Simplified ranges::find_if with ranges::any_of and ranges::none_of.

Telegram/SourceFiles/boxes/add_contact_box.cpp

@@ -172,8 +172,7 @@ void ShowAddParticipantsError(
 			return;
 		}
 	}
-	const auto bot = ranges::find_if(users, &UserData::isBot);
-	const auto hasBot = (bot != end(users));
+	const auto hasBot = ranges::any_of(users, &UserData::isBot);
 	const auto text = [&] {
 		if (error == qstr("USER_BOT")) {
 			return tr::lng_cant_invite_bot_to_channel(tr::now);

Telegram/SourceFiles/boxes/auto_download_box.cpp

@@ -172,26 +172,26 @@ void AutoDownloadBox::setupContent() {
 		}) | ranges::view::transform([](Pair pair) {
 			return pair.first;
 		});
-		const auto less = ranges::find_if(*autoPlayValues, [&](Pair pair) {
+		const auto less = ranges::any_of(*autoPlayValues, [&](Pair pair) {
 			const auto [type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			return value < settings->bytesLimit(_source, type);
-		}) != end(*autoPlayValues);
+		});
 		const auto allowMoreTypes = base::flat_set<Type>(
 			allowMore.begin(),
 			allowMore.end());
 
-		const auto changed = ranges::find_if(values, [&](Pair pair) {
+		const auto changed = ranges::any_of(values, [&](Pair pair) {
 			const auto [type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			return value != settings->bytesLimit(_source, type);
-		}) != end(values);
+		});
 
 		const auto &kHidden = kStreamedTypes;
-		const auto hiddenChanged = ranges::find_if(kHidden, [&](Type type) {
+		const auto hiddenChanged = ranges::any_of(kHidden, [&](Type type) {
 			const auto now = settings->bytesLimit(_source, type);
 			return (now > 0) && (now != limitByType(type));
-		}) != end(kHidden);
+		});
 
 		if (changed) {
 			for (const auto [type, enabled] : values) {
@@ -216,8 +216,7 @@ void AutoDownloadBox::setupContent() {
 		if (allowMoreTypes.contains(Type::Photo)) {
 			_session->data().photoLoadSettingsChanged();
 		}
-		if (ranges::find_if(allowMoreTypes, _1 != Type::Photo)
-				!= allowMoreTypes.end()) {
+		if (ranges::any_of(allowMoreTypes, _1 != Type::Photo)) {
 			_session->data().documentLoadSettingsChanged();
 		}
 		if (less) {

Telegram/SourceFiles/boxes/background_preview_box.cpp

@@ -271,14 +271,14 @@ bool ServiceCheck::checkRippleStartPosition(QPoint position) const {
 	if (slug.isEmpty() || slug.size() > kMaxWallPaperSlugLength) {
 		return false;
 	}
-	return ranges::find_if(slug, [](QChar ch) {
+	return ranges::none_of(slug, [](QChar ch) {
 		return (ch != '.')
 			&& (ch != '_')
 			&& (ch != '-')
 			&& (ch < '0' || ch > '9')
 			&& (ch < 'a' || ch > 'z')
 			&& (ch < 'A' || ch > 'Z');
-	}) == slug.end();
+	});
 }
 
 AdminLog::OwnedItem GenerateTextItem(

Telegram/SourceFiles/boxes/confirm_box.cpp

@@ -678,10 +678,7 @@ auto DeleteMessagesBox::revokeText(not_null<PeerData*> peer) const
 	const auto cannotRevoke = [&](HistoryItem *item) {
 		return !item->canDeleteForEveryone(now);
 	};
-	const auto canRevokeAll = ranges::find_if(
-		items,
-		cannotRevoke
-	) == end(items);
+	const auto canRevokeAll = ranges::none_of(items, cannotRevoke);
 	auto outgoing = items | ranges::view::filter(&HistoryItem::out);
 	const auto canRevokeOutgoingCount = canRevokeAll
 		? -1

Telegram/SourceFiles/boxes/connection_box.cpp

@@ -1028,7 +1028,7 @@ void ProxiesBoxController::ShowApplyConfirmation(
 				: QString());
 		*box = Ui::show(Box<ConfirmBox>(text, tr::lng_sure_enable(tr::now), [=] {
 			auto &proxies = Global::RefProxiesList();
-			if (ranges::find(proxies, proxy) == end(proxies)) {
+			if (!ranges::contains(proxies, proxy)) {
 				proxies.push_back(proxy);
 			}
 			Core::App().setCurrentProxy(

Telegram/SourceFiles/boxes/create_poll_box.cpp

@@ -724,9 +724,8 @@ void Options::removeDestroyed(not_null<Option*> option) {
 void Options::validateState() {
 	checkLastOption();
 	_hasOptions = (ranges::count_if(_list, &Option::isGood) > 1);
-	_isValid = _hasOptions
-		&& (ranges::find_if(_list, &Option::isTooLong) == end(_list));
-	_hasCorrect = ranges::find_if(_list, &Option::isCorrect) != end(_list);
+	_isValid = _hasOptions && ranges::none_of(_list, &Option::isTooLong);
+	_hasCorrect = ranges::any_of(_list, &Option::isCorrect);
 
 	const auto lastEmpty = !_list.empty() && _list.back()->isEmpty();
 	_usedCount = _list.size() - (lastEmpty ? 1 : 0);

Telegram/SourceFiles/boxes/peers/edit_peer_type_box.cpp

@@ -485,12 +485,12 @@ void Controller::usernameChanged() {
 		_checkUsernameTimer.cancel();
 		return;
 	}
-	const auto bad = ranges::find_if(username, [](QChar ch) {
+	const auto bad = ranges::any_of(username, [](QChar ch) {
 		return (ch < 'A' || ch > 'Z')
 			&& (ch < 'a' || ch > 'z')
 			&& (ch < '0' || ch > '9')
 			&& (ch != '_');
-	}) != username.end();
+	});
 	if (bad) {
 		showUsernameError(tr::lng_create_channel_link_bad_symbols());
 	} else if (username.size() < kMinUsernameLength) {

Telegram/SourceFiles/boxes/send_files_box.cpp

@@ -62,10 +62,7 @@ enum class ButtonType {
 };
 
 inline bool CanAddUrls(const QList<QUrl> &urls) {
-	return !urls.isEmpty() && ranges::find_if(
-		urls,
-		[](const QUrl &url) { return !url.isLocalFile(); }
-	) == urls.end();
+	return !urls.isEmpty() && ranges::all_of(urls, &QUrl::isLocalFile);
 }
 
 inline bool IsFirstAlbumItem(const Storage::PreparedList &list) {