Discussion Thread: DIP 1036--String Interpolation Tuple Literals--Community Review Round 2

[Steven Schveighoffer]

On 1/29/21 3:02 AM, Walter Bright wrote:
> On 1/28/2021 8:47 PM, Adam D. Ruppe wrote:
>> D excels at these things.
> 
> Ok, it's doable, but it's writing your own printf to do these 
> manipulations.

It's doing what you want because it's possible. When someone says "yeah 
but I can't do this", and I say "OK, here's a wrapper I wrote in 15 
minutes that does what you want" and you say "But that means I need a 
wrapper!", I don't really know where to go from here. You asked for 
something that works with printf, I gave it to you. If you don't like 
it, I don't know what to say, but it's trivially easy and can be inlined 
to a direct call.

What if I complained that @safe feature is unusable because I had to 
wrap the OS `read` as a @trusted function? Would that be a reasonable 
argument? It requires a simple wrapper, write it and be done. Or don't 
use @safe code.

In fact DIP1027 CANNOT make an overload for printf that's usable in D 
code, and the existing printf can't be used with strings (ironically the 
default specifier for DIP1027) without horrible syntax.

If you want to use printf without a wrapper, use printf as it was 
intended. If you want to use printf with interpolation strings, use a 
trivial wrapper.

-Steve