#void test(int i=__LINE__) { printf("%i",i);}
#void main() {
#  test(); // prints 1
#}

It would be really handy if the __LINE__ default parameter value would be evaluated at the line containing the call. This way we can mimic those C logging macros.

Is there currently any way to do this without writing __LINE__, __FUNC__ on every call?

L.

Lionello Lunesu wrote:
> #void test(int i=__LINE__) { printf("%i",i);}
> #void main() {
> #  test(); // prints 1
> #}
> 
> It would be really handy if the __LINE__ default parameter value would be evaluated at the line containing the call. This way we can mimic those C logging macros.
> 
> Is there currently any way to do this without writing __LINE__, __FUNC__ on every call?
> 
> L.

Indeed, this would be nice if possible. For the function name, I think this can be done with Don Clugston's meta library, meta.nameof should do the trick:
"Given any D symbol (class, template, function, module name, or non-local variable) or any D type, convert it to a compile-time string literal, optionally containing the fully qualified and decorated name."

This feature would be great to have, especially when throwing Exceptions in debug mode. Ideally, this should work for __FILE__, __LINE__ and __FUNC__.


Lionello Lunesu wrote:

> #void test(int i=__LINE__) { printf("%i",i);}
> #void main() {
> #  test(); // prints 1
> #}
> 
> It would be really handy if the __LINE__ default parameter value would be evaluated at the line containing the call. This way we can mimic those C logging macros.
> 
> Is there currently any way to do this without writing __LINE__, __FUNC__ on every call?
> 
> L.