inout(type) or inout(type)? - ...ing logging 4.0

http://www.digitalmars.com/d/2.0/function.html

inout(int)[] foo(inout(int)[] a, int x, int y) { return a[x .. y]; }

ふむ．

import std.stdio;

inout(int)[] f(inout(int)[] a, int x, int y)
{
	return a[x .. y];
}

void main()
{
	auto b = f([1,2,3,4,5,6,7][], 1, 3);
	writeln(b);
}

hello.d(10): Error: function hello.f (inout(int)[] a, int x, int y) is not callable using argument types (int[],int,int)
hello.d(10): Error: cannot implicitly convert expression ([1,2,3,4,5,6,7][]) of type int[] to inout(int)[]

んー？

import std.stdio;

inout(int[]) f(inout(int[]) a, int x, int y)
{
	return a[x .. y];
}

void main()
{
	auto b = f([1,2,3,4,5,6,7][], 1, 3);
	writeln(b);
}