[Issue 1475] allow to use intrinsic math functions (e.g. trigonometry) in CTFEs
sean at f4.ca
Wed Sep 5 15:18:41 PDT 2007
d-bugmail at puremagic.com wrote:
> ------- Comment #2 from wbaxter at gmail.com 2007-09-05 16:10 -------
> Of course you can already do this by writing your own CTFE functions to
> approximate those via Taylor series and the like. One of the first CTFE demos
> was a compile-time sqrt function.
> But yeh, the compiler has access to a better way to evaluate those functions
> than running what amounts to an interpreted language, so it would be nice to be
> able to access it.
It was my impression that CTFE relies on a fancy version of constant
folding, which doesn't make support for any special routines or plugins
a really natural fit. And while it seems like a potentially interesting
feature to add, I wonder whether there might be issues related to cross
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