GO TO Statement in C Programming | C Programming

GO TO Statement in C Programming    

The goto statement is simple statement used to transfer the program control unconditionally from one    statement to another statement. Although it might not be essential to use the goto statement in a highly    structured language like C, there may be occasions when the use of goto is desirable.       

Syntax              

a> b>               
goto label; label:            
 ………… …………             
………… …………             
………… …………             
Label: goto label;            
 Statement;    

    The goto requires a label in order to identify the place where the branch is to be made. A label is a


valid variable name followed by a colon. The label is placed immediately before the statement where the control is to be transformed. A program may contain several goto statements that transferred to the same place when a program. The label must be unique.  Control can be transferred out of or within a compound statement, and control can be transferred to the beginning of a compound statement. However, the control cannot be transferred into a compound statement. The goto statement is discouraged in C, because it alters the sequential flow of logic that is the characteristic of C language.       

Sample Code  

#include<stdio.h>    //include stdio.h header file to your program           

int main ()    //start of main          

{          

     int n, sum = 0, i = 0;   // variable declaration          

     printf ("Enter a number");   // message to the user          

      scanf ("%d", &n);   //Read and store the number           

     loop: i++;    //Label of goto statement          

     sum += i;    //the sum value in stored and I is added to sum          

      if (i < n) 

  goto loop;   //If value of I is less than n pass control to loop           

      printf ("\n Sum of %d natural numbers = %d", n, sum);   //print the sum    

return 0;      

 }

OUTPUT

GO TO Statement

        

Comments

Post a Comment

Subscribe Us and Thanks for visiting blog.

Popular posts from this blog

C Program for SCAN Disk Scheduling Algorithm | C Programming

Image
Introduction to SCAN disk scheduling :                    In the SCAN algorithm, the disk arm starts at one end of the disk and moves toward the other end, servicing requests as it reaches each cylinder, until it gets to the other end of the disk. At the other end, the direction of the head movement is reversed, and servicing continues. The head continuously scans back and forth across the disk. The SCAN algorithm is sometimes called the elevator algorithm, since the disk arm behaves just like an elevator in a building, first servicing all the requests going up and then reversing to service requests the other way.
Read more

C program to Find Cartesian Product of Two Sets | C programming

Image
C program to find the Cartesian Product of two sets   Cartesian product  is a mathematical operation that returns a set (or  product set  or simply  product ) from multiple sets. That is, for sets  A  and  B , the Cartesian product  A  ×  B  is the set of all ordered pairs  ( a ,  b )  where  a  ∈  A  and  b  ∈  B . Products can be specified using set-builder notation, e.g. {\displaystyle A\times B=\{\,(a,b)\mid a\in A\ {\mbox{ and }}\ b\in B\,\}.}
Read more

C Program To Check The String Is Valid Identifier Or Not | C Programming

Image
C Program To Check The String Is Valid Identifier Or Not #include <stdio.h> #include <conio.h> #include <string.h> int main () { char string [ 25 ]; int count= 0 ,flag; printf ( "Enter any string: " ); gets (string); if ( ( string [ 0 ]>= 'a' && string [ 0 ]<= 'z' )||( string [ 0 ]>= 'A' && string [ 0 ]<= 'Z' )||( string [ 0 ]== '_' )) {     for ( int i= 1 ;i<= strlen (string);i++)     {         if (( string [i]>= 'a' && string [i]<= 'z' )||( string [i]>= 'A' && string [i]<= 'Z' )||( string [i]>= '0' && string [i]<= '9' )||( string [i]== '-' ))     {     count++;     }        }     if (count== strlen (string))     {       flag= 0 ;     } } else {     flag= 1 ; } if (flag== 1 )     printf ( " %s is not valid identifier" ,string); else     printf ( " %s is valid ident
Read more