libcamera: formatting: Avoid spaces in for loops without expression

The clang formatter removes spaces in places of empty expressions in for
loops.  For example, it changes

  for (init; condition; )

to

  for (init; condition;)

libcamera currently uses both the styles and we should use only one of
them for consistency.  Since there is apparently no option to override
the formatter behavior (see
https://clang.llvm.org/docs/ClangFormatStyleOptions.html), let's remove
the extra spaces to make the formatter happy.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/apps/common/options.cpp

@@ -1040,7 +1040,7 @@ void OptionsParser::usageOptions(const std::list<Option> &options,
 
 		std::cerr << std::setw(indent) << argument;
 
-		for (const char *help = option.help, *end = help; end; ) {
+		for (const char *help = option.help, *end = help; end;) {
 			end = strchr(help, '\n');
 			if (end) {
 				std::cerr << std::string(help, end - help + 1);

src/apps/qcam/format_converter.cpp

@@ -249,7 +249,7 @@ void FormatConverter::convertYUVPacked(const Image *srcImage, unsigned char *dst
 	dst_stride = width_ * 4;
 
 	for (src_y = 0, dst_y = 0; dst_y < height_; src_y++, dst_y++) {
-		for (src_x = 0, dst_x = 0; dst_x < width_; ) {
+		for (src_x = 0, dst_x = 0; dst_x < width_;) {
 			cb = src[src_y * src_stride + src_x * 4 + cb_pos_];
 			cr = src[src_y * src_stride + src_x * 4 + cr_pos];
 

src/libcamera/base/object.cpp

@@ -350,7 +350,7 @@ void Object::connect(SignalBase *signal)
 
 void Object::disconnect(SignalBase *signal)
 {
-	for (auto iter = signals_.begin(); iter != signals_.end(); ) {
+	for (auto iter = signals_.begin(); iter != signals_.end();) {
 		if (*iter == signal)
 			iter = signals_.erase(iter);
 		else

src/libcamera/base/signal.cpp

@@ -49,7 +49,7 @@ void SignalBase::disconnect(std::function<bool(SlotList::iterator &)> match)
 {
 	MutexLocker locker(signalsLock);
 
-	for (auto iter = slots_.begin(); iter != slots_.end(); ) {
+	for (auto iter = slots_.begin(); iter != slots_.end();) {
 		if (match(iter)) {
 			Object *object = (*iter)->object();
 			if (object)

src/libcamera/base/thread.cpp

@@ -657,7 +657,7 @@ void Thread::dispatchMessages(Message::Type type)
 	 * the outer calls.
 	 */
 	if (!--data_->messages_.recursion_) {
-		for (auto iter = messages.begin(); iter != messages.end(); ) {
+		for (auto iter = messages.begin(); iter != messages.end();) {
 			if (!*iter)
 				iter = messages.erase(iter);
 			else

src/libcamera/process.cpp

@@ -75,7 +75,7 @@ void ProcessManager::sighandler()
 		return;
 	}
 
-	for (auto it = processes_.begin(); it != processes_.end(); ) {
+	for (auto it = processes_.begin(); it != processes_.end();) {
 		Process *process = *it;
 
 		int wstatus;