C Language Tutorials by Ghulam Murtaza Dahar - HTML preview

Output

Enter operator +, -, * or / :

/

Enter two operators:

34

3

num2/num1=11.33

Notice break statement at the end of each case, which cause switch...case statement to exit. If break statement are not used, all statements below that case statement are also executed.

C Programming goto Statement

In C programming, goto statement is used for altering the normal sequence of program execution by transferring control to some other part of the program.

Syntax of goto statement

goto label;

.............

.............

.............

label:

statement;

In this syntax, label is an identifier. When, the control of program reaches to goto statement, the control of the program will jump to the label: and executes the code/s after it.

Example of goto statement

/* C program to demonstrate the working of goto statement.*/

# include <stdio.h>

int main(){

float num,average,sum;

int i,n;

printf("Maximum no. of inputs: ");

scanf("%d",&n);

for(i=1;i<=n;++i){

printf("Enter n%d: ",i);

scanf("%f",&num);

if(num<0.0)

goto jump; /* control of the program jumps to label jump */

sum=sum+num;

}

jump:

average=sum/(i-1);

printf("Average: %.2f",average);

return 0;

}