On 15/04/12 14:29, Stewart Gordon wrote:
On 15/04/2012 04:10, Mehrdad wrote:
Why is complex being phased out?
What happened to all this? http://dlang.org/cppcomplex.html
There was a brief discussion about it back in 2008
http://www.digitalmars.com/d/archives/digitalmars/D/Replacing_built-in_complex_What_s_this_about_81214.html
My impression was that the plan is to deprecate it once the stuff in
std.complex is complete. std.complex has clearly grown since that
discussion, but it still needs a pure imaginary type (and I don't know
what else at the moment).
I absolutely do not think it does. There is nothing you can do with a
pure imaginary type that you cannot do with a complex type.
Furthermore, the imaginary numbers have the unfortunate property of not
being closed under multiplication and division, which is troublesome for
generic code:
ireal x;
x *= x; // boom
It seems nobody noticed, but I did in fact rewrite all of std.complex
two years ago (almost to the day) in preparation for the deprecation of
the built-in types. If there is anything missing from the module, I
will be happy to add it.
-Lars
