[Bf-blender-cvs] [da3d297b3f3] functions: subscript operator for range

[Jacques Lucke]

Commit: da3d297b3f3dc89c67a78b2aa3bf97eb705e4323
Author: Jacques Lucke
Date:   Sun Apr 28 17:50:44 2019 +0200
Branches: functions
https://developer.blender.org/rBda3d297b3f3dc89c67a78b2aa3bf97eb705e4323

subscript operator for range

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

M	source/blender/blenlib/BLI_range.hpp
M	tests/gtests/blenlib/BLI_range_test.cc

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

diff --git a/source/blender/blenlib/BLI_range.hpp b/source/blender/blenlib/BLI_range.hpp
index 0959b0f0743..0253aededc0 100644
--- a/source/blender/blenlib/BLI_range.hpp
+++ b/source/blender/blenlib/BLI_range.hpp
@@ -54,6 +54,12 @@ template<typename T> class Range {
     return RangeIterator(*this, m_one_after_last);
   }
 
+  T operator[](uint index) const
+  {
+    BLI_assert(index < this->size());
+    return m_start + index;
+  }
+
   uint size() const
   {
     return m_one_after_last - m_start;
diff --git a/tests/gtests/blenlib/BLI_range_test.cc b/tests/gtests/blenlib/BLI_range_test.cc
index e8d66cc1854..a1e6fdb66a0 100644
--- a/tests/gtests/blenlib/BLI_range_test.cc
+++ b/tests/gtests/blenlib/BLI_range_test.cc
@@ -47,3 +47,11 @@ TEST(range, MultipleElementRange)
     EXPECT_EQ(vector[i], i + 6);
   }
 }
+
+TEST(range, SubscriptOperator)
+{
+  IntRange range(5, 10);
+  EXPECT_EQ(range[0], 5);
+  EXPECT_EQ(range[1], 6);
+  EXPECT_EQ(range[2], 7);
+}