On Sat, 25 Feb 2012 17:12:50 +0100, Timon Gehr <timon.g...@gmx.ch> wrote:
On 02/24/2012 07:22 PM, simendsjo wrote:
I have a C function taking a callback function as a parameter. My
thought was to wrap this up using a template, but I cannot get it to
work:
extern(C) alias void function() Callback;
template Wrap(alias dg)
{
extern(C) void Wrap()
{
dg();
}
}
void main()
{
Callback cb = &Wrap!( () {} );
}
Error: cannot implicitly convert expression (&Wrap) of type void
delegate() pure nothrow @safe to extern (C) void function()
This is a bug. '() {}' should be inferred as void function()pure nothrow
@safe. Workaround: The code compiles if you use function() {} instead. I
don't know if a bug report exists already.
Thanks. http://d.puremagic.com/issues/show_bug.cgi?id=7585
