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SubjectRe: __attribute__((unused))
On Fri, 15 Oct 2004, Frank van Maarseveen wrote:

> This makes sense, assuming the gcc info pages are correct:
> `unused'
> This attribute, attached to a function, means that the function is
> meant to be possibly unused. GCC will not produce a warning for
> this function. GNU C++ does not currently support this attribute
> as definitions without parameters are valid in C++.
>
> `used'
> This attribute, attached to a function, means that code must be
> emitted for the function even if it appears that the function is
> not referenced. This is useful, for example, when the function is
> referenced only in inline assembly.
>
> So, a function could be "used" and "unused" at the same time:
>
> unused -> don't warn
> used -> don't discard

Except that "used" already implies no warning as it makes the function
not unused anymore.

Maciej
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