template specialization for arrays

[J Arrizza]

On Sat, Oct 29, 2011 at 4:14 PM, Andrei Alexandrescu <
SeeWebsiteForEmail at erdani.org> wrote:

>
> What's wrong with isStaticArray? Also, OP may want to look at
> isNarrowString.
>
>
> Andrei
>

Tried isStaticArray:

void abc(T:U[], U) (T parm1)
  if (isDynamicArray!T)
  {
  writeln("dynamic array : ", parm1);
  }
void abc(T:U[], U) (T parm1)
  if (isStaticArray!T)
  {
  writeln("static array : ", parm1);
  }


It didn't match. The output was:

simpleparm: 1
dynamic array : str
dynamic array : [1, 2]
simpleparm: [3, 4]


isNarrowString isn't in the traits online doc. Looked it up in std/traits.d
and I tried it:

void abc(T) (T parm1)
  if (isNarrowString!T)
  {
  writeln("string : ", parm1);
  }
void abc(T:U[], U) (T parm1)
  if (isDynamicArray!T)
  {
  writeln("dynamic array : ", parm1);
  }


and get compiler ambiguity for abc("str") between the two templates above.

John
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