Debugging CTFE

[Matthias Walter]

Koroskin Denis Wrote:

> On Tue, 17 Jun 2008 20:04:25 +0400, Matthias Walter  
> <Matthias.Walter at st.ovgu.de> wrote:
> 
> > Hello,
> >
> > I have written some compile time executable functions with D 1.0 which  
> > work in runtime but hang (and allocate memory without end) at  
> > compile-time. Is there a way to debug this further? Can one print stuff  
> > out? (Don't know if writefln works at compile-time, as I'm using Tango)  
> > Can I somehow get a stack trace of the functions called?
> >
> > best regards
> > Matthias Walter
> 
> You can use pragma(msg, "hello there!") to output some text at compile  
> time.

This only helps for templates, as their "running" is instanciation, which lets the pragma print different stuff depending on the template parameters. In CTFE-functions, you can thus only print fixed messages, but nothing like "I'm here, arg1 - " ~ arg1