what if we put return 1 in main function eg int main () { • • • • • • • • return 1; }

Answer 1

dude...don't ask soo small things...try it out yourself...

Answer 2

That returns 1 to the operating system indicating that the program had an error (as every non 0 value).

Answer 3

you can put anything for an error

Answer 4

Can you? As far as I know the convention to signal an error via return code is to return a non-zero value. The basic Linux tools actually have different return code which signal different errors.

Answer 5

it returns value of main

Answer 6

it will return error of runtime (if any)!!!