ADDED   src/0dev.org/ioutil/ioutil.go
Index: src/0dev.org/ioutil/ioutil.go
==================================================================
--- /dev/null
+++ src/0dev.org/ioutil/ioutil.go
@@ -0,0 +1,18 @@
+// Package ioutil contains various constructs for io operations
+package ioutil
+
+// An function alias type that implements io.Writer
+type WriterFunc func([]byte) (int, error)
+
+// Delegates the call to the WriterFunc while implementing io.Writer
+func (w WriterFunc) Write(b []byte) (int, error) {
+	return w(b)
+}
+
+// An function alias type that implements io.Reader
+type ReaderFunc func([]byte) (int, error)
+
+// Delegates the call to the WriterFunc while implementing io.Reader
+func (r ReaderFunc) Read(b []byte) (int, error) {
+	return r(b)
+}

ADDED   src/0dev.org/ioutil/ioutil_test.go
Index: src/0dev.org/ioutil/ioutil_test.go
==================================================================
--- /dev/null
+++ src/0dev.org/ioutil/ioutil_test.go
@@ -0,0 +1,47 @@
+package ioutil
+
+import (
+	diff "0dev.org/diff"
+	"bytes"
+	"testing"
+)
+
+func TestWriter(t *testing.T) {
+	var (
+		input  []byte = []byte{0, 1, 2, 3, 4, 5, 6, 7}
+		output []byte
+
+		reader *bytes.Reader = bytes.NewReader(input)
+		buffer bytes.Buffer
+	)
+
+	reader.WriteTo(WriterFunc(buffer.Write))
+	output = buffer.Bytes()
+
+	// Diff the result against the initial input
+	delta := diff.Diff(diff.D{len(input), len(output),
+		func(i, j int) bool { return input[i] == output[j] }})
+	if len(delta.Added) > 0 || len(delta.Removed) > 0 {
+		t.Error("Differences detected ", delta)
+	}
+}
+
+func TestReader(t *testing.T) {
+	var (
+		input  []byte = []byte{0, 1, 2, 3, 4, 5, 6, 7}
+		output []byte
+
+		reader *bytes.Reader = bytes.NewReader(input)
+		buffer bytes.Buffer
+	)
+
+	buffer.ReadFrom(ReaderFunc(reader.Read))
+	output = buffer.Bytes()
+
+	// Diff the result against the initial input
+	delta := diff.Diff(diff.D{len(input), len(output),
+		func(i, j int) bool { return input[i] == output[j] }})
+	if len(delta.Added) > 0 || len(delta.Removed) > 0 {
+		t.Error("Differences detected ", delta)
+	}
+}