From 4bd0d208128e64b8285045e53ab57e33fe7a5dbf Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 5 Nov 2022 15:09:52 +0100
Subject: [PATCH] Raytracing: QString::indexOf is now marked as [[nodiscard]]

---
 src/Mod/Raytracing/Gui/PovrayHighlighter.cpp | 3 ++-
 src/Mod/Raytracing/Gui/PreCompiled.h         | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Raytracing/Gui/PovrayHighlighter.cpp b/src/Mod/Raytracing/Gui/PovrayHighlighter.cpp
index 58619a6746..722cb9fae5 100644
--- a/src/Mod/Raytracing/Gui/PovrayHighlighter.cpp
+++ b/src/Mod/Raytracing/Gui/PovrayHighlighter.cpp
@@ -22,6 +22,7 @@
 
 #include "PreCompiled.h"
 #ifndef _PreComp_
+# include <boost/core/ignore_unused.hpp>
 # include <QRegularExpression>
 # include <QRegularExpressionMatch>
 #endif
@@ -98,7 +99,7 @@ void PovrayHighlighter::highlightBlock(const QString &text)
             else if (text.mid(i,1) == QLatin1String("#")) {
                 QRegularExpression rx(QLatin1String("#\\s*(\\w*)"));
                 QRegularExpressionMatch match;
-                text.indexOf(rx, i, &match);
+                boost::ignore_unused(text.indexOf(rx, i, &match));
                 if (match.hasMatch()) {
                     if (d->keywords.contains(match.captured(1)) != 0)
                         setFormat(i, match.capturedLength(), this->colorByType(SyntaxHighlighter::Keyword));
diff --git a/src/Mod/Raytracing/Gui/PreCompiled.h b/src/Mod/Raytracing/Gui/PreCompiled.h
index 4429c44ebc..f2030603e0 100644
--- a/src/Mod/Raytracing/Gui/PreCompiled.h
+++ b/src/Mod/Raytracing/Gui/PreCompiled.h
@@ -35,6 +35,9 @@
 #include <sstream>
 #include <vector>
 
+// Boost
+#include <boost/core/ignore_unused.hpp>
+
 #ifdef FC_OS_WIN32
 # include <windows.h>
 #endif