On Saturday, 23 August 2025 at 12:50:40 UTC, Brother Bill wrote:
On page 530 of Programming in D, we have this code snippet:
What section of the book?
Compiled with DMD yielding error messages:
```
c:\dev\D\71 -
80\c78_3k_alias_template_opCall_overload\source\app.d(5):
Error: template instance `caller!o` template `caller` is not
defined
caller!o();
^
c:\dev\D\71 -
80\c78_3k_alias_template_opCall_overload\source\app.d(7):
Error: template instance `caller!(()
{
writeln("Function literal called.");
}
)` template `caller` is not defined
caller!({ writeln("Function literal called."); })();
^
```
What is needed to get this code to compile?
My only idea is that a #import statement is missing.
I'm not aware of any template function called `caller` - perhaps
it is defined in the book somewhere?
