Is there a similar instruction to Break in C prog

ravi

Hi,
   I would like to know if there is an equivalent statement to that of Break statement in c language?

For example consider the for loop in a c program

for(i=0;i<10;i++)
{
   if(i==5)
   break;
}
when i is equal to 5 the for loop exits.How can I do the same in a RAPID program?

RussD

RETURN;

ravi

Hi,
    I am using it in Main routine.As soon as return is executed the program pointer goes to the first instruction of the main.What I want is when return is executed it has to exit the for loop.
For example consider the below mentioned program

1    MODULE TestProgram
2    !This program for testing purpose
3    var num i1;
4    var num j1;
5    var num ww{3,4};
6    PROC main()
7    TPErase;
 
8    FOR j1 FROM 1 TO 5 DO
9    if j1=3 THEN

10  TPWrite"first for loop"NUM:=j1;
11  RETURN;
12  endif
13  if j1=4 THEN
14  TPWrite"second for loop"NUM:=j1;
15   ENDIF
16  ENDFOR
17  TPWrite""Num:=j1;
18  ENDPROC
19  ENDMODULE

If i use a  return statement in line number 11,the program goes to the first instruction.But my requirement is that i has to exit the for loop when the instruction at line number 11 is executed.After that instruction at line number 17 has to be executed.Is there a way to do this??
Ravi

RussD

Break your program up into procedure or function calls that return you back into main.

eiven

Try

1    MODULE TestProgram
2    !This program for testing purpose
3    var num i1;
4    var num j1;
5    var num ww{3,4};

    PROC Loop()
     FOR j1 FROM 1 TO 5 DO

       if j1=3 THEN

        TPWrite"first for loop"NUM:=j1;

        RETURN;

      endif

      if j1=4 THEN

        TPWrite"second for loop"NUM:=j1;

      ENDIF

    ENDFOR

   ENDRPOC

6    PROC main()
7    TPErase;
      Loop;
17  TPWrite""Num:=j1;
18  ENDPROC
19  ENDMODULE

Main routine will call "loop" routine.
When j1 = 3 the "loop" will reutrn PP to Main,  line "17".
J1 will never reach 4 thus never display "second for loop"

/eiven

Marcel

Hi

The j1 is declaired two times. Once inside the FOR ... ENDFOR and once outside with var num j1. So you will not see the the last value of j1 from inside the loop in line 17. It will only show the start value, witch is not declaired.

The solution with RETURN should work.

 

An other solution:

     FOR j1 FROM 1 TO 5 DO
       IF j1<=3 THEN
         if j1=3 THEN
          TPWrite"first for loop"NUM:=j1;
         endif

         if j1=4 THEN
           TPWrite"second for loop"NUM:=j1;
         ENDIF
       ENDIF
    ENDFOR

 

An other solution:

     IF j1=0;
     WHILE j1<5 DO

         j1:=j1+1;
         if j1=3 THEN
          TPWrite"first for loop"NUM:=j1;

          j1:=5;
         endif

         if j1=4 THEN
           TPWrite"second for loop"NUM:=j1;
         ENDIF
    ENDWHILE

Best regards

Marcel

lemster68

Greetings all,

I think that the critical part to getting this to work past line 11 is the fact that the value of j1 is only present within the FOR NEXT loop.  Each time you reenter the loop, the value of j1 is reinitialized.  You should then maybe look at storing the j1 value in another persistant variable before exiting and then upon reentry, initialize j1 as the value of the persistant variable.  Good luck,