On Wed, 09 May 2012 12:17:30 -0400, Gor Gyolchanyan
<[email protected]> wrote:
I didn't know structs actually have an "is" operator. Good to know,
there's a way to memcmp them this way.
But being able to overload it wouldn't do any damage. The overloader
of "is" should clearly know, that "is" is an identity check and not an
arbitrary domain-specific equality check.
Overloading "is" gives a syntax sugar for nullable structures and an
optimization opportunity for large ones (for example a CRC checksum
comparison).
The fact that it's not overloadable is useful in many situations. There
are certain cases you are truly looking for physical equality, and not
logical equality.
Generally, if you want logical equality, use opEquals.
-Steve
