BLI: add Vector/Array.fill methods

source/blender/blenlib/BLI_array.hh

@@ -268,6 +268,14 @@ class Array {
     return size_ == 0;
   }
 
+  /**
+   * Copies the given value to every element in the array.
+   */
+  void fill(const T &value) const
+  {
+    initialized_fill_n(data_, size_, value);
+  }
+
   /**
    * Get a pointer to the beginning of the array.
    */

source/blender/blenlib/BLI_vector.hh

@@ -702,6 +702,14 @@ class Vector {
     return this->first_index_of_try(value) != -1;
   }
 
+  /**
+   * Copies the given value to every element in the vector.
+   */
+  void fill(const T &value) const
+  {
+    initialized_fill_n(begin_, this->size(), value);
+  }
+
   /**
    * Get access to the underlying array.
    */