using fork() in c and getting different outputs while using '\n' . what is the difference? even the pid of these are ambigous

Asked Jan 10 '20 at 05:08

Active Jan 10 '20 at 05:38

Viewed 25 times

i was implementing the fork command and came across this, why '\n' creating so much difference. i am getting different output if use \n. please have a run of this code

#include<stdio.h>
int main()
{
    printf("hello %d\n ", getpid());
    fork();
printf("news %d \n", getpid());
return 0;
}

#include<stdio.h>
int main()
{
    printf("hello %d ", getpid());
    fork();
printf("news %d", getpid());
return 0;
}

output1:

hello 4750
news 4750 
news 4751

output2:

hello 4812 news 4812 hello 4812 news 4813

edited Jan 10 '20 at 05:38

ikegami

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asked Jan 10 '20 at 05:08

Naresh Kumar

1

Please add the output you're getting to the question – Denis Sheremet Jan 10 '20 at 05:10
1

Is this one of those "Spot the difference" questions? If it is, I've failed, because I can see **no** difference between the two 'halves' of your code! – Adrian Mole Jan 10 '20 at 05:11
You seem to have presented two copies of the same program, which is not useful. But what would be useful is the two *different* programs whose outputs you are comparing. And properly formatted, please. As presented, your code is unnecessarily difficult to read. – John Bollinger Jan 10 '20 at 05:12
i have added the output – Naresh Kumar Jan 10 '20 at 05:14
it's nothing like spot the difference. i was getting different output – Naresh Kumar Jan 10 '20 at 05:15
Yoy've probably copied the same program two times. I assume it has to have no `\n` in the second one. – Denis Sheremet Jan 10 '20 at 05:15
@JohnBollinger it was by mistake. i corrected it – Naresh Kumar Jan 10 '20 at 05:16

using fork() in c and getting different outputs while using '\n' . what is the difference? even the pid of these are ambigous

0 Answers0