Compiling a template

[albertas-jn]

On Friday, 7 December 2018 at 01:21:42 UTC, Ali Çehreli wrote:

> There is no trace of the template in the library or the object 
> file. You can investigate the compiled symbols with e.g. the 
> 'nm' tool on Linux systems:
>
> // deneme.d:
> void foo(T)(T t) {
>     import std.stdio;
>     writeln(t);
> }
>
> void main() {
>     // foo(42);
> }
>
> $ dmd deneme.d -lib
> $ nm deneme.a | grep foo
>
> No trace of foo... Now uncomment the line in main and repeat:
>
> $ dmd deneme.d -lib
> $ nm deneme.a | grep foo
>                  U _D6deneme__T3fooTiZQhFNfiZv
> 0000000000000000 W _D6deneme__T3fooTiZQhFNfiZv
>
> "W" indicates a definition.

I see, what confused me was that if I put main() in a different 
file and

$ dmd main.d deneme.a

the program compiled properly. Now I realize that in this case 
deneme.a file was ignored and the source file was used instead. I 
expected an error. Thank you for your answers.