Template instance does not match template declaration

[Marc]

On Friday, 15 August 2025 at 12:20:16 UTC, Sergey wrote:
> On Friday, 15 August 2025 at 12:02:19 UTC, Marc wrote:
>> Hello,
>> I'm trying to declare a templated member function that takes a 
>> value of size_t N. A simple example to reproduce what Im 
>> trying to do is the following:
>>
>> ```d
>> import std.stdio;
>> void getCol(N: size_t)() {
>>    return N;
>> }
>>
>> void main() {
>>    // Call
>>    writeln(getCol!0());
>> }
>> ```
>> I get the following error: `Error: template instance 
>> `getCol!0` does not match template declaration `getCol(N : 
>> ulong)()`
>>    writeln(getCol!0());
>>            ^
>> Error dmd failed with exit code 1.`
>>
>> Can anyone please help me getting it to work?
>
> D doesn't use ":" for types
> ```d
> import std;
>
> size_t getCol(size_t N)() {
>    return N;
> }
>
> void main() {
>    // Call
>    writeln(getCol!0());
> }
> ```

Thanks for your reply. It solved my problem.