大约有 20,000 项符合查询结果(耗时:0.0461秒) [XML]

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How do I test a private function or a class that has private methods, fields or inner classes?

...vate methods, fields or nested classes? Or a function that is made private by having internal linkage ( static in C/C++) or is in a private ( anonymous ) namespace? ...
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Undefined reference to `pow' and `floor'

I'm trying to make a simple fibonacci calculator in C but when compiling gcc tells me that I'm missing the pow and floor functions. What's wrong? ...
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Bootstrap Dropdown menu is not working

I am having trouble getting my dropdowns to work. I can get the navbar to show up perfectly, but when I click on "Dropdown" (either of them) it does not display the dropdown menu. I have tried looking on other posts about this, but nothing that fixed everyone's problems helped. I copied the source s...
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What does addChildViewController actually do?

...o do is implement a custom container view controller - lets call it SideBarViewController - that swaps out which of several possible child view controllers it shows, almost exactly like a standard Tab Bar Controller . (It's pretty much a Tab Bar Controller but with a hideable side menu instea...
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What is your preferred style for naming variables in R? [closed]

Which conventions for naming variables and functions do you favor in R code? 9 Answers ...
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Are there any O(1/n) algorithms?

... seem. At least theoretically, something such as O(1/n) is completely sensible when we take the mathematical definition of the Big O notation: Now you can easily substitute g(x) for 1/x … it's obvious that the above definition still holds for some f. For the purpose of estimating asymptotic ru...
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Haskell: Where vs. Let

I am new to Haskell and I am very confused by Where vs. Let . They both seem to provide a similar purpose. I have read a few comparisons between Where vs. Let but I am having trouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstr...
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What is the difference between getFields and getDeclaredFields in Java reflection

I'm a little confused about the difference between the getFields method and the getDeclaredFields method when using Java reflection. ...
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What is the difference between UNION and UNION ALL?

What is the difference between UNION and UNION ALL ? 26 Answers 26 ...
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PHP filesize MB/KB conversion [duplicate]

...onvert the output of PHP's filesize() function to a nice format with MegaBytes, KiloBytes etc? 12 Answers ...