From e6436af8eb25312cb676436d5a04b85d9178346d Mon Sep 17 00:00:00 2001
From: Andrei Golubev <andrei.golubev@qt.io>
Date: Thu, 22 Apr 2021 16:59:27 +0200
Subject: Add q_points_into_range to container utilities

We already used it in QString and QBA. And implicitly in QADP (see
parent commit). Might as well move to a common location and reuse

Change-Id: I694f0f1dbd109f17c134f64b3f3dc28d19556c88
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
(cherry picked from commit 10b46e7f0faecc42a94cc2e25ad3edd08ae28083)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/corelib/tools/qcontainertools_impl.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/corelib/tools')

diff --git a/src/corelib/tools/qcontainertools_impl.h b/src/corelib/tools/qcontainertools_impl.h
index 238e8a849b..465ea5c544 100644
--- a/src/corelib/tools/qcontainertools_impl.h
+++ b/src/corelib/tools/qcontainertools_impl.h
@@ -59,6 +59,19 @@ QT_BEGIN_NAMESPACE
 namespace QtPrivate
 {
 
+/*!
+  \internal
+
+  Returns whether \a p is within a range [b, e). In simplest form equivalent to:
+  b <= p < e.
+*/
+template<typename T, typename Cmp = std::less<>>
+static constexpr bool q_points_into_range(const T *p, const T *b, const T *e,
+                                          Cmp less = {}) noexcept
+{
+    return !less(p, b) && less(p, e);
+}
+
 template <typename T, typename N>
 void q_uninitialized_relocate_n(T* first, N n, T* out)
 {
-- 
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