On 07/11/2012 04:33 PM, Harrison, John wrote:
Is it currently possible to call a var arg function, say printf, from
rust? Or is there a recommended work around at the moment for doing so?
It is not possible in general, though declaring and using varargs
functions without the vararg argument works (it's just not very useful).
The workaround I use is to define a little file called glue.c to wrap
the varargs call, then statically link it to the crate.
Statically linking just works, more or less, so if I have glue.a and my
Rust code, project.rs contains:
extern mod glue {
my_printf(f: *c_str, i: int);
}
Then calling `rustc -L . project.rs` should work.
-Brian
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