大约有 23,000 项符合查询结果(耗时:0.0399秒) [XML]

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A fast method to round a double to a 32-bit int explained

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...
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Unable to load DLL (Module could not be found HRESULT: 0x8007007E)

... Current Directory System folder, C:\windows\system32 or c:\windows\SysWOW64 (for 32-bit process on 64-bit box). Reading from the Path environment variable In addition I'd check the dependencies of the DLL, the dependency walker provided with Visual Studio can help you out here, it can also be do...
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How are Python's Built In Dictionaries Implemented?

...49) When adding entries to the table, we start with some slot, i, that is based on the hash of the key. CPython initially uses i = hash(key) & mask (where mask = PyDictMINSIZE - 1, but that's not really important). Just note that the initial slot, i, that is checked depends on the hash of the k...
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How to find out which package version is loaded in R?

... LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] graphics grDevices utils datasets stats grid methods base other attached packages: [1] ggplot2_0.9.0 reshape2_1.2.1 plyr_1.7.1 loaded via a namespace (and not attached): [1] co...
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Why is there no std::stou?

...+11 21.5/1: Effects: the first two functions call strtol(str.c_str(), ptr, base), and the last three functions call strtoul(str.c_str(), ptr, base), strtoll(str.c_str(), ptr, base), and strtoull(str.c_str(), ptr, base), respectively. – Mike Seymour Jan 3 '12 at...
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ctypes - Beginner

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How to have favicon / icon set when bookmarklet dragged to toolbar?

...t;<A HREF="http://mail.google.com/mail/u/0/#inbox" ICON="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABV0lEQVQ4jdWQzUoCYRiFnxl/0plso0IKX7mqXWCLIlq0qEW4d19Qi6BLCELwEgpvQbyAVrroCrSNUJFGAyrkEEEMNs5PCxtRHGsZneX7nedwzgd/LQngObfnykIQOj9Disd/BFxdZ3hVwtE0Mje3kuw9OJqGWSji1BtzYafeGH...
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What is the most effective way for float and double comparison?

...t the Google C++ Testing Framework contains a nice cross-platform template-based implementation of AlmostEqual2sComplement which works on both doubles and floats. Given that it is released under the BSD license, using it in your own code should be no problem, as long as you retain the license. I ext...
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How do I truncate a .NET string?

... 641 There isn't a Truncate() method on string, unfortunately. You have to write this kind of logic...
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Should I use the datetime or timestamp data type in MySQL?

... but it is a cleaner design long-term. Of course, present the info to user based on their current settings. If user wishes to enter "09:00 in Paris", then let them set Paris time, then enter 09:00. Then anyone who is in New York can easily find what time they need to be awake at their time, to telec...