What is the best declaration type for a string like parameter?

[tsbockman via Digitalmars-d-learn]

On Thursday, 28 January 2016 at 17:32:31 UTC, Gary Willoughby 
wrote:
> On Thursday, 28 January 2016 at 15:10:38 UTC, Adam D. Ruppe 
> wrote:
>> On Thursday, 28 January 2016 at 13:36:46 UTC, Puming wrote:
>>> I searched the forum and found that people use 
>>> `const(char)[]` or `in char[]` to accept both string and 
>>> char[] arguments.
>>
>> There's also the hyper-generic signatures Phobos uses like
>>
>> void foo(S)(S s) if(isSomeString!S)
>
> Yep, this is your answer.
>
> void foo(S)(S s) if(isSomeString!S)
> {
>     //use s
> }
>
> Call normally as it can implicitly determine the type of S:
>
> foo("bar");

Template bloat awaits those who take this approach to every 
problem. In practice, `in char[]` is probably better for most 
code.