;
}
```

## Simula

Works with: SIMULA-67
```! Loops/Break - simula67 - 08/03/2017;
begin
integer num,seed;
seed:=0;
while true do
begin
num:=randint(1,20,seed);
outint(num,2); outimage;
if num=10 then goto lab;
end;
lab:
end```
Output:
``` 1
9
8
10
```

## Smalltalk

Works with: Smalltalk/X
```[
|first second done|

first := Random nextIntegerBetween:0 and:19.
Stdout print:first; cr.
(done := (first == 10)) ifFalse:[
second := Random nextIntegerBetween:0 and:19.
Stdout print:' '; print:second; cr.
].
done
] whileFalse
```

alternative:

```[:exit |
|first|

Stdout printCR: (first := Random nextIntegerBetween:0 and:19).
first == 10 ifTrue:[ exit value:nil ].
Stdout print:' '; printCR: (Random nextIntegerBetween:0 and:19).
] loopWithExit.
```

or shorter (because ifTrue: sends #value to its arg):

```[:exit |
|first|

Stdout printCR: (first := Random nextIntegerBetween:0 and:19).
first == 10 ifTrue:exit.
Stdout print:' '; printCR: (Random nextIntegerBetween:0 and:19).
] loopWithExit.
```

## Snabel

Uses a ranged random generator as iterator.

```let: rnd 19 random;

@rnd {
\$ str say
10 = &break when
@rnd pop str say
} for```

## SNOBOL4

Most Snobols lack a built-in rand( ) function. Kludgy "Linux-only" implementation:

```	input(.random,io_findunit(),1,"/dev/urandom")
while	&ALPHABET random @rand
output = rand = rand - (rand / 20) * 20
eq(rand,10)	 :f(while)
end
```

Or using a library function:

```* rand(n) -> real x | 0 <= x < n
-include 'random.sno'

loop    ne(output = convert(rand(20)'integer'),10) :s(loop)
end```

## Spin

Works with: BST/BSTC
Works with: FastSpin/FlexSpin
Works with: HomeSpun
Works with: OpenSpin
```con
_clkmode = xtal1 + pll16x
_clkfreq = 80_000_000

obj
ser : "FullDuplexSerial.spin"

pub main | r, s
ser.start(31, 30, 0, 115200)

s := 1337 ' PRNG seed

repeat
r := ||?s // 20
ser.dec(r)
ser.tx(32)
if r == 10
quit
r := ||?s // 20
ser.dec(r)
ser.tx(32)

waitcnt(_clkfreq + cnt)
ser.stop
cogstop(0)```
Output:
```8 13 1 7 19 1 15 16 9 6 5 9 1 15 5 0 6 3 9 19 8 9 10
```

## SPL

Direct approach:

```>
n = #.rnd(20)
#.output(n)
<< n=10
n = #.rnd(20)
#.output(n)
<```

With reusable code:

```>
:1
n = #.rnd(20)
#.output(n)
<-
<< n=10
1 <->
<```

## SQL PL

Works with: Db2 LUW
version 9.7 or higher.

With SQL PL:

```--#SET TERMINATOR @

SET SERVEROUTPUT ON@

BEGIN
DECLARE VAL INTEGER;
LOOP: WHILE (TRUE = TRUE) DO
SET VAL = INTEGER(RAND() * 20);
CALL DBMS_OUTPUT.PUT_LINE(VAL);
IF (VAL = 10) THEN
LEAVE LOOP;
END IF;
SET VAL = INTEGER(RAND() * 20);
CALL DBMS_OUTPUT.PUT_LINE(VAL);
END WHILE LOOP;
END @```

Output:

```db2 -td@
db2 => SET SERVEROUTPUT ON@
DB20000I  The SET SERVEROUTPUT command completed successfully.
db2 => BEGIN
...
db2 (cont.) => END @
DB20000I  The SQL command completed successfully.

4
16
9
1
10
```

Since V11.1, the builtin module can be used instead of RAND, like this:

`SET VAL = CALL DBMS_RANDOM.VALUE(0,20);`

## Stata

```while 1 {
local n=runiformint(0,19)
display `n'
if `n'==10 continue, break
display runiformint(0,19)
}
```

### Mata

```for (; 1; ) {
printf("%f\n",n=runiformint(1,1,0,19))
if (n==10) break
printf("%f\n",runiformint(1,1,0,19))
}
```

## Suneido

```forever
{
Print(i = Random(20))
if i is 10
break
Print(i = Random(20))
}```

## Swift

```while true
{
let a = Int(arc4random()) % (20)
print("a: \(a)",terminator: "   ")
if (a == 10)
{
break
}
let b = Int(arc4random()) % (20)
print("b: \(b)")
}
```
Output:
```a: 2   b: 7
a: 16   b: 13
a: 18   b: 16
a: 10
```

## Tcl

```while true {
set a [expr int(20*rand())]
puts \$a
if {\$a == 10} {
break
}
set b [expr int(20*rand())]
puts \$b
}
```

## TI-89 BASIC

```Local x
Loop
rand(20)-1 → x
Disp x                     © new line and text
If x = 10 Then
Exit
EndIf
Output 64, 50, rand(20)-1  © paint text to the right on same line
EndLoop```

## TorqueScript

```for(%a = 0; %a > -1; %a++)
{
%number = getRandom(0, 19);
if(%number == 10)
break;
}```

## Transact-SQL

```DECLARE @i INT;
WHILE 1=1
BEGIN
SET @i = ABS(CHECKSUM(NewId())) % 20;
PRINT @i;
IF @i=10 BREAK;
PRINT ABS(CHECKSUM(NewId())) % 20;
END;```

## TUSCRIPT

```\$\$ MODE TUSCRIPT
LOOP
a=RANDOM_NUMBERS (0,19,1)
IF (10==a) THEN
PRINT "a=",a
STOP
ELSE
b=RANDOM_NUMBERS (0,19,1)
PRINT "a=",a," b=",b
ENDIF
IF (10==a,b) STOP
ENDLOOP```
Output:
```a=0 b=17
a=11 b=13
a=3 b=16
a=17 b=13
a=8 b=11
a=8 b=0
a=6 b=2
a=10
```

```Do
n = RND(20)
Print n
Until n = 10
Print RND(20)
Loop
```

## UNIX Shell

This script gets random numbers from jot(1). If there is any error with jot(1), the script exits.

Works with: Bourne Shell
Library: jot
```while true; do
a=`jot -w %d -r 1 0 20` || exit \$?
echo \$a
test 10 -eq \$a && break
b=`jot -w %d -r 1 0 20` || exit \$?
echo \$b
done
```

Korn Shells have a RANDOM parameter.

Works with: Bash
Works with: pdksh version 5.2.14
```while true; do
echo \$((a=RANDOM%20))
[ \$a -eq 10 ] && break
echo \$((b=RANDOM%20))
done
```

## Ursa

Translation of: Python
```decl ursa.util.random r
decl int a b
while true
set a (r.getint 19)
out a endl console
if (= a 10)
break
end while
set b (r.getint 19)
out b endl console
end while```

## VBA

```Public Sub LoopsBreak()
Dim value As Integer
Randomize
Do While True
value = Int(20 * Rnd)
Debug.Print value
If value = 10 Then Exit Do
Debug.Print Int(20 * Rnd)
Loop
End Sub
```

## VBScript

Based on BASIC version. Demonstrates breaking out of Do/Loop and For/Next (Exit is good for getting out of functions and subs as well).

```Dim a, b, i

Do
a = Int(Rnd * 20)
WScript.StdOut.Write a
If a = 10 Then Exit Do
b = Int(Rnd * 20)
WScript.Echo vbNullString, b
Loop

For i = 1 To 100000
a = Int(Rnd * 20)
WScript.StdOut.Write a
If a = 10 Then Exit For
b = Int(Rnd * 20)
WScript.Echo vbNullString, b
Next
```

## Visual Basic .NET

Translation of: C#
```Module Program
Sub Main()
' Initialize with seed 0 to get deterministic output (may vary across .NET versions, though).
Dim rand As New Random(0)

Do
Dim first = rand.Next(20) ' Upper bound is exclusive.
Console.Write(first & " ")

If first = 10 Then Exit Do

Dim second = rand.Next(20)
Console.Write(second & " ")
Loop
End Sub
End Module
```
Output:
`14 16 15 11 4 11 18 8 19 5 5 9 12 9 19 0 17 19 13 6 16 16 19 0 13 10 18 13 10 `

## Vlang

```import rand
import rand.seed

fn main() {
rand.seed(seed.time_seed_array(2))
for {
a := rand.intn(20)?
println(a)
if a == 10 {
break
}
b := rand.intn(20)?
println(b)
}
}```

## Wren

```import "random" for Random

var r = Random.new()
while (true) {
var n = r.int(20)
System.print(n)
if (n == 10) break
System.print(r.int(20))
}
```
Output:

A (mercifully short) sample run:

```1
0
13
16
2
0
10
```

## XBasic

Works with: Windows XBasic
```PROGRAM "loopbreak"

IMPORT "xst" ' for XstGetSystemTime

DECLARE FUNCTION Entry()

' Pseudo-random number generator
' Based on the rand, srand functions from Kernighan & Ritchie's book
' 'The C Programming Language'
DECLARE FUNCTION Rand()
DECLARE FUNCTION SRand(seed%%)

FUNCTION Entry()
XstGetSystemTime (@msec)
SRand(INT(msec) MOD 32768)
DO
a%% = Rand() MOD 20
PRINT FORMAT\$("##", a%%);
IF a%% = 10 THEN EXIT DO
b%% = Rand() MOD 20
PRINT FORMAT\$(" ##", b%%)
LOOP
PRINT
END FUNCTION

' Return pseudo-random integer on 0..32767
FUNCTION Rand()
#next&& = #next&& * 1103515245 + 12345
END FUNCTION USHORT(#next&& / 65536) MOD 32768

' Set seed for Rand()
FUNCTION SRand(seed%%)
#next&& = seed%%
END FUNCTION

END PROGRAM
```
Output:
```17  3
3  8
9  7
18  5
4  0
9 16
0 19
5 18
12 16
1  1
10
```

## XBS

```while(true){
set n:number = math.random(0,19);
log(`first: {n}`);
if(n==10){stop}
n = math.random(0,19);
log(`second: {n}`);
}```
Output:
```first: 0
second: 13
first: 11
second: 10
first: 16
second: 3
first: 8
second: 19
first: 7
second: 10
first: 10
```

## XPL0

```include c:\cxpl\codes;
int N;
loop    [N:= Ran(20);
IntOut(0, N);
if N=10 then quit;
ChOut(0, 9\tab\);
IntOut(0, Ran(20));
CrLf(0);
]```
Output:
```7       17
13      2
2       10
0       4
2       9
15      15
14      19
10
```

## Yabasic

```do
i = int(ran(19))
print i using "##";
print "  ";
if i = 10 then break : fi
i = int(ran(19))
print i using "##", "  ";
loop
print
end```

## Zig

```const std = @import("std");

pub fn main() !void {
const RndGen = std.rand.DefaultPrng;
var rnd = RndGen.init(42);
// possible improvement: make rng fair
var rand_num1: u5 = undefined;
var rand_num2: u5 = undefined;
while (true) {
rand_num1 = rnd.random().int(u5) % 20;
try std.io.getStdOut().writer().print("{d}\n", .{rand_num1});
if (rand_num1 == 10)
break;
rand_num2 = rnd.random().int(u5) % 20;
try std.io.getStdOut().writer().print("{d}\n", .{rand_num2});
}
}
```

## zkl

```while(1){n:=(0).random(20); n.print("  ");
if (n==10){ println(); break; } (0).random().println();
}```
Output:
```7  2139341079
4  3217334923
18  2050357211
2  2061361000
10
```