From 8e1c3336615f7719c89b8a3dc0dfd336cc0d37c0 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Wed, 12 Feb 2025 22:27:31 -0800
Subject: [PATCH] QCborStreamReader: use std::bit_cast in _toFloatingPoint

Change-Id: Ic5b53111dbdb9073bb45fffd7c1bcb0c80b5df62
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
---
 src/corelib/serialization/qcborstreamreader.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/corelib/serialization/qcborstreamreader.h b/src/corelib/serialization/qcborstreamreader.h
index 5c03f95f0c2..aa11306fb22 100644
--- a/src/corelib/serialization/qcborstreamreader.h
+++ b/src/corelib/serialization/qcborstreamreader.h
@@ -11,6 +11,9 @@
 #include <QtCore/qstring.h>
 #include <QtCore/qstringview.h>
 
+#ifdef __cpp_lib_bit_cast
+#include <bit>
+#endif
 #include <memory>
 
 QT_REQUIRE_CONFIG(cborstreamreader);
@@ -188,9 +191,13 @@ private:
     {
         using UIntFP = typename QIntegerForSizeof<FP>::Unsigned;
         UIntFP u = UIntFP(value64);
+#ifdef __cpp_lib_bit_cast
+        return std::bit_cast<FP>(u);
+#else
         FP f;
         memcpy(static_cast<void *>(&f), &u, sizeof(f));
         return f;
+#endif
     }
 
     friend QCborStreamReaderPrivate;