Re: Completing C code with D style

[Salih Dincer via Digitalmars-d-learn]

On Wednesday, 3 November 2021 at 20:36:08 UTC, russhy wrote:
I don't understand why you guys offer OP such 
complicate/bloated examples, it'll only make things confusing 
and slow down compilation time with templates and imports, this 
is not needed at all

I don't like complicated things either. Additional facilities are 
interminable in D :)

For example:

```d
import std.stdio, std.algorithm, std.array;

int main() {
        auto numbers = [-3, 14, 47, -49, -30, 15, 4, -82, 99, 26];
        char negativity, even;

Start:
        bool error;

        enum sign { negatives = 'n', positives = 'p', both = 'b' }
	write("Would you like in list (n=negatives, p=positives, 
b=both)? ");
        readf(" %c", &negativity);

        switch (negativity) with(sign) {
                case negatives:
                        numbers = filter!("a < 0")(numbers).array;
                        break;
                case positives:
                        numbers = filter!("a > 0")(numbers).array;
                        break;
                case both:
                break;
                default:
                        error = true;
                        goto Error;
        }
        
        enum type { evens = 'e', odds = 'o', both = 'b' }
        write("Would you like in list (e=evens, o=odds, b=both)? ");
        readf(" %c", &even);

        switch (even) with(type) {
                case evens:
                        numbers = filter!("!(a % 2)")(numbers).array;
                        break;
                case odds:
                        numbers = filter!("a & 1")(numbers).array;
                        break;
                case both:
                break;
                default:
                        error = true;
        }

Error:
        if(error) {
                "Error...".writeln;
                goto Start;
        } else writef("%(%s\n%)", numbers);

        return 0;
}
```
Please try to use auto...