key-value

I'm looking for a way to have a function such as: myFunction({"Key", value}, {"Key2", value}); I'm sure there's something with anonymous types that would be pretty easy, but I'm not seeing it. The only solution I can think of is to have a params KeyValuePair<String, object>[] pairs parameter, but that ends up being something similar to: myFunction(new KeyValuePair<String, object>("Key", value), new KeyValuePair<String, object>("Key2", value)); Which is, admittedly, much uglier. EDIT: To clarify, I'm writing a Message class to pass between 2 different systems. It contains a ushort specifying

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm working on an iPhone app and I need to add a new key-value pair to an existing plist file using objective-c. This is what I've tried so far: NSString *myFile=[[NSBundle mainBundle] pathForResource:@"Favourites" ofType:@"plist"]; dict = [[NSMutableDictionary alloc] initWithContentsOfFile:myFile]; [dict setObject:textContent forKey:keyName]; [dict writeToFile:myFile atomically:YES]; However, when I do this it doesn't write it to the file. I've only seen resources based on either changing the value of a key or adding to another key. Is

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to use the GWAN API Key-Value to record and read a number of data (in a multi-threaded way). The problem is that my recordings are only available on the current page and therefore can not be used on my other pages. Can you show me an example or explain how to create a persistent KV store (which will be accessible on all my subdomains) ? Here is an example that I currently use: kv_t store; kv_init(&store, "users", 10, 0, 0, 0); kv_item item; item.key = "pierre"; item.klen = sizeof("pierre") - 1; item.val = "pierre@example.com"; item

Using the Settings.app on the iPhone isn't that hard. In fact Xcode does the most of the work for you. Just add the Settings.bundle to your project and there you have it for nearly no cost. At the moment I'm developing an application for the iPhone which requires the user to fill out several "forms", mostly key-value pairs, some sliders and several modal views with "dropdown" menus. So similar the task is similar to what the Settings.app does. Doing the forms by myself is a heavy task in my opinion, so I'm wonding if there's a framework for this kind of tasks. Unfortunately it looks like Apple

I use xmlstarlet el -v to display the structure of an xml file, including all the attributes and values. I would like to convert its output to some sort of key-value pairs, i.e. each attribute with its value on a separate line (including the XPath); each line must be unique. Current result: topRoot/topSystem/commSvcEp/commSyslog[@descr='Syslog Service' and @name='syslog' and @policyOwner='local' and @severity='critical'] topRoot/topSystem/commSvcEp/commSyslog/commSyslogClient[@adminState='disabled' and @forwardingFacility='local7' and @hostname='none' and @name='secondary' and @severity=

I'm looking for suggestions regarding in-memory key-value store engines or libraries, that have C++ interfaces or that are written in C++. I'm looking for solutions that can scale without any problems to about 100mill key-value pairs and that are compatible/compilable on linux and win32/64 How about std::map ? http://cplusplus.com/reference/stl/map/ If you really need to store such amount of pairs in memory consider this Sparse Hash . It has special implementation which is optimized for low memory consumption. std::map is fine given that size of key and value is small and the available memory

　　微软支持并发的Key-Value 存储库有C++与C#两个版本。号称迄今为止最快的并发键值存储。下面是C#版本翻译： FASTER C＃可在.NET Framework和.NET Core 中运行，并且可以在单线程和并发设置中使用。经过测试，可以在 Windows和Linux上使用。它公开了一种API，该API可以执行读取，盲更新（Upserts）和读取-修改-写入(RMW) 操作的混合。它支持大于内存的数据，并接受 IDevice 将日志存储在 文件 中的实现。提供了 IDevice 本地文件系统的实现， 也 可以写入远程文件系统。或者将远程存储 映射到 本地文件系统中。 FASTER可以用作传统并发数据结构 类似 ConcurrentDictionary的高性能替代品，并且还支持大于内存的数据。它支持增量 或 非增量数据结构 类型的 检查点。 FASTER支持三种基本操作： Read ：从键值存储中读取数据 Upsert：将值盲目向上插入到存储中（不检查先前的值） Read-Modify-Write ：更新存储区中的值，用于实现 “求和”和“计数”之类的操作。 构建 在实例化 FASTER之前，您需要创建FASTER将使用的存储设备。如果使用的是 可移植类型 （ byte 、 int 、 double ） 类型，则仅需要混合日志设备。如果使用对象

I'm currently learning c. I'm writing a web server as an exercise. Now i have to store the status codes and reason phrases. What is the best way to store those key/value pairs? My first bet was a hashmap. But there is no native implementation in c. So i would have to use a library. Like other answers, I would also recommend just using an array of strings as a lookup table. If you assume all the status codes are unique, an array of strings is by far the easiest implementation for a smaller set of data. Once you start storing larger amounts of data, that is when hashmaps start becoming useful. A

字典 　　字典是Python提供的一种常用的数据结构，它用于存放具有映射关系的数据。 　　比如有份成绩表数据，语文：79，数学：80，英语：92，这组数据看上去像两个列表，但这两个列表的元素之间有一定的关联关系。如果单纯使用两个列表来保存这组数据，则无法记录两组数据之间的关联关系。 　　为了保存具有映射关系的数据，Python 提供了字典，字典相当于保存了两组数据，其中一组数据是关键数据，被称为 key；另一组数据可通过 key 来访问，被称为 value。 由于字典中的 key 是非常关键的数据，而且程序需要通过 key 来访问 value，因此字典中的 key 不允许重复。程序可使用花括号语法来创建字典，空的花括号既创建空字典，key与value之间用":"隔开，多个key-value之间用","隔开。 　　示例如下： a={} b={"y":1,"x":3} c={(85,90):"good",60:"bad"}　　#第一个key值为元组，第二个key值是整数值，是合法的 print(a,b,c) 需要注意的是，元组可以作为字典的key值，而列表不能作为字典的key值。这是因为字典要求key值必须是不可变类型。 　　在使用 dict() 函数创建字典时，可以传入多个列表或元组参数作为 key-value 对，每个列表或元组将被当成一个 key-value 对