On Thursday, 9 May 2013 at 12:35:29 UTC, Meta wrote:
then add "if (!__ctfe) assert(0);" to guarantee it will never
be used in real run-time.
I don't think I've ever seen __ctfe before. Is it specific to
DMD?
It is documented here : http://dlang.org/function.html
"The __ctfe boolean pseudo-variable, which evaluates to true at
compile time, but false at run time, can be used to provide an
alternative execution path to avoid operations which are
forbidden at compile time. Every usage of __ctfe is evaluated
before code generation and therefore has no run-time cost, even
if no optimizer is used"
So no, it is quite official and not specific to dmd.
