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submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 19 points 9 months ago (1 children)

Because exit might be a variable you use to determine if you should exit. exit() is a function that actually does the exiting.

It’s the difference between pointing at a jogger and saying “run” and actually running after them.

[–] [email protected] 17 points 9 months ago (2 children)

If you have a variable called exit you've overwritten the function in that scope, and won't be able to execute it.

e.g.

>>> exit=1
>>> exit()
Traceback (most recent call last):
  File "", line 1, in 
TypeError: 'int' object is not callable
>>>

[–] [email protected] 17 points 9 months ago

Reminds me of setting pi = 3 in my friends matlab subroutines in school.

[–] [email protected] 5 points 9 months ago

wow it does do that. cool