diff --git a/unitest.layout b/unitest.layout
new file mode 100644
index 0000000..cc573fb
--- /dev/null
+++ b/unitest.layout
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_layout_file>
+	<FileVersion major="1" minor="0" />
+	<ActiveTarget name="Debug" />
+	<File name="histogram_internal.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="216" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="doctest.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="110023" topLine="2364" />
+		</Cursor>
+	</File>
+	<File name="histogram.cpp" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="245" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="unitest.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="895" topLine="0" />
+		</Cursor>
+	</File>
+</CodeBlocks_layout_file>