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Diffstat (limited to 'src/main/java/org/zwobble/couscous/util/NaturalNumbers.java')
-rw-r--r--src/main/java/org/zwobble/couscous/util/NaturalNumbers.java24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/couscous/util/NaturalNumbers.java b/src/main/java/org/zwobble/couscous/util/NaturalNumbers.java
new file mode 100644
index 0000000..1a4b284
--- /dev/null
+++ b/src/main/java/org/zwobble/couscous/util/NaturalNumbers.java
@@ -0,0 +1,24 @@
+package org.zwobble.couscous.util;
+
+import java.util.Iterator;
+
+public class NaturalNumbers implements Iterable<Integer> {
+ public static final Iterable<Integer> INSTANCE = new NaturalNumbers();
+
+ @Override
+ public Iterator<Integer> iterator() {
+ return new Iterator<Integer>() {
+ private int next = 0;
+
+ @Override
+ public boolean hasNext() {
+ return true;
+ }
+
+ @Override
+ public Integer next() {
+ return next++;
+ }
+ };
+ }
+}