C standard libraries

[CJS]

> It is in core.stdc. For example:
>
> import core.stdc.stdio; // <stdio.h>
> import core.stdc.stdlib;// <stdlib.h>
>
> etc.
>

Thanks! I'm confused why that module isn't mentioned in the  
library reference page.

What's the difference between core.stdc and std.c? The docs do 
refer to core.stdc, though std.c.stdio in Phobos' source just 
imports core.stdc.stdio. The duplication seems a bit weird, and 
I'm wondering if one method is deprecated or migth be removed in 
the future.