------- Additional Comments From baldrick at free dot fr 2005-01-12 23:52
-------
Subject: Re: Overlapping memcpy with big struct copies (ACATS c64106a)
> This can be reproduced with the following C example:
> struct A
> {
> int a[1024];
> };
> void g(struct A *a, struct A *b)
> {
> *a = *b;
> }
> struct A c;
> int main(void)
> {
> g(&c, &c);
> }
If the source and destination are identical, does it matter if memcpy is
used? That said, ACATS tests cxa4009 and cxa4020 have overlapping memcpy's
where the source and destination are not identical (ACATS c95087a is the same
as c64106a: identical source and destination).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19410
