An input range. The elements must be mutable and initializable. Narrow srings are not considered as validate input parameter.
A number equal to the count of elements that are different from their initializer.
int[] i = [0,0,1]; assert(i.mutatedCount == 1); assert(i[0..$-1].mutatedCount == 0); string[] s = ["","a"]; assert(s.mutatedCount == 1); dchar[] dc = [dchar.init, 'g']; assert(dc.mutatedCount == 1); class Foo {} Foo[] f = new Foo[](8); assert(f.mutatedCount == 0); f[0] = new Foo; f[1] = new Foo; assert(f.mutatedCount == 2); // w/char.init leads to decoding invalid UTF8 sequence static assert(!is(typeof(mutatedCount!(char[])))); static assert(!is(typeof(mutatedCount!(wchar[])))); static assert(is(typeof(mutatedCount!(dchar[]))));
Indicates how many elements of a range are different from the default element value.