Fix unused variable warning

ChristosT · ChristosT · commit a2bbccbceafe · 2026-05-20T19:47:16.000+03:00
fixes warning emited due to [-Werror=unused-variable]
diff --git a/application/F3DOptionsTools.cxx b/application/F3DOptionsTools.cxx
@@ -497,7 +497,7 @@ std::vector<std::pair<std::string, F3DOptionsTools::OptionValue>>
 F3DOptionsTools::ConvertToLibf3dOptions(const std::string& key, const OptionValue& value)
 {
   std::vector<std::pair<std::string, F3DOptionsTools::OptionValue>> libf3dOptions;
-  const bool is_single_valued = std::holds_alternative<std::string>(value);
+  [[maybe_unused]] const bool is_single_valued = std::holds_alternative<std::string>(value);
 
   // Simple one-to-one case
   auto libf3dIter = F3DOptionsTools::LibOptionsNames.find(key);

Original file line number	Diff line number	Diff line change
`@@ -497,7 +497,7 @@ std::vector<std::pair<std::string, F3DOptionsTools::OptionValue>>`
`497`	`497`	`F3DOptionsTools::ConvertToLibf3dOptions(const std::string& key, const OptionValue& value)`
`498`	`498`	`{`
`499`	`499`	`std::vector<std::pair<std::string, F3DOptionsTools::OptionValue>> libf3dOptions;`
`500`		`- const bool is_single_valued = std::holds_alternative<std::string>(value);`
	`500`	`+ [[maybe_unused]] const bool is_single_valued = std::holds_alternative<std::string>(value);`
`501`	`501`
`502`	`502`	`// Simple one-to-one case`
`503`	`503`	`auto libf3dIter = F3DOptionsTools::LibOptionsNames.find(key);`