• Andrey (5/8) Mar 13 2021 where Data and Word - structs.
• Andrey (2/6) Mar 13 2021
• Steven Schveighoffer (5/11) Mar 13 2021 Yeah, D does not allow (without a switch) passing an rvalue (i.e. a

Andrey <saasecondbox yandex.ru> writes:

Hello,
Dmd gives an error:
 Error: function `_setPastBases(ref const(Data) item, ref 
 const(Word!(wstring, wstring)) base)` is not callable using 
 argument types `(const(Data), Word!(wstring, wstring))

where Data and Word - structs.

What happens and how to pass arguments?

Ldc compiles without such error.

Andrey <saasecondbox yandex.ru> writes:

Mistake. It says about simple argument:
 cannot pass rvalue argument `xxxxx` of type `Word!(wstring, 
 wstring)` to parameter `ref const(Word!(wstring, wstring)) base`

Function:
 void _setPastBases(const ref Data item, const ref UsualWord 
 base)

Steven Schveighoffer <schveiguy gmail.com> writes:

On 3/13/21 5:24 PM, Andrey wrote:
 Mistake. It says about simple argument:
 cannot pass rvalue argument `xxxxx` of type `Word!(wstring, wstring)` 
 to parameter `ref const(Word!(wstring, wstring)) base`

 
 Function:
 void _setPastBases(const ref Data item, const ref UsualWord base)


Yeah, D does not allow (without a switch) passing an rvalue (i.e. a 
temporary) into a reference.

There is a preview switch for it, I think -preview=rvaluerefparam

-Steve