On Thu, 28 Feb 2008, Jamie Lokier wrote:

> If the argument is fetched in curl_easy_setopt using `va_arg(ap,long)', then
> the code may be actually buggy on 64-bit architectures.
>
> The caller may pass a 32-bit value on the stack, and the callee parse a
> 64-bit value from the stack, so 32 bits of the value seen in the callee can
> be garbage. In this case, if you passed FALSE, the callee might interpret
> it as TRUE instead. Not what you want, a real bug.

Yes, and it is in fact a bit curious that this hasn't bitten us more. Why is
that? Do 64bit archs typically pass on 64bit values on the stack?

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