From 8bea373729c0cf18d2bcd573618fef7258d16e47 Mon Sep 17 00:00:00 2001
From: Marco Bubke <marco.bubke@qt.io>
Date: Wed, 9 Jan 2019 18:29:56 +0100
Subject: [PATCH] Utils: Add size functions to algorithms

So you can type Utils::usize(qVector) == Utils::usize(stdVector) without a
warning. You can write qVector.reserve(Utils::ssize(stdVector) etc..

Change-Id: If5b93b7daa8d4126cf588b0f025b99444bc8e8af
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
---
 src/libs/utils/algorithm.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/libs/utils/algorithm.h b/src/libs/utils/algorithm.h
index 9b699fee1c7..0f3a71426ea 100644
--- a/src/libs/utils/algorithm.h
+++ b/src/libs/utils/algorithm.h
@@ -849,4 +849,16 @@ OutputContainer setUnionMerge(InputContainer1 &&input1,
                                           merge,
                                           std::less<std::decay_t<decltype(*std::begin(input1))>>{});
 }
+
+template<typename Container>
+std::make_unsigned_t<typename Container::size_type> usize(Container container)
+{
+    return static_cast<std::make_unsigned_t<typename Container::size_type>>(container.size());
+}
+
+template<typename Container>
+std::make_signed_t<typename Container::size_type> ssize(Container container)
+{
+    return static_cast<std::make_signed_t<typename Container::size_type>>(container.size());
+}
 } // namespace Utils