Variadic templates

[Bill Baxter]

Walter Bright wrote:
> Craig Black wrote:
> 
>> This feature seems to supercede older versions of variadic functions.  
>> Are there still reasons to use the older approach to variadics?  If 
>> not, should any of the older approaches ever be deprecated in order to 
>> simplify the D language?
> 
> 
> That's a very good question, and I don't know the answer. writefln()'s 
> current implementation may be obsolete. But it's premature to write its 
> obituary. Let's see how things unfold a bit first.

Definitely too early to kill runtime variadics just because there are 
now compile time ones.  writefln is an especially good example of why 
not.  In a stdio heavy app it can get called in thousands of different 
ways with different combination of argument types.  Do you really want 
each of those to be a separately instantiated function?  It may run 
slightly faster but the code size will be huge.  No, writefln 
definitely still has a place as-is.

--bb