Added `ReplaceNth` list operation

* as its name implies this function replaces the _nth_ element of a given list
* added appropriate test case

1 files changed, 23 insertions, 0 deletions

diff --git a/src/list/operation/replace_nth.h b/src/list/operation/replace_nth.h
new file mode 100644
index 0000000..519a040
--- /dev/null
+++ b/src/list/operation/replace_nth.h
@@ -0,0 +1,23 @@
+#ifndef TYPEASVALUE_SRC_LIST_OPERATION_REPLACE_NTH_H_
+#define TYPEASVALUE_SRC_LIST_OPERATION_REPLACE_NTH_H_
+
+#include "list/operation/concatenate.h"
+#include "list/operation/take.h"
+#include "list/operation/drop.h"
+
+namespace tav {
+
+template <
+	typename Index,
+	typename Value,
+	typename Sequence
+>
+using ReplaceNth = Concatenate<List<
+	Take<Index, Sequence>,
+	List<Value>,
+	Drop<Add<Index, Size<1>>, Sequence>
+>>;
+
+}
+
+#endif  // TYPEASVALUE_SRC_LIST_OPERATION_REPLACE_NTH_H_