Returning arrays and expressions

[Niels_M]

Hi guys

I have to non-related questions. I am learning C from K&R.

1) Do K&R ever say that functions in C cannot return arrays? I am not doubting this claim, but I just do not recall having read this in their book.

2) Is there a precise definition of an expression?

Best,
Niles.

[laserlight]

2) Is there a precise definition of an expression?

Yes:

An expression is a sequence of operators and operands that specifies computation of a value, or that designates an object or a function, or that generates side effects, or that performs a combination thereof.

[Niels_M]

Wow, 5 minutes.. that was fast. Thanks.

So a function call is an expression because it "generates side effects"?

[laserlight]

So a function call is an expression because it "generates side effects"?

Yes, and of course it also involves operands with the function call operator.