Error: func(const(A) a) is not callable using argument types (const(A)

[Daniel Kozak via Digitalmars-d-learn]

It seems there are two different ImVec2 types. So ImVec2 is not same as ImVec2
:)

On Tue, May 30, 2017 at 12:09 PM, Andrew Edwards via Digitalmars-d-learn <
digitalmars-d-learn at puremagic.com> wrote:

> What does that even mean?
>
> Scenario:
>
> bool func(const ImVec2 label_size)
> {
>     return true;
> }
>
> void main()
> {
>     //first attempt:
>     const ImVec2 label_size = CalcTextSize(label.ptr, null, true);
>     //Error: cannot implicitly convert expression
> (CalcTextSize(cast(immutable(char)*)label, null, true, -1F)) of type
> ImVec2 to const(ImVec2)
>
>     //second attempt
>     const ImVec2 label_size = cast(const)CalcTextSize(label.ptr, null,
> true);
>     // Error: cannot implicitly convert expression
> (CalcTextSize(cast(immutable(char)*)label, null, true, -1F)) of type
> const(ImVec2) to const(ImVec2)
>
>     //third attempt
>     const auto label_size = CalcTextSize(label.ptr, null, true);
>     //Okay: don't know why the other two didn't work but I can keep going
> for now
>
>     func(label_size);
>     //Error: function imgui_d.func (const(ImVec2) label_size) is not
> callable using argument types (const(ImVec2))
> }
>
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