On Monday, 1 October 2012 at 22:47:48 UTC, Timon Gehr wrote:
A D compiler is also a D interpreter. I wouldn't even bother
with D if this wasn't the case.
A D compiler _contains_ a limited interpreter for constant
expression evaluation. This has limitations such as not being
able to perform IO at compile-time (there's a special pragma for
that). This is merely an outgrowth of a compiler optimization
technique.
Now, back on topic:
I agree with Jonathan - in general the compiler can't evaluate
_all_ functions at-compile time due these limitations of CTFE and
adding a compiler flag will make compilation times far worse than
c++. Adding a function attribute adds marginal benefit over
simply assigning to a static/enum variable.
