投稿時間:2023-05-01 06:11:54 RSSフィード2023-05-01 06:00 分まとめ(15件)

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Azure	Azureタグが付けられた新着投稿 - Qiita	Windows Serverを管理する方法の整理	https://qiita.com/k-kimino/items/e2c8c4be39d0f7a32bed	azure	2023-05-01 05:19:26
海外TECH	MakeUseOf	Apple Arcade vs. Google Play Pass: Which Mobile Gaming Subscription Is Better?	https://www.makeuseof.com/apple-arcade-vs-google-play-pass/	Apple Arcade vs Google Play Pass Which Mobile Gaming Subscription Is Better If you re into mobile gaming you should factor Apple Arcade vs Google Play Pass into your next purchase We ll break the two down and pick a winner	2023-04-30 20:15:17
海外TECH	DEV Community	Top C++23 Features	https://dev.to/sbalasa/top-c23-features-4ibj	Top C Features Coroutines Coroutines simplify asynchronous and concurrent programming by allowing functions to be suspended and resumed They use co yield co await and co return keywords Example include lt iostream gt include lt coroutine gt std coroutine lt int gt generator for int i i lt i co yield I int main for int value generator std cout lt lt value lt lt n Ranges Ranges provide a more expressive way to work with sequences of values The new views namespace contains adaptors that allow for lazy evaluation improving performance and code readability Example include lt iostream gt include lt ranges gt include lt vector gt int main std vector lt int gt numbers Filter even numbers and double their value auto transformed numbers numbers std views filter int n return n std views transform int n return n for int number transformed numbers std cout lt lt number lt lt n Pattern Matching Pattern matching allows for more concise and expressive ways to deal with complex data structures The inspect keyword is introduced for this purpose Example include lt iostream gt include lt variant gt using VarType std variant lt int double std string gt void print value const VarType amp var inspect var int x std cout lt lt Integer lt lt x lt lt n double y std cout lt lt Double lt lt y lt lt n std string s std cout lt lt String lt lt s lt lt n int main VarType a VarType b VarType c Hello World print value a print value b print value c Static Exceptions Static exceptions are a new way to handle errors without the overhead of traditional C exceptions They use the throws keyword to declare that a function may return an error Example include lt iostream gt include lt stdexcept gt include lt string gt std expected lt int std string gt divide int a int b throws if b return std unexpected division by zero return a b int main auto result divide if result std cout lt lt Result lt lt result lt lt n else std cout lt lt Error lt lt result error lt lt n Concepts and Constraints Concepts allow you to specify constraints on template parameters making the code more readable and producing better error messages during compilation Example include lt iostream gt include lt concepts gt template lt typename T gt concept Numeric std is arithmetic v lt T gt template lt Numeric T gt T add T a T b return a b int main int result add This will compile std string error add Hello World This will produce a compilation error std cout lt lt result lt lt n constinit The constinit keyword guarantees that a variable will be initialized during compile time improving performance by avoiding the need for dynamic initialization Example include lt iostream gt constinit int compile time value int main std cout lt lt Value lt lt compile time value lt lt n to underlying The std to underlying function simplifies converting an enumeration to its underlying type Example include lt iostream gt include lt utility gt enum class Color int Red Green Blue int main Color c Color Red int color code std to underlying c std cout lt lt Color code lt lt color code lt lt n source location The std source location class provides a simple way to obtain information about the source code location where it s used such as file name line number and function name Example include lt iostream gt include lt source location gt void print location const std source location amp location std source location current std cout lt lt File lt lt location file name lt lt n lt lt Line lt lt location line lt lt n lt lt Function lt lt location function name lt lt n int main print location flat set and flat map These new containers store elements in a sorted contiguous memory region offering better cache locality and faster lookup times compared to std set and std map Example include lt iostream gt include lt flat set gt include lt string gt int main std flat set lt std string gt names Alice Bob Eve auto it names find Bob if it names end std cout lt lt Found lt lt it lt lt n simd The new std simd library provides a way to use SIMD Single Instruction Multiple Data operations in C programs allowing for better performance on supported hardware Example include lt iostream gt include lt algorithm gt include lt execution gt include lt simd gt include lt vector gt int main std vector lt float gt a f f f f std vector lt float gt b f f f f std vector lt float gt c a size std transform std execution simd a begin a end b begin c begin std plus lt float gt for float value c std cout lt lt value lt lt n span improvements std span is a non owning bounds safe view over a contiguous sequence of objects In C new features have been added such as the ssize function which returns the size of the span as a signed integer Example include lt iostream gt include lt span gt include lt vector gt void print positive size const std span lt int gt amp sp std cout lt lt Size lt lt std ssize sp lt lt n int main std vector lt int gt numbers std span lt int gt num span numbers print positive size num span make shared C adds support for creating std shared ptr instances for arrays using std make shared Example include lt iostream gt include lt memory gt int main auto array ptr std make shared lt int gt for int i i lt i array ptr i i for int i i lt i std cout lt lt array ptr i lt lt n contains C adds std contains to various standard library containers simplifying the process of checking whether a container contains a specific value Example include lt iostream gt include lt unordered set gt int main std unordered set lt int gt numbers if numbers contains std cout lt lt is in the set lt lt n erase if C introduces std erase if a utility function to remove elements from a container based on a specific condition Example include lt iostream gt include lt vector gt include lt algorithm gt int main std vector lt int gt numbers std erase if numbers int n return n for int number numbers std cout lt lt number lt lt chrono improvements C introduces new functions and features to the std chrono library such as calendar and timezone support Example include lt iostream gt include lt chrono gt include lt format gt int main using namespace std chrono Get the current time in the system s local timezone zoned time local time current zone system clock now Output the formatted local time std cout lt lt Local time lt lt std format Y m d H M S local time lt lt n Lambda improvements C introduces improvements to lambda expressions such as making them more expressive and easier to use Example include lt iostream gt include lt vector gt include lt algorithm gt int main std vector lt int gt numbers A lambda with a template parameter auto print value lt typename T gt const T amp value std cout lt lt value lt lt std for each numbers begin numbers end print value net C introduces a new networking library std net which provides support for sockets address resolution and more Example include lt iostream gt include lt net gt int main std net ip tcp iostream stream www example com http if stream std cerr lt lt Error lt lt stream error message lt lt n return stream lt lt GET HTTP r n lt lt Host www example com r n lt lt Connection close r n r n stream flush std string line while std getline stream line std cout lt lt line lt lt n New algorithms in algorithm C adds new algorithms to the std algorithm library such as shift left and shift right which shift elements within a range Example include lt iostream gt include lt vector gt include lt algorithm gt int main std vector lt int gt numbers std shift left numbers begin numbers end for int number numbers std cout lt lt number lt lt identity The std identity function object is introduced in C which can be useful in generic programming as a simple pass through function Example include lt iostream gt include lt vector gt include lt algorithm gt include lt functional gt int main std vector lt int gt numbers std transform numbers begin numbers end numbers begin std identity for int number numbers std cout lt lt number lt lt bulk execute C adds new functions to the std execution library such as std execution bulk execute which allows you to run a function multiple times concurrently Example include lt iostream gt include lt execution gt include lt thread gt void print hello size t index std cout lt lt Hello from task lt lt index lt lt n int main std execution bulk execute std execution par print hello counted iterator C introduces std counted iterator which is useful for creating an iterator that keeps track of a remaining count Example include lt iostream gt include lt iterator gt include lt vector gt int main std vector lt int gt numbers auto start std counted iterator numbers begin auto end std default sentinel for auto it start it end it std cout lt lt it lt lt default initializable C introduces the std default initializable concept which helps to ensure that a type can be default initialized Example include lt iostream gt include lt concepts gt template lt std default initializable T gt T get default return T int main int default int get default lt int gt std cout lt lt Default int lt lt default int lt lt n starts with and ends with C adds starts with and ends with member functions to std basic string making it easier to check if a string starts or ends with a specific substring or character Example include lt iostream gt include lt string gt int main std string greeting Hello world if greeting starts with Hello std cout lt lt The greeting starts with Hello lt lt n if greeting ends with std cout lt lt The greeting ends with an exclamation mark lt lt n is scoped enum C adds the std is scoped enum type trait which helps determine if a given type is a scoped enumeration i e an enum class Example include lt iostream gt include lt type traits gt enum class ScopedEnum A B C enum UnscopedEnum X Y Z int main std cout lt lt std boolalpha lt lt ScopedEnum is scoped lt lt std is scoped enum v lt ScopedEnum gt lt lt n lt lt UnscopedEnum is scoped lt lt std is scoped enum v lt UnscopedEnum gt lt lt n chunk C introduces std views chunk which allows you to create a view that groups elements in a range into subranges of a specified size Example include lt iostream gt include lt vector gt include lt ranges gt int main std vector lt int gt numbers auto chunked view numbers std views chunk for const auto amp chunk chunked view for int number chunk std cout lt lt number lt lt std cout lt lt n unwrap reference C introduces std unwrap reference a utility to unwrap reference wrapper instances and leave other types unchanged Example include lt iostream gt include lt functional gt include lt type traits gt int main int value std reference wrapper lt int gt ref wrapper value Unwrap reference wrapper auto amp unwrapped ref std unwrap reference ref wrapper Modify the original value through the unwrapped reference unwrapped ref std cout lt lt Original value lt lt value lt lt n copyable and movable C introduces the std copyable and std movable concepts which help ensure that a type is copyable or movable respectively Example include lt iostream gt include lt concepts gt template lt std copyable T gt void process copyable const T amp obj Process obj template lt std movable T gt void process movable T amp amp obj Process obj int main int value process copyable value OK int is copyable process movable std move value OK int is movable polymorphic allocator improvements C enhances std polymorphic allocator with additional features such as support for array allocations Example include lt iostream gt include lt memory resource gt include lt vector gt int main std pmr unsynchronized pool resource pool std pmr polymorphic allocator lt int gt alloc amp pool std pmr vector lt int gt numbers alloc numbers reserve for int i i lt i numbers push back i for int number numbers std cout lt lt number lt lt dynamic extent C introduces std dynamic extent which is a constant that represents a dynamic extent for span and mdspan Example include lt iostream gt include lt span gt include lt vector gt int main std vector lt int gt numbers std span lt int std dynamic extent gt dynamic span numbers for int number dynamic span std cout lt lt number lt lt to underlying C introduces std to underlying a utility function that makes it easier to convert an enumeration value to its underlying integral type Example include lt iostream gt include lt type traits gt enum class Color int Red Green Blue int main Color color Color Red auto underlying value std to underlying color std cout lt lt Color Red has an underlying value of lt lt underlying value lt lt n	2023-04-30 20:18:40
Apple	AppleInsider - Frontpage News	How to change Siri's voice on iPhone, Mac, or Apple Watch	https://appleinsider.com/inside/siri/tips/how-to-change-siris-voice-on-iphone-mac-or-apple-watch?utm_medium=rss	How to change Siri x s voice on iPhone Mac or Apple WatchIf you re getting bored of the current Siri voice you can change how the voice sounds or even change Siri s language without changing your device s language Here s how to do it Hey Siri gives you hands free control of Apple devicesApple s digital assistant Siri is capable of everything from setting reminders to transcribing a text message With each passing year the company dedicates more resources to making Siri function more efficiently and with fewer frustrating misunderstandings Read more	2023-04-30 20:53:47
海外TECH	Engadget	ARM registers for US initial public offering	https://www.engadget.com/arm-registers-for-us-initial-public-offering-201942271.html?src=rss	ARM registers for US initial public offeringARM has registered for a US stock market listing In a press release published Saturday the mobile chip company said it recently confidentially submitted a draft F form to the Securities and Exchange Commission According to Reuters ARM hopes to raise between billion and billion dollars when it holds the initial public offering later this year though over the weekend the company said it had yet to determine the size and price range of the proposed IPO ARM parent company SoftBank has been eyeing a public listing ever since NVIDIA s billion bid to buy the chip maker fell through at the start of last year due to regulatory resistance from the US Federal Trade Commission and other antitrust watchdogs In March SoftBank said it would list ARM on the US stock market after rebuffing a push for a London listing from the United Kingdom government ARM designs the processor components used in almost every mobile device including models from Apple and Samsung Its licensing model means nearly every tech company depends on ARM designs According to a recent Financial Times report the company recently began work on a prototype chip that is “more advanced than any semiconductor produced in the past This article originally appeared on Engadget at	2023-04-30 20:19:42
海外科学	NYT > Science	As Hospitals Close and Doctors Flee, Sudan’s Health Care System Is Collapsing	https://www.nytimes.com/2023/04/30/world/africa/sudan-hospitals-doctors-fighting.html	As Hospitals Close and Doctors Flee Sudan s Health Care System Is CollapsingThe medical professionals who remain face meager supplies and harrowing conditions even setting up field hospitals in living rooms amid the fighting	2023-04-30 20:18:30
ニュース	BBC News - Home	Nurses' strike: 28-hour strike over pay under way	https://www.bbc.co.uk/news/health-65443943?at_medium=RSS&at_campaign=KARANGA	action	2023-04-30 20:35:25
ビジネス	ダイヤモンド・オンライン - 新着記事	中国関連株は安川電機やハーモニックなど「ロボット」が有望、コマツはシェア低下で苦戦か - 注目テーマをメッタ斬り！ “人気株”の勝者・敗者	https://diamond.jp/articles/-/322196	中国関連株は安川電機やハーモニックなど「ロボット」が有望、コマツはシェア低下で苦戦か注目テーマをメッタ斬り“人気株の勝者・敗者中国経済の成長を取り込むことで業績を伸ばしてきた「中国関連株」。	2023-05-01 05:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	“あぶない会社”の予兆は「社長の○○」に表れる！敏腕信用調査マンが激白 - リサーチ力 最強のビジネススキル	https://diamond.jp/articles/-/321731	信用調査	2023-05-01 05:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【独占手記】読売新聞・山口社長がIRジャパンに「けじめ」要求！大手法律事務所も断罪した衝撃の全文公開 - マッチポンプ IRジャパンの正体	https://diamond.jp/articles/-/321718		2023-05-01 05:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「ご趣味は？」元国税専門官が明かす、税務調査中の“何気ない質問”の裏にある意図 - シン富裕層の投資・節税・相続	https://diamond.jp/articles/-/321954	国税専門官	2023-05-01 05:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	元国税専門官が明かす、富裕層を狙う税務調査「23年度が本格再開元年だ」 - 有料記事限定公開	https://diamond.jp/articles/-/321953	国税専門官	2023-05-01 05:05:00
ビジネス	東洋経済オンライン	｢バフェットの変節｣に見る投資必勝法の極意 真似をしていた｢なりきりバフェット｣は沈黙 | 投資 | 東洋経済オンライン	https://toyokeizai.net/articles/-/668472?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2023-05-01 05:50:00
ビジネス	東洋経済オンライン	フォロワー数日本一！TikToker｢バヤシ｣は何者か ヒカキンもヒカルも叶わない､飯テロ動画の主 | 最新の週刊東洋経済 | 東洋経済オンライン	https://toyokeizai.net/articles/-/667683?utm_source=rss&utm_medium=http&utm_campaign=link_back	tiktoker	2023-05-01 05:40:00
ビジネス	東洋経済オンライン	｢国策半導体｣ラピダス､2ナノ量産までの道筋 社長の発言から見えてきた2027年への布石 | IT･電機･半導体･部品 | 東洋経済オンライン	https://toyokeizai.net/articles/-/669396?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2023-05-01 05:30:00