----
import std.stdio;
void foo1(void function(void*) fp) { }
void foo2(void function(int) fp) { }
void foo3(void*) { }
void main()
{
foo1((void* ptr) => ( assert(ptr is null) ));
foo2((int a) => ( a + 1 )); /// Fails: Error: function foo2
(void function(int) fp) is not callable using argument types (int
function(int a) pure nothrow @safe)
foo1(&foo3);
void foo4(void function(void*) fp) { }
foo1(&foo4); /// Fails: Error: function foo1 (void
function(void*) fp) is not callable using argument types (void
delegate(void function(void*) fp))
}
----
Can someone explain that to me?
