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Is 'switch' faster than 'if'?
... your specific questions:
Clang generates one that looks like this:
test_switch(char): # @test_switch(char)
movl %edi, %eax
cmpl $19, %edi
jbe .LBB0_1
retq
.LBB0_1:
jmpq *.LJTI0_0(,%rax,8)
jmp void call<0u&g...
Log4net rolling daily filename with date in the file name
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add a comment
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207
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Set custom HTML5 required field validation message
... a nice configurable snippet I came up with:
/**
* @author ComFreek <https://stackoverflow.com/users/603003/comfreek>
* @link https://stackoverflow.com/a/16069817/603003
* @license MIT 2013-2015 ComFreek
* @license[dual licensed] CC BY-SA 3.0 2013-2015 ComFreek
* You MUST retain thi...
How to change current working directory using a batch file
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
把数据保存成 CSV 文件并分享出去 · App Inventor 2 中文网
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准备
拖两个文本输入框：文本输入框_项目（提示「项目」）、文本输入框_金额（提示「金额」，勾选「仅限数字」）。
拖三个按钮：按钮_记一笔、按钮_导出、按钮_导入，再拖一个标签 标签1 显示状态。
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bash: pip: command not found
...ut before it even tries to find anything online I get an error "bash: pip: command not found".
29 Answers
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Close iOS Keyboard by touching anywhere using Swift
...= UITapGestureRecognizer(target: self, action: "dismissKeyboard")
//Uncomment the line below if you want the tap not not interfere and cancel other interactions.
//tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
//Calls this function when the tap is recognized.
@obj...
Get the client's IP address in socket.io
...P address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.
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How to print a dictionary line by line in Python?
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I do print(json.dumps(cars, indent=4, ensure_ascii=False)) because otherwise non-ASCII characters are unreadable.
– Boris
Apr 22 at 16:36
add a ...
Safely override C++ virtual functions
...o override that function in a derived class. Is there some way to make the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures that I didn't accidentally declare a new function, inste...