Harti Brandt <[EMAIL PROTECTED]> wrote:
>
>
> Hmm, I though the following would work:
>
> void
> foo(unsigned short *s)
> {
> unsigned short temp;
>
> temp = s[0];
> s[0] = s[1];
> s[1] = temp;
> }
>
> main()
> {
> int i = 0x12345678;
>
> foo(&i);
> printf("%08x\n", i);
> }
>
> because how would the compiler in main() know, that you do something wrong
> in foo(). But... if you compile this with -O5, it does not work! This is
> because the compiler inlines foo() into main and the program prints junk like
> 0x12342804.
Nope - that doesn't work either. The call to foo() is not compatible
with the prototype (in fact, the Systems/C compiler issues a warning
on this:
Warning #2034: passing argument 1 from incompatible pointer type
I believe gcc would as well.
- Dave Rivers -
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