Re: C++ PATCH: PR 16405

[Mark Mitchell <mark at codesourcery dot com>]

Richard Henderson wrote:
> On Thu, Dec 23, 2004 at 12:12:45AM -0800, Mark Mitchell wrote:
>
> > + 	      && (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (pointer, 0)))
> > + 		  == TYPE_MAIN_VARIANT (TREE_TYPE (*from_p))))
>
>
> lang_hooks.types_compatible_p?

I couldn't convince myself this was safe.
> > + extern "C"
> > + void *memcpy (void *dest, const void *src, __SIZE_TYPE__ n)
> > + {
> > +   ++i;
> > + }
>
>
> Does the testcase really start up?  

I forgot the dg-do run (I'll fix shortly), but I'm not sure that's what 
you mean.

> In some cases you'll wind
> up invoking this memcpy before we even get to main.  See the
> sort of contortions we go through in gcc.c-torture/execute/builtins/
> for testing this sort of thing.

That's why I set i to zero in main.

--
Mark Mitchell
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