-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday 09 October 2008 11:32 am, Sebastian Redl wrote:
dariomt@gmail.com wrote:
I see that operator== and operator!= are implemented comparing the pointer inside the shared_ptr's using get(), but operator< uses _internal_less, that does a different thing.
I thought that operator< would also be implemented using get(), so please, can you share the rationale behind the need for _internal_less?
get() returns px (the raw pointer), _internal_less compares pn (the shared_count).
This is peculiar, since it means that alias pointers to different subobjects would compare non-equal, but sort equivalent. I'd like to know the rationale of this, too.
There is a rationale in n1590. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFI7ig05vihyNWuA4URAnEWAJ9e9flIoOH1blxeeYJxMD2DlaC3VQCeJjM6 AGjr+bUlqqbhvV8lLAbSn1k= =9C0j -----END PGP SIGNATURE-----