3 files changed, 74 insertions, 3 deletions
diff --git a/source/tanya/algorithm/mutation.d b/source/tanya/algorithm/mutation.d
index 425718b..46ded92 100644
--- a/source/tanya/algorithm/mutation.d
+++ b/source/tanya/algorithm/mutation.d
@@ -388,3 +388,76 @@ do
 
     assert(copy(source[], target).value == 5);
 }
+
+/**
+ * Fills $(D_PARAM range) with $(D_PARAM value).
+ *
+ * Params:
+ *  Range = Input range type.
+ *  Value = Filler type.
+ *  range = Input range.
+ *  value = Filler.
+ */
+void fill(Range, Value)(Range range, Value value)
+if (isInputRange!Range && isAssignable!(ElementType!Range, Value))
+{
+    static if (!isDynamicArray!Range && is(typeof(range[] = value)))
+    {
+        range[] = value;
+    }
+    else
+    {
+        for (; !range.empty; range.popFront())
+        {
+            range.front = value;
+        }
+    }
+}
+
+///
+@nogc nothrow pure @safe unittest
+{
+    import tanya.algorithm.comparison : equal;
+
+    int[6] actual;
+    const int[6] expected = [1, 1, 1, 1, 1, 1];
+
+    fill(actual[], 1);
+    assert(equal(actual[], expected[]));
+}
+
+// [] is called where possible
+@nogc nothrow pure @system unittest
+{
+    static struct Slice
+    {
+        bool* slicingCalled;
+
+        int front() @nogc nothrow pure @safe
+        {
+            return 0;
+        }
+
+        void front(int) @nogc nothrow pure @safe
+        {
+        }
+
+        void popFront() @nogc nothrow pure @safe
+        {
+        }
+
+        bool empty() @nogc nothrow pure @safe
+        {
+            return true;
+        }
+
+        void opIndexAssign(int) @nogc nothrow pure @safe
+        {
+            *this.slicingCalled = true;
+        }
+    }
+    bool slicingCalled;
+    auto range = Slice(&slicingCalled);
+    fill(range, 0);
+    assert(slicingCalled);
+}
diff --git a/source/tanya/container/array.d b/source/tanya/container/array.d
index 4d58650..2501fad 100644
--- a/source/tanya/container/array.d
+++ b/source/tanya/container/array.d
@@ -16,7 +16,6 @@ module tanya.container.array;
 
 import core.checkedint;
 import std.algorithm.mutation : bringToFront,
-                                fill,
                                 initializeAll,
                                 uninitializedFill;
 import tanya.algorithm.comparison;
@@ -25,7 +24,7 @@ import tanya.exception;
 import tanya.memory;
 import tanya.meta.trait;
 import tanya.meta.transform;
-import tanya.range.primitive;
+import tanya.range;
 
 /**
  * Random-access range for the $(D_PSYMBOL Array).
diff --git a/source/tanya/math/mp.d b/source/tanya/math/mp.d
index 5ee1f39..b7eb86b 100644
--- a/source/tanya/math/mp.d
+++ b/source/tanya/math/mp.d
@@ -14,7 +14,6 @@
  */
 module tanya.math.mp;
 
-import std.algorithm.mutation : fill;
 import tanya.algorithm.comparison;
 import tanya.algorithm.iteration;
 import tanya.algorithm.mutation;