Allow Explicit Pointer for Auto Declaration
Steven Schveighoffer via Digitalmars-d
digitalmars-d at puremagic.com
Thu Sep 29 17:05:45 PDT 2016
On 9/29/16 7:42 PM, Jacob wrote:
> Was wondering if this feature could be implemented, right now auto needs
> to be written like this:
>
> auto pValue = someFunctionReturnsRef(); // forgot '&', still valid
> // makes a copy when we
> didn't want one
>
> The feature would make the code look like this:
>
> auto* pValue = someFunctionReturnsRef(); // error expecting pointer
>
> We don't accidentally make a copy when we wanted a pointer. C++ has a
> similar semantic for it's auto.
Hm... I'm not familiar with C++ auto, but C++ does have local
references. D does not.
I'm not sure if you are asking for the syntax specified, or asking for
the original line to be treated like the specified syntax. The latter
absolutely is not going to happen, because that breaks valid code.
Even if we added:
auto* pValue = expr;
I don't see why this is more advantageous than:
auto pValue = &expr;
-Steve
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