Program stuck in Infinite loop

Question

My program is going in infinite loop and does not print required output please help anyone

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Remy Lebeau · Accepted Answer · 2021-11-21T06:51:53.470

On the 2nd and subsequent iterations of the outer while loop, space will be initialized with a non-zero value, and then the while(space) loop will keep incrementing space for a long time until it overflows to a negative value, and then keep looping for a long time further until space eventually increments to 0, finally breaking the loop. When an int is evaluated as a boolean, only 0 evaluates as false, all other values evaluate as true. And a 32bit int can hold 4294967296 unique values (-2147483648..2147483647), giving the illusion that your loop is infinite.

score 1 · Answer 2 · answered Nov 21 '21 at 06:49

while(space)
{
    std::cout << ' ';
    space = space + 1;
}

When space is 1, this loop will increment i, so it keeps looping. It will loop until space overflow, and increment until space is 0

You probably want:

while(space)
{
    std::cout << ' ';
    --space;
}

Program stuck in Infinite loop

2 Answers2