sizeof() return type ?
Ian Lance Taylor
iant@google.com
Thu Jun 22 20:07:00 GMT 2006
Darryl Miles <darryl-mailinglists@netbauds.net> writes:
> This one is taxing me, what is the correct type returned by the built
> in sizeof() operator ?
>
> int ?
> unsigned int ?
> size_t ?
> ssize_t ?
This is a general C question, not a gcc question. As such, it should
probably go to a mailing list about C, not to a mailing list
specifically about gcc. Thanks.
The answer is that sizeof returns a value of type size_t.
> Where does size_t and ssize_t originate from ? ANSI/stdio ?
I believe size_t was introduced in the ISO C90 standard. I believe
that ssize_t was introduced in the second edition of the POSIX 1003.1
standard (1003.1-1996).
Ian
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