...struct Array(T)
{
  T* ptr;
  size_t length;
  
  ref auto opIndex(size_t i...

...size_t x, size_t y)
    {
        return array[x * dim + y];
    }

    auto opIndexAssign(size_t...

... ref T opIndex(size_t i) => ptr[i];
  auto opSlice(size_t beg, size_t...

...is:

```d
class MyRoot : void {
	void opRCWriteBarrier(size_t fieldOffset, void* pointer) {
		myCyclicDetector.set(cast...

...import std.algorithm: any, canFind;
     		
     string[] _names;
     size_t len = 19;
     char[] invalid = (cast(char...

...import std.algorithm: any, canFind;
    		
    	string[] _names;
    	size_t length = 20;
    	char[] invalid = (cast(char...

...import std.algorithm: any, canFind;
    		
    	string[] _names;
    	size_t length = 20;
    	char[] invalid = (cast(char...

...stdc.stdlib;
        import std.algorithm: any, canFind;
       		
	size_t length = 20;
	char[] invalid = (cast(char...

...false;
		}
	}
	return true;
}
size_t numRequiredArguments(alias FUNC)() pure @safe nothrow {
	size_t numReq = 0...

...asked for size bytes, and malloc gave you size bytes. It doesn't "know" anything...