大约有 48,000 项符合查询结果(耗时:0.0690秒) [XML]

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Example for boost shared_mutex (multiple reads/one write)?

I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
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GitHub: make fork an “own project”

...t it seems the original author hasn't got the time to review these changes and include them. In fact, it is even possible that the features I need and implemented are not in the vision of the original author and we simply aim at different goals. I don't know as I never got responses from him. ...
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How do I fit an image (img) inside a div and keep the aspect ratio?

I have a 48x48 div and inside it there is an img element, I want to fit it into the div without losing any part, in the mean time the ratio is kept, is it achievable using html and css? ...
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Difference between Activity Context and Application Context

This has me stumped, I was using this in Android 2.1-r8 SDK: 7 Answers 7 ...
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Using mixins vs components for code reuse in Facebook React

I'm beginning to use Facebook React in a Backbone project and so far it's going really well. However, I noticed some duplication creeping into my React code. ...
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Defining and using a variable in batch file

I'm trying to define and use a variable in a batch file. It looks like it should be simple: 3 Answers ...
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Generic method multiple (OR) type constraint

...t types. That means you could just as well leave out the generic parameter and provide overloads. – Botz3000 May 31 '12 at 13:00 ...
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Where can I learn how to write C code to speed up slow R functions? [closed]

...for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R? ...
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How to use a custom comparison function in Python 3?

In Python 2.x , I could pass custom function to sorted and .sort functions 6 Answers ...
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What is the difference between string primitives and String objects in JavaScript?

... JavaScript has two main type categories, primivites and objects. var s = 'test'; var ss = new String('test'); The single quote/double quote patterns are identical in terms of functionality. That aside, the behaviour you are trying to name is called auto-boxing. So what actu...