diff options
author | Jacques Lucke <jacques@blender.org> | 2020-04-28 17:35:49 +0300 |
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committer | Jacques Lucke <jacques@blender.org> | 2020-04-28 17:35:49 +0300 |
commit | d575b72c16d217353795594032196a5857907de2 (patch) | |
tree | 3eee36f974a89d421d102cfde34f61213c401f7d | |
parent | 69e8de434ffda6b0135b7d0656bc29d60b9dca08 (diff) |
BLI: add Set.is_empty method
-rw-r--r-- | source/blender/blenlib/BLI_set.hh | 8 | ||||
-rw-r--r-- | tests/gtests/blenlib/BLI_set_test.cc | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_set.hh b/source/blender/blenlib/BLI_set.hh index b09dd910007..f9d4bbfaed4 100644 --- a/source/blender/blenlib/BLI_set.hh +++ b/source/blender/blenlib/BLI_set.hh @@ -277,6 +277,14 @@ class Set { } /** + * Return true if this set contains no elements. + */ + bool is_empty() const + { + return this->size() == 0; + } + + /** * Returns true when there is at least one element that is in both sets. * Otherwise false. */ diff --git a/tests/gtests/blenlib/BLI_set_test.cc b/tests/gtests/blenlib/BLI_set_test.cc index dc163e752d8..ae46c2bf52e 100644 --- a/tests/gtests/blenlib/BLI_set_test.cc +++ b/tests/gtests/blenlib/BLI_set_test.cc @@ -10,6 +10,7 @@ TEST(set, Defaultconstructor) { IntSet set; EXPECT_EQ(set.size(), 0); + EXPECT_TRUE(set.is_empty()); } TEST(set, ContainsNotExistant) @@ -22,8 +23,10 @@ TEST(set, ContainsExistant) { IntSet set; EXPECT_FALSE(set.contains(5)); + EXPECT_TRUE(set.is_empty()); set.add(5); EXPECT_TRUE(set.contains(5)); + EXPECT_FALSE(set.is_empty()); } TEST(set, AddMany) |