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How to detect when cancel is clicked on file input?
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document.body.onfocus = function(){ /*rock it*/ }
What's nice about this, is that you can attach/detach it in time with the file event, and it also seems to work fine with hidden inputs (a definite perk if you're using a visual workaround for the crappy default input type='file'). After that, y...
How much is the overhead of smart pointers compared to normal pointers in C++?
How much is the overhead of smart pointers compared to normal pointers in C++11? In other words, is my code going to be slower if I use smart pointers, and if so, how much slower?
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In Functional Programming, what is a functor?
...ticle ) or incredibly vague descriptions (see the section on Functors at this ocaml-tutorial website ).
17 Answers
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How can building a heap be O(n) time complexity?
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I think there are several questions buried in this topic:
How do you implement buildHeap so it runs in O(n) time?
How do you show that buildHeap runs in O(n) time when implemented correctly?
Why doesn't that same logic work to make heap sort run in O(n) time rather than O...
(-2147483648> 0) returns true in C++?
-2147483648 is the smallest integer for integer type with 32 bits, but it seems that it will overflow in the if(...) sentence:
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How line ending conversions work with git core.autocrlf between different operating systems
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The best explanation of how core.autocrlf works is found on the gitattributes man page, in the text attribute section.
This is how core.autocrlf appears to work currently (or at least since v1.7.2 from what I am aware):
core.autocrlf = true
Text files checked-out from t...
Multiple working directories with Git?
I'm not sure if this is something supported by Git, but in theory it seems like it should work to me.
4 Answers
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403 Forbidden vs 401 Unauthorized HTTP responses
For a web page that exists, but for which a user does not have sufficient privileges (they are not logged in or do not belong to the proper user group), what is the proper HTTP response to serve?
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MFC CString::Format()函数详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...而且每个参数可以不同。
如以下例子：
Format("my name is %6s","wind");
返回后就是
my name is wind
现在来看Format参数的详细情况：
Format里面可以写普通的字符串，比如"my name is"
但有些格式指令字符具有特殊意义，比如"%6...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
The limit of int is from -2147483648 to 2147483647.
5 Answers
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