From ba75f71ca94ec539d170a28232997a27b68e310d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Thu, 12 May 2022 01:11:59 +0200
Subject: [PATCH] Containers: fix StridedArrayView with std::unique() on MSVC
 2015.

Ah well.
---
 src/Corrade/Containers/StridedArrayView.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Corrade/Containers/StridedArrayView.h b/src/Corrade/Containers/StridedArrayView.h
index 2f65df18e..9330c18be 100644
--- a/src/Corrade/Containers/StridedArrayView.h
+++ b/src/Corrade/Containers/StridedArrayView.h
@@ -1910,6 +1910,13 @@ template<unsigned dimensions, class T> class StridedIterator {
 
         #ifndef DOXYGEN_GENERATING_OUTPUT
         /*implicit*/ StridedIterator(typename std::conditional<std::is_const<T>::value, const void, void>::type* data, const StridedDimensions<dimensions, std::size_t>& size, const StridedDimensions<dimensions, std::ptrdiff_t>& stride, std::size_t i) noexcept: _data{data}, _size{size}, _stride{stride}, _i{i} {}
+
+        #ifdef CORRADE_MSVC2015_COMPATIBILITY
+        /* Needed by MSVC 2015 to make StridedIterator usable with
+           std::unique() -- it wants to default-construct it, for some reason.
+           See StridedArrayViewStlTest::unique() for a repro case. */
+        /*implicit*/ StridedIterator(): _data{}, _size{}, _stride{}, _i{} {}
+        #endif
         #endif
 
         /** @brief Equality comparison */