From 2fc4e17e3188085a3c0c91dd8366d07919d9d1ea Mon Sep 17 00:00:00 2001
From: Marco Bubke <marco.bubke@qt.io>
Date: Thu, 21 Sep 2017 11:34:41 +0200
Subject: [PATCH] Utils: Add Utils::SmallStringView::empty

It is required by many template function because it is used in the STL.

Change-Id: I5a2b9266d0c9d79bdc37cbbc4e7b62fac7a82b8b
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
---
 src/libs/utils/smallstringview.h         | 6 ++++++
 tests/unit/unittest/smallstring-test.cpp | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/src/libs/utils/smallstringview.h b/src/libs/utils/smallstringview.h
index 2320ef99b6b..3d479195f17 100644
--- a/src/libs/utils/smallstringview.h
+++ b/src/libs/utils/smallstringview.h
@@ -97,6 +97,12 @@ public:
         return m_size == 0;
     }
 
+    constexpr
+    size_type empty() const noexcept
+    {
+        return m_size == 0;
+    }
+
     constexpr
     const_iterator begin() const noexcept
     {
diff --git a/tests/unit/unittest/smallstring-test.cpp b/tests/unit/unittest/smallstring-test.cpp
index 64273c45b2e..345480182bc 100644
--- a/tests/unit/unittest/smallstring-test.cpp
+++ b/tests/unit/unittest/smallstring-test.cpp
@@ -1004,6 +1004,12 @@ TEST(SmallString, StringViewIsEmpty)
     ASSERT_TRUE(SmallStringView("").isEmpty());
 }
 
+TEST(SmallString, StringViewEmpty)
+{
+    ASSERT_FALSE(SmallStringView("text").empty());
+    ASSERT_TRUE(SmallStringView("").empty());
+}
+
 TEST(SmallString, HasContent)
 {
     ASSERT_TRUE(SmallString("text").hasContent());