diff --git a/include/numeric b/include/numeric
index 14a6615..8c0bc4d 100644
--- a/include/numeric
+++ b/include/numeric
@@ -50,6 +50,9 @@
     OutputIterator
     adjacent_difference(InputIterator first, InputIterator last, OutputIterator result, BinaryOperation binary_op);
 
+template <class ForwardIterator, class T>
+    void iota(ForwardIterator first, ForwardIterator last, T value);
+
 }  // std
 
 */
@@ -178,6 +181,15 @@
     return __result;
 }
 
+template <class _ForwardIterator, class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __value)
+{
+    for (; __first != __last; ++__first, ++__value)
+        *__first = __value;
+}
+
 _LIBCPP_END_NAMESPACE_STD
 
 #endif  // _LIBCPP_NUMERIC