On 2/27/18 3:00 PM, Steven Schveighoffer wrote:
On 2/27/18 12:32 PM, Atila Neves wrote:
There's a common case where it's not equivalent - when the pointer is
null. Imagine I have a C function I want to call:
extern(C) void fun(int* things);
Imagine also that it's ok to call with null. Well, now I can't use a
slice to call this and have it be 1) @safe and 2) not throw
RangeError. I ran into this the other way.
fun(x.length ? &x[0] : null);
Hm... borrowing from Timothee's suggestion:
@trusted @nogc pure nothrow
T* pointer(T)(T[] a){
return a.length > 0 ? a.ptr : null;
}
This would be fine and @safe, but may not be useful for all purposes.
However, it would fix your issue.
-Steve
