[libcamera-devel] [PATCH 3/6] cam: options: return if addOption() succeeds or not

[Niklas Söderlund]

To later extend the options handling to cover subparsing of arguments it
will be needed to know if the addition of the option itself was
successful or not. The information is already present in addOption()
this change just makes it available.

Signed-off-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
---
 src/cam/options.cpp | 11 ++++++-----
 src/cam/options.h   |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/cam/options.cpp b/src/cam/options.cpp
index b24964a8ce413a85..c9ca017b4cf3fa3d 100644
--- a/src/cam/options.cpp
+++ b/src/cam/options.cpp
@@ -12,7 +12,7 @@
 
 #include "options.h"
 
-void OptionsParser::addOption(int opt, const char *help, const char *name,
+bool OptionsParser::addOption(int opt, const char *help, const char *name,
 			      OptionArgument argument, const char *argumentName)
 {
 	/*
@@ -20,18 +20,19 @@ void OptionsParser::addOption(int opt, const char *help, const char *name,
 	 * If an argument is accepted, it must be described by argumentName.
 	 */
 	if (!isalnum(opt) && !name)
-		return;
+		return false;
 	if (!help || help[0] == '\0')
-		return;
+		return false;
 	if (argument != ArgumentNone && !argumentName)
-		return;
+		return false;
 
 	/* Reject duplicate options. */
 	if (optionsMap_.find(opt) != optionsMap_.end())
-		return;
+		return false;
 
 	options_.push_back(Option({ opt, name, argument, argumentName, help }));
 	optionsMap_[opt] = &options_.back();
+	return true;
 }
 
 OptionsParser::Options OptionsParser::parse(int argc, char **argv)
diff --git a/src/cam/options.h b/src/cam/options.h
index a08bfea1ba74c96b..dfb7fcc9f6fa3324 100644
--- a/src/cam/options.h
+++ b/src/cam/options.h
@@ -38,7 +38,7 @@ public:
 	{
 	};
 
-	void addOption(int opt, const char *help, const char *name = nullptr,
+	bool addOption(int opt, const char *help, const char *name = nullptr,
 		       OptionArgument argument = ArgumentNone,
 		       const char *argumentName = nullptr);
 
-- 
2.20.1