Merge remote-tracking branches 'neheb/uniq', 'neheb/bool', 'neheb/loop', 'neheb/bool2', 'neheb/perf', 'neheb/void' and 'neheb/value'

src/CommandLine.cxx

@@ -107,7 +107,7 @@ static constexpr OptionDef option_defs[] = {
 static constexpr Domain cmdline_domain("cmdline");
 
 gcc_noreturn
-static void version(void)
+static void version()
 {
 	printf("Music Player Daemon " VERSION " (%s)"
 	       "\n"
@@ -273,7 +273,7 @@ static void PrintOption(const OptionDef &opt)
 }
 
 gcc_noreturn
-static void help(void)
+static void help()
 {
 	printf("Usage:\n"
 	       "  mpd [OPTION...] [path/to/mpd.conf]\n"
@@ -283,7 +283,7 @@ static void help(void)
 	       "Options:\n");
 
 	for (const auto &i : option_defs)
-		if(i.HasDescription() == true) // hide hidden options from help print
+		if(i.HasDescription()) // hide hidden options from help print
 			PrintOption(i);
 
 	exit(EXIT_SUCCESS);

src/LogInit.cxx

@@ -63,7 +63,7 @@ static void redirect_logs(int fd)
 }
 
 static int
-open_log_file(void)
+open_log_file()
 {
 	assert(!out_path.IsNull());
 

src/archive/ArchiveList.cxx

@@ -73,7 +73,7 @@ archive_plugin_from_name(const char *name) noexcept
 	return nullptr;
 }
 
-void archive_plugin_init_all(void)
+void archive_plugin_init_all()
 {
 	for (unsigned i = 0; archive_plugins[i] != nullptr; ++i) {
 		const ArchivePlugin *plugin = archive_plugins[i];

src/archive/plugins/Bzip2ArchivePlugin.cxx

@@ -32,6 +32,7 @@
 #include <bzlib.h>
 
 #include <stdexcept>
+#include <utility>
 
 class Bzip2ArchiveFile final : public ArchiveFile {
 	std::string name;
@@ -65,7 +66,7 @@ class Bzip2InputStream final : public InputStream {
 	char buffer[5000];
 
 public:
-	Bzip2InputStream(const std::shared_ptr<InputStream> &_input,
+	Bzip2InputStream(std::shared_ptr<InputStream> _input,
 			 const char *uri,
 			 Mutex &mutex);
 	~Bzip2InputStream() override;
@@ -111,11 +112,11 @@ bz2_open(Path pathname)
 
 /* single archive handling */
 
-Bzip2InputStream::Bzip2InputStream(const std::shared_ptr<InputStream> &_input,
+Bzip2InputStream::Bzip2InputStream(std::shared_ptr<InputStream> _input,
 				   const char *_uri,
 				   Mutex &_mutex)
 	:InputStream(_uri, _mutex),
-	 input(_input)
+	 input(std::move(_input))
 {
 	Open();
 }

src/archive/plugins/Iso9660ArchivePlugin.cxx

@@ -34,6 +34,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <utility>
+
 #define CEILING(x, y) ((x+(y-1))/y)
 
 struct Iso9660 {
@@ -141,12 +143,12 @@ class Iso9660InputStream final : public InputStream {
 	iso9660_stat_t *statbuf;
 
 public:
-	Iso9660InputStream(const std::shared_ptr<Iso9660> &_iso,
+	Iso9660InputStream(std::shared_ptr<Iso9660> _iso,
 			   const char *_uri,
 			   Mutex &_mutex,
 			   iso9660_stat_t *_statbuf)
 		:InputStream(_uri, _mutex),
-		 iso(_iso), statbuf(_statbuf) {
+		 iso(std::move(_iso)), statbuf(_statbuf) {
 		size = statbuf->size;
 		seekable = true;
 		SetReady();

src/command/AllCommands.cxx

@@ -246,8 +246,8 @@ static CommandResult
 PrintAvailableCommands(Response &r, const Partition &partition,
 		     unsigned permission) noexcept
 {
-	for (unsigned i = 0; i < num_commands; ++i) {
-		const struct command *cmd = &commands[i];
+	for (const auto & i : commands) {
+		const struct command *cmd = &i;
 
 		if (cmd->permission == (permission & cmd->permission) &&
 		    command_available(partition, cmd))
@@ -260,8 +260,8 @@ PrintAvailableCommands(Response &r, const Partition &partition,
 static CommandResult
 PrintUnavailableCommands(Response &r, unsigned permission) noexcept
 {
-	for (unsigned i = 0; i < num_commands; ++i) {
-		const struct command *cmd = &commands[i];
+	for (const auto & i : commands) {
+		const struct command *cmd = &i;
 
 		if (cmd->permission != (permission & cmd->permission))
 			r.Format("command: %s\n", cmd->cmd);

src/db/VHelper.cxx

@@ -23,14 +23,15 @@
 #include "song/Filter.hxx"
 
 #include <algorithm>
+#include <utility>
 
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
-DatabaseVisitorHelper::DatabaseVisitorHelper(const DatabaseSelection &_selection,
+DatabaseVisitorHelper::DatabaseVisitorHelper(DatabaseSelection _selection,
 					     VisitSong &visit_song) noexcept
-	:selection(_selection)
+	:selection(std::move(_selection))
 {
 	// TODO: apply URI and SongFilter
 	assert(selection.uri.empty());

src/db/VHelper.hxx

@@ -60,7 +60,7 @@ public:
 	 * @param visit_song the callback function passed to
 	 * Database::Visit(); may be replaced by this class
 	 */
-	DatabaseVisitorHelper(const DatabaseSelection &selection,
+	DatabaseVisitorHelper(DatabaseSelection selection,
 			      VisitSong &visit_song) noexcept;
 	~DatabaseVisitorHelper() noexcept;
 

src/db/plugins/ProxyDatabasePlugin.cxx

@@ -863,10 +863,7 @@ IsFilterSupported(const ISongFilter &f) noexcept
 			return true;
 
 		const auto tag = Convert(t->GetTagType());
-		if (tag == MPD_TAG_COUNT)
-			return false;
-
-		return true;
+		return tag != MPD_TAG_COUNT;
 	} else if (auto u = dynamic_cast<const UriSongFilter *>(&f)) {
 		if (u->IsNegated())
 			// TODO implement

src/db/update/InotifyUpdate.cxx

@@ -330,7 +330,7 @@ mpd_inotify_init(EventLoop &loop, Storage &storage, UpdateService &update,
 }
 
 void
-mpd_inotify_finish(void) noexcept
+mpd_inotify_finish() noexcept
 {
 	if (inotify_source == nullptr)
 		return;

src/decoder/plugins/FlacDecoderPlugin.cxx

@@ -102,7 +102,7 @@ flac_scan_stream(InputStream &is, TagHandler &handler) noexcept
  * Some glue code around FLAC__stream_decoder_new().
  */
 static FlacStreamDecoder
-flac_decoder_new(void)
+flac_decoder_new()
 {
 	FlacStreamDecoder sd;
 	if(!FLAC__stream_decoder_set_metadata_respond(sd.get(), FLAC__METADATA_TYPE_VORBIS_COMMENT))

src/decoder/plugins/MadDecoderPlugin.cxx

@@ -516,8 +516,8 @@ parse_xing(struct xing *xing, struct mad_bitptr *ptr, int *oldbitlen) noexcept
 	if (xing->flags & XING_TOC) {
 		if (bitlen < 800)
 			return false;
-		for (unsigned i = 0; i < 100; ++i)
-			xing->toc[i] = mad_bit_read(ptr, 8);
+		for (unsigned char & i : xing->toc)
+			i = mad_bit_read(ptr, 8);
 		bitlen -= 800;
 	}
 

src/decoder/plugins/MikmodDecoderPlugin.cxx

@@ -38,24 +38,24 @@ static constexpr Domain mikmod_domain("mikmod");
 static constexpr size_t MIKMOD_FRAME_SIZE = 4096;
 
 static BOOL
-mikmod_mpd_init(void)
+mikmod_mpd_init()
 {
 	return VC_Init();
 }
 
 static void
-mikmod_mpd_exit(void)
+mikmod_mpd_exit()
 {
 	VC_Exit();
 }
 
 static void
-mikmod_mpd_update(void)
+mikmod_mpd_update()
 {
 }
 
 static BOOL
-mikmod_mpd_is_present(void)
+mikmod_mpd_is_present()
 {
 	return true;
 }

src/event/FullyBufferedSocket.cxx

@@ -102,10 +102,7 @@ FullyBufferedSocket::OnSocketReady(unsigned flags) noexcept
 			return false;
 	}
 
-	if (!BufferedSocket::OnSocketReady(flags))
-		return false;
-
-	return true;
+	return BufferedSocket::OnSocketReady(flags);
 }
 
 void

src/input/InputPlugin.cxx

@@ -33,7 +33,7 @@ InputPlugin::SupportsUri(const char *uri) const noexcept
 			if (StringStartsWithIgnoreCase(uri, *i))
 				return true;
 	} else {
-		for (auto schema : protocols()) {
+		for (const auto& schema : protocols()) {
 			if (StringStartsWithIgnoreCase(uri, schema.c_str())){
 				return true;
 			}

src/input/plugins/CdioParanoiaInputPlugin.cxx

@@ -162,7 +162,7 @@ parse_cdio_uri(const char *src)
 }
 
 static AllocatedPath
-cdio_detect_device(void)
+cdio_detect_device()
 {
 	char **devices = cdio_get_devices_with_cap(nullptr, CDIO_FS_AUDIO,
 						   false);

src/ls.cxx

@@ -39,7 +39,7 @@ void print_supported_uri_schemes_to_fp(FILE *fp)
 			protocols.emplace(uri);
 		});
 
-	for (auto protocol : protocols) {
+	for (const auto& protocol : protocols) {
 		fprintf(fp, " %s", protocol.c_str());
 	}
 	fprintf(fp,"\n");
@@ -54,7 +54,7 @@ print_supported_uri_schemes(Response &r)
 			protocols.emplace(uri);
 		});
 
-	for (auto protocol : protocols) {
+	for (const auto& protocol : protocols) {
 		r.Format("handler: %s\n", protocol.c_str());
 	}
 }

src/neighbor/Glue.cxx

@@ -84,8 +84,8 @@ NeighborGlue::Open()
 void
 NeighborGlue::Close() noexcept
 {
-	for (auto i = explorers.begin(), end = explorers.end(); i != end; ++i)
-		i->explorer->Close();
+	for (auto & explorer : explorers)
+		explorer.explorer->Close();
 }
 
 NeighborGlue::List

src/output/State.cxx

@@ -80,7 +80,7 @@ audio_output_state_read(const char *line, MultipleOutputs &outputs)
 }
 
 unsigned
-audio_output_state_get_version(void)
+audio_output_state_get_version()
 {
 	return audio_output_state_version;
 }

src/output/plugins/JackOutputPlugin.cxx

@@ -419,7 +419,7 @@ JackOutput::Connect()
 }
 
 static bool
-mpd_jack_test_default_device(void)
+mpd_jack_test_default_device()
 {
 	return true;
 }

src/output/plugins/PulseOutputPlugin.cxx

@@ -872,7 +872,7 @@ try {
 }
 
 static bool
-pulse_output_test_default_device(void)
+pulse_output_test_default_device()
 {
 	return PulseOutput::TestDefaultDevice();
 }

src/player/CrossFade.cxx

@@ -44,7 +44,7 @@ mixramp_interpolate(const char *ramp_list, float required_db) noexcept
 	 * between the dB and seconds of a pair.
 	 * The dB values must be monotonically increasing for this to work. */
 
-	while (1) {
+	while (true) {
 		/* Parse the dB value. */
 		char *endptr;
 		const float db = ParseFloat(ramp_list, &endptr);

src/player/Thread.cxx

@@ -1155,7 +1155,7 @@ try {
 
 	std::unique_lock<Mutex> lock(mutex);
 
-	while (1) {
+	while (true) {
 		switch (command) {
 		case PlayerCommand::SEEK:
 		case PlayerCommand::QUEUE:

src/playlist/plugins/SoundCloudPlaylistPlugin.cxx

@@ -177,11 +177,11 @@ SoundCloudJsonData::EndMap() noexcept
 {
 	if (got_url > 1) {
 		got_url--;
-		return 1;
+		return true;
 	}
 
 	if (got_url == 0)
-		return 1;
+		return true;
 
 	/* got_url == 1, track finished, make it into a song */
 	got_url = 0;

src/storage/StorageState.cxx

@@ -139,7 +139,7 @@ storage_state_get_hash(const Instance &instance)
 
 	boost::crc_32_type result;
 
-	for (auto mount: mounts) {
+	for (const auto& mount : mounts) {
 		result.process_bytes(mount.c_str(), mount.length());
 	}
 

src/unix/Daemon.cxx

@@ -66,7 +66,7 @@ static bool had_group = false;
 static int detach_fd = -1;
 
 void
-daemonize_kill(void)
+daemonize_kill()
 {
 	if (pidfile.IsNull())
 		throw std::runtime_error("no pid_file specified in the config file");
@@ -85,14 +85,14 @@ daemonize_kill(void)
 }
 
 void
-daemonize_close_stdin(void)
+daemonize_close_stdin()
 {
 	close(STDIN_FILENO);
 	open("/dev/null", O_RDONLY);
 }
 
 void
-daemonize_set_user(void)
+daemonize_set_user()
 {
 	if (user_name == nullptr)
 		return;
@@ -245,7 +245,7 @@ daemonize_init(const char *user, const char *group, AllocatedPath &&_pidfile)
 }
 
 void
-daemonize_finish(void)
+daemonize_finish()
 {
 	if (!pidfile.IsNull()) {
 		unlink(pidfile.c_str());