大约有 43,000 项符合查询结果(耗时:0.0777秒) [XML]

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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?

I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...
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When should we use intern method of String on String literals

...in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned. 1...
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When to use references vs. pointers

I understand the syntax and general semantics of pointers versus references, but how should I decide when it is more-or-less appropriate to use references or pointers in an API? ...
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Equivalent of LIMIT and OFFSET for SQL Server?

In PostgreSQL there is the Limit and Offset keywords which will allow very easy pagination of result sets. 16 Answers ...
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NHibernate vs LINQ to SQL

...orld projects I wonder if anyone knows how these two complement each other and how much their functionalities overlap? 9 An...
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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference

...nicity. Forewords This topic has been iterated at least a couple of thousands of times, here, in Stack Overflow. Hence, first off I'd like to point out some extremely useful resources: @Felix Kling's answer to "How do I return the response from an asynchronous call?". See his excellent answer ex...
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How to install packages offline?

What's the best way to download a python package and it's dependencies from pypi for offline installation on another machine? Is there any easy way to do this with pip or easy_install? I'm trying to install the requests library on a FreeBSD box that is not connected to the internet. ...
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How can I test https connections with Django as easily as I can non-https connections using 'runserv

I have an application that uses "secure" cookies and want to test it's functionality without needing to set up a complicated SSL enabled development server. Is there any way to do this as simply as I can test non-encrypted requests using ./manage.py runserver ? ...
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What are the pros and cons of both Jade and EJS for Node.js templating? [closed]

Jade versus EJS, what are the pros and cons of each and what purposes are each designed for? 2 Answers ...
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Difference between modes a, a+, w, w+, and r+ in built-in open function?

...tion, what is the exact difference between the modes w , a , w+ , a+ , and r+ ? 6 Answers ...