投稿時間:2023-04-12 21:16:37 RSSフィード2023-04-12 21:00 分まとめ(19件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	ITmedia 総合記事一覧	[ITmedia News] スマホゲー「あんスタ」、悪質行為に法的措置　キャラ画像に不適切な加工　情報開示請求などを準備	https://www.itmedia.co.jp/news/articles/2304/12/news171.html	happyelements	2023-04-12 20:35:00
AWS	AWS Architecture Blog	Let’s Architect! Monitoring production systems at scale	https://aws.amazon.com/blogs/architecture/lets-architect-monitoring-production-systems-at-scale/	Let s Architect Monitoring production systems at scale“Everything fails all the time is a famous quote from Amazon s Chief Technology Officer Werner Vogels This means that software and distributed systems may eventually fail because something can always go wrong We have to accept this and design our systems accordingly test our software and services and think about all the possible edge cases …	2023-04-12 11:54:02
python	Pythonタグが付けられた新着投稿 - Qiita	色情報から特定の物体を検出してみる	https://qiita.com/Yuzuuu/items/056778f2707d6931519e	opencv	2023-04-12 20:54:57
Git	Gitタグが付けられた新着投稿 - Qiita	【コード管理/GitHub】dbtとGitHubを連携してSnowflakeのコード管理をする	https://qiita.com/Ayumu-y/items/7217a5d3bb66d32d3f2d	github	2023-04-12 20:24:33
Ruby	Railsタグが付けられた新着投稿 - Qiita	【Rails】スライドショー縦並びになる解決方法	https://qiita.com/ayamo/items/b8d12b725f886116100a	jquery	2023-04-12 20:30:20
技術ブログ	Developers.IO	[UPDATE] Amazon IVSの新機能Multiple Hostsについてユースケースや動作の仕組みを確認してみた	https://dev.classmethod.jp/articles/amazon-ivs-multiple-hosts-live-streams/	amazon	2023-04-12 11:30:15
技術ブログ	Developers.IO	GUI の OPC UA クライアント「UaExpert」と「デモサーバ」で OPC UA 通信を試してみる	https://dev.classmethod.jp/articles/use-gui-opcua-client-uaexpert/	opcua	2023-04-12 11:18:10
海外TECH	DEV Community	Struct vs Class in C#: Choosing the Right Data Type	https://dev.to/bytehide/struct-vs-class-in-c-choosing-the-right-data-type-62p	Struct vs Class in C Choosing the Right Data TypeIn C there are two primary object types that developers can use to build their code structs and classes While these two types may seem similar at first glance they have some key differences that set them apart from each other In this article we ll explore what structs and classes are their differences and when to use them in your C code So let s dive in What are Structs and Classes In basic terms a struct is a value type while a class is a reference type Value types contain their data directly on the stack while reference types store a reference to an object containing the data on the heap This difference is important because it affects how the objects are copied and passed around in memory Structs are often used to represent simple data types such as integers strings and other basic data types Classes on the other hand are used to represent more complex objects with multiple properties and methods Classes are typically used to model real world objects such as cars or people in a program Another important difference between structs and classes is that structs are value types which means that they are copied when they are passed as arguments to methods or functions This can be useful in certain situations such as when you want to create a copy of an object without modifying the original Additionally structs are often used in performance critical applications because they are more lightweight than classes Since structs are stored on the stack they can be accessed more quickly than objects stored on the heap Difference Between Struct and Class in C One major difference between structs and classes is that structs are value types while classes are reference types This means that structs are copied by value when they are passed around while classes are copied by reference When you pass a struct to a method you re passing a copy of the data This can cause performance issues if you re working with large structs Another difference is that structs cannot inherit from other structs while classes can inherit from other classes This allows you to create more complex object hierarchies with classes Additionally structs are typically used for smaller simpler data structures while classes are used for more complex objects that require methods and properties Structs are often used for basic data types like integers floats and booleans while classes are used for objects like cars animals and people Memory Allocation for Structs and ClassesWhen you create a struct its memory is allocated on the stack This makes structs more efficient than classes which are allocated on the heap This means that structs are more suitable for functions that require high performance and low memory usage One drawback of using structs is that they have a size limit of bytes If your struct s size exceeds this limit it will be allocated on the heap instead of the stack This can cause performance issues if you re working with large structs On the other hand classes are allocated on the heap which means they have no size limit This makes them more suitable for complex data structures that require a large amount of memory However this also means that classes are less efficient than structs and can cause performance issues if used in functions that require high performance and low memory usage Another advantage of using classes is that they support inheritance and polymorphism which allows for more flexible and modular code Structs on the other hand do not support inheritance or polymorphism and are limited to simple data structures Performance Comparison Structs vs ClassesDue to their memory allocation differences structs are generally faster than classes If you re working with a large amount of data structs can be more efficient because they don t require the overhead of heap memory allocation However there are some cases where classes are faster than structs For example when copying large objects classes can be more efficient because they only copy a reference to the object instead of the object itself Another advantage of using structs is that they are value types meaning that they are copied by value rather than by reference This can be useful in situations where you want to ensure that the original data is not modified by any subsequent operations On the other hand classes are reference types which means that they are passed by reference This can be useful in situations where you want to modify the original data without creating a new copy of it When to Use Structs in C Structs are best used when you need to represent simple data types such as integers strings or other basic data types They are also useful when you need to work with large datasets such as arrays or lists where performance is critical You should also use a struct when you need to pass a small amount of data to a method and you want to avoid the overhead of passing a reference to a class Another scenario where structs can be useful is when you need to create a lightweight object that doesn t require inheritance or polymorphism Since structs are value types they can be easily copied and passed around without the need for complex memory management When to Use Classes in C Classes are best used when you need to represent more complex objects such as real world entities like cars people or animals They are also useful when you need to create hierarchies of objects where one class inherits from another You should also use a class when you need to work with large amounts of data such as when you re working with a database or other external data source Another situation where classes are useful is when you need to encapsulate functionality and data together By creating a class you can group related methods and properties into a single unit making your code more organized and easier to maintain Additionally classes can be used to implement interfaces which define a set of methods that a class must implement This allows for greater flexibility and modularity in your code Examples of Structs and Classes in C Here are some examples of how you might use structs and classes in a C program Example Representing a point struct Point public int X public int Y class PointClass public int X public int Y Example Representing a person struct Person public string Name public int Age class PersonClass public string Name public int Age Example Representing a date struct Date public int Day public int Month public int Year class DateClass public int Day public int Month public int Year Example Representing a book struct Book public string Title public string Author public int Pages class BookClass public string Title public string Author public int Pages Best Practices for Using Structs and Classes in C When using structs it s important to keep their size small so they re stored on the stack instead of the heap This can help to improve performance and reduce memory usage When using classes it s a good idea to use inheritance to create hierarchies of objects with shared properties and methods This can help to reduce code duplication and make your code more maintainable Another important consideration when using structs and classes in C is to use them appropriately based on their intended purpose Structs are best used for small simple data structures that don t require a lot of functionality while classes are better suited for more complex objects with behavior and functionality Common Mistakes to Avoid When Using Structs and Classes in C One common mistake when using structs is to make them too large If your struct is too large it will be stored on the heap instead of the stack which can cause performance issues Another mistake is to use a class when a struct would be more appropriate If you re working with simple data types using a struct can be more efficient and improve performance It s also important to note that structs are value types while classes are reference types This means that when you pass a struct to a method or assign it to a variable a copy of the struct is created This can lead to unexpected behavior if you re not careful Additionally structs cannot inherit from other structs or classes and they cannot be used as a base for other types If you need to create a more complex data structure a class may be a better choice ConclusionStructs and classes are fundamental concepts in C and understanding the differences between them is critical when building your code By understanding their differences you can make informed decisions about when to use which type and how to optimize your code for performance and maintainability	2023-04-12 11:31:55
海外TECH	Engadget	The Morning After: Biden administration wants help making rules for AI models like ChatGPT	https://www.engadget.com/the-morning-after-biden-administration-wants-help-making-rules-for-ai-models-like-chatgpt-111529761.html?src=rss	The Morning After Biden administration wants help making rules for AI models like ChatGPTChatGPT Bard and Bing AI You can t escape the AI models and chatbot evolution and headlines Now the US government is trying to get a handle on things The National Telecommunications and Information Administration NTIA is asking for public comments on possible regulations to hold AI creators accountable The measures will ideally help the Biden administration ensure these models work as promised quot without causing harm quot the NTIA says Hopefully they ll also speak to experts too and not just rely on the anonymous internet public ChatGPT and similar generative AI models have already been tied to sensitive data leaks and copyright violations and have prompted fears of automated disinformation and malware campaigns and that s in addition to basic concerns about accuracy and bias Mat SmithThe Morning After isn t just a newsletter it s also a daily podcast Get our daily audio briefings Monday through Friday by subscribing right here The biggest stories you might have missedIKEA s latest idea is an online design a room serviceYouTube s NFL Sunday Ticket packages start at The best air fryers for Judge rejects Elizabeth Holmes bid for freedom while awaiting appealGoogle Bard s new experiment updates page tells you what s newIt s a move in the right direction for AI transparency GoogleTo be more open about Bard s development Google has created a new experiment updates page where anyone can find information on recent updates to Bard including new features and bug fixes So far the updates include a quot what quot and a quot why quot For the updates page itself Google says it was created so quot people will have an easy place to see the latest Bard updates for them to test and provide feedback quot The information is still pretty short and vague but it s definitely a step in the right direction Continue reading The Polestar will be the company s fastest production carIt ll debut at the Shanghai Auto Show on April th PolestarPolestar has confirmed its latest and fastest production EV the Polestar will debut at the Shanghai Auto Show on April The new generation joins the Polestar and an updated Polestar with the new model s design expected to fall somewhere between the two The Polestar is slightly smaller than the Polestar and a bit higher off the ground than the Polestar and is expected to have a battery that should run for about miles Thomas Ingenlath Polestar CEO emphasized it is not a modified version of its first SUV quot Instead we reconsidered the entire design to create a new breed of SUV coupé quot Continue reading The best VPNs for Don t fall for the hyped up overly marketed options VPNs are having a moment And they are important But deciding the best option for browsing means digging through claims of attributes that aren t always accurate It makes it harder to figure out which one to subscribe to or if you really need to use one at all We tested nine top VPN services available now to help you choose the best one for your needs Continue reading Former Twitter execs sue company over unpaid legal feesThey allege Twitter owes them more than million in unreimbursed legal fees Twitter faces yet another lawsuit over unpaid bills In a complaint filed with the Delaware Chancery Court former CEO Parag Agrawal former CFO Ned Segal and former chief legal officer Vijaya Gadde allege Twitter owes them more than million in unreimbursed legal fees Elon Musk fired all three execs after taking control of the company last fall The former executives allege Twitter spent months ignoring letters they sent asking it to honor a reimbursement agreement they had in place before their termination According to the complaint Twitter finally acknowledged the letters last month but did little else Continue reading This article originally appeared on Engadget at	2023-04-12 11:15:29
海外TECH	CodeProject Latest Articles	Prefer using Stream to byte[]	https://www.codeproject.com/Tips/5308853/Prefer-using-Stream-to-byte	consumption	2023-04-12 11:05:00
医療系	医療介護 CBnews	匿名感染症関連情報の利活用、有識者会議設置へ-厚労省、ガイドライン作成も	https://www.cbnews.jp/news/entry/20230412195426	厚生労働省	2023-04-12 20:10:00
ニュース	@日本経済新聞 電子版	2022年にデフォルト状態に陥ったスリランカの債務再編を進めるため、日本が主導して債権国会議。米欧の利上げで深刻度を増す中所得国の債務解決へ先行事例となる可能性があります。 #日経イブニングスクープ https://t.co/MrlmEWr9J8	https://twitter.com/nikkei/statuses/1646110915853467648	年にデフォルト状態に陥ったスリランカの債務再編を進めるため、日本が主導して債権国会議。	2023-04-12 11:20:00
ニュース	BBC News - Home	Musk talks of Twitter 'rollercoaster' in BBC interview	https://www.bbc.co.uk/news/business-65248196?at_medium=RSS&at_campaign=KARANGA	twitter	2023-04-12 11:51:24
ニュース	BBC News - Home	Scotland to challenge UK block on gender reforms	https://www.bbc.co.uk/news/uk-scotland-scotland-politics-65249431?at_medium=RSS&at_campaign=KARANGA	controversial	2023-04-12 11:51:04
ニュース	BBC News - Home	Rylan Clark steps down from Strictly Come Dancing spin-off It Takes Two	https://www.bbc.co.uk/news/entertainment-arts-65248559?at_medium=RSS&at_campaign=KARANGA	takes	2023-04-12 11:57:57
ニュース	BBC News - Home	Elon Musk: What it's like to interview the billionaire Twitter boss	https://www.bbc.co.uk/news/world-us-canada-65248502?at_medium=RSS&at_campaign=KARANGA	artificial	2023-04-12 11:37:58
ニュース	BBC News - Home	Chris Ashton: Leicester Tigers' former England international to retire from rugby	https://www.bbc.co.uk/sport/rugby-union/65251095?at_medium=RSS&at_campaign=KARANGA	ashton	2023-04-12 11:39:04
ニュース	BBC News - Home	Joe Biden and Rishi Sunak hold talks in Belfast on landmark visit	https://www.bbc.co.uk/news/uk-northern-ireland-65208880?at_medium=RSS&at_campaign=KARANGA	stormont	2023-04-12 11:48:09
IT	週刊アスキー	グラップリングメトロイドヴァニア『Rusted Moss』がSteamで配信開始！ローンチセールも	https://weekly.ascii.jp/elem/000/004/132/4132618/	pcsteam	2023-04-12 20:15:00