Is there a d analog of strncmp?

[Adam D. Ruppe via Digitalmars-d-learn]

int strncmp(string a, string b, int n) {
	if(a.length > n)
		a = a[0 .. n];
	if(b.length > n)
		b = b[0 .. n];
	import std.algorithm.comparison : cmp;
	return cmp(a, b);
}