[libcamera-devel] [PATCH v3 11/33] cam: options: Add empty() function to OptionValue class

[Laurent Pinchart]

Add a convenience helper to check if an option value is empty, based on
the value type. This is useful as a shortcut syntax to check if an
option has been set.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 src/cam/options.cpp | 7 +++++++
 src/cam/options.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/src/cam/options.cpp b/src/cam/options.cpp
index fda6d9764ac5..481ac189f115 100644
--- a/src/cam/options.cpp
+++ b/src/cam/options.cpp
@@ -583,6 +583,13 @@ void OptionValue::addValue(const OptionValue &value)
  * \return The value type
  */
 
+/**
+ * \fn OptionValue::empty()
+ * \brief Check if the value is empty
+ * \return True if the value is empty (type set to ValueType::ValueNone), or
+ * false otherwise
+ */
+
 /**
  * \brief Cast the value to an int
  * \return The option value as an int, or 0 if the value type isn't
diff --git a/src/cam/options.h b/src/cam/options.h
index 210e502a24e1..83c409ae4d28 100644
--- a/src/cam/options.h
+++ b/src/cam/options.h
@@ -135,6 +135,7 @@ public:
 	void addValue(const OptionValue &value);
 
 	ValueType type() const { return type_; }
+	bool empty() const { return type_ == ValueType::ValueNone; }
 
 	operator int() const;
 	operator std::string() const;
-- 
Regards,

Laurent Pinchart