[Bf-blender-cvs] [c76ed1781b9] functions: method to fill an ArrayRef

[Jacques Lucke]

Commit: c76ed1781b9a7c0985c810b69ee24419a019bc3b
Author: Jacques Lucke
Date:   Sat Jun 8 13:28:35 2019 +0200
Branches: functions
https://developer.blender.org/rBc76ed1781b9a7c0985c810b69ee24419a019bc3b

method to fill an ArrayRef

===================================================================

M	source/blender/blenlib/BLI_array_ref.hpp
M	tests/gtests/blenlib/BLI_array_ref_test.cc

===================================================================

diff --git a/source/blender/blenlib/BLI_array_ref.hpp b/source/blender/blenlib/BLI_array_ref.hpp
index 7f6c11a0808..c30016b2a03 100644
--- a/source/blender/blenlib/BLI_array_ref.hpp
+++ b/source/blender/blenlib/BLI_array_ref.hpp
@@ -72,6 +72,11 @@ template<typename T> class ArrayRef {
     return this->slice(0, this->size() - n);
   }
 
+  void fill(const T &element)
+  {
+    std::fill_n(m_start, m_size, element);
+  }
+
   T *begin() const
   {
     return m_start;
diff --git a/tests/gtests/blenlib/BLI_array_ref_test.cc b/tests/gtests/blenlib/BLI_array_ref_test.cc
index c9a764ee9f6..4ff819bf797 100644
--- a/tests/gtests/blenlib/BLI_array_ref_test.cc
+++ b/tests/gtests/blenlib/BLI_array_ref_test.cc
@@ -147,3 +147,15 @@ TEST(array_ref, FromArray)
   EXPECT_EQ(a_ref[0], 5);
   EXPECT_EQ(a_ref[1], 6);
 }
+
+TEST(array_ref, Fill)
+{
+  std::array<int, 5> a = {4, 5, 6, 7, 8};
+  IntArrayRef a_ref(a);
+  a_ref.fill(1);
+  EXPECT_EQ(a[0], 1);
+  EXPECT_EQ(a[1], 1);
+  EXPECT_EQ(a[2], 1);
+  EXPECT_EQ(a[3], 1);
+  EXPECT_EQ(a[4], 1);
+}