C Programming - Control Instructions - Discussion

After the break statement, It will come out of the loop. Then it will not going to print IndiaBix.

ITS SIMPLE:

As soon as x reaches value 5.

The block with "break" is executed which cause the compiler to abandon the loop and HENCE ANY OF ITS FURTHER ITERATIONS (EVEN THE STATEMENT AFTER BREAK IN SAME BLOCK).

What will be the Output of this program and How?

#include<stdio.h>
#include<conio.h>
void main()
{
int a=5,b=10;
while(++a || ++b)
{
printf("%d %d",a,b);
break;
}
getch();
}

Up to the x<5 condition the else statement is executed. But when x=5 then else statement is executed, but in else statement break statement is there.

Because of this execution is stop and loop is terminated. And printf function is not executed.

Thus "IndiaBix" will not print.

When condition will satisfy means x<5 is true then break statement will be executed. And then control will not transfer on printf statement.

The condition x<5 is true until x=5, so the true block executed. The code after the continue statement(including printf("IndiaBIX");) will not executed and go to increment step(x++). Again the loop is continued.

When x=5, then else block executed, it has break statement, So loop is terminated.

Thus "IndiaBix" Will never get printed.

#include<stdio.h>
int main()
{
int b=5;
int c= ((b++) + (++b) + (++b) + (++b));
printf("%d",c);
return 0;
}


I think the output will be 5+7+8+9 = 29.

Generally continue is used to skip the statements and break is used to terminate the statements.

When continue is executed then control is passed back to the condition and when break is executed control will come out of loop body.

So here in the above program till x=-1 to 4 continue will be executed and control will be passed back to loop condition.

Now when x becomes 5, the if condition becomes false and it will come to else part without executing continue statement. In else part we have break statement.

So when break will be executed, control will come out of the loop body (i.e rest of the statements will be terminated i.e. printf statement) and hence prinntf will not be executed.

If this program having print statement outside the main then it will print one time.

Otherwise if in else part break will not be there then it will print. We have to write this prog in different way then it will print.

0 times print because---x value initialized with -1 and it is <=10 now the control enter into loop it checks the if condition it is also satisfied (i.e <5).

Then it executes the statement continue. Now the control will go to the for loop and again incremented this during these iterations the control will never goes to the print statement after some iterations if conditions fails then the control goes to the break then the loop will break again x value incremented and if condition fails, goes to break and process repeats during these iterations also the control never goes to the print statement.