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boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
... first key, then the second key if the first one is equal, etc. This order allows for partial searches where only the first keys are specified:
phonebook pb;
...
// look for all Whites
std::pair<phonebook::iterator,phonebook::iterator> p=
pb.equal_range(boost::make_tuple(std::string("Whi...
How to globally replace a forward slash in a JavaScript string?
How to globally replace a forward slash in a JavaScript string?
10 Answers
10
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Zoom in on a point (using scale and translate)
...-(zoomPointX * scalechange);
offsetY = -(zoomPointY * scalechange);
So really you can just pan over down and to the right when you zoom in, by a factor of how much you zoomed in, relative to the point you zoomed at.
shar...
How can I test https connections with Django as easily as I can non-https connections using 'runserv
...ifying middleman between your browser and the development server. Stunnel allows you to set up a lightweight server on your machine that accepts connections on a configured port, wraps them with SSL, and passes them along to some other server. We'll use this to open a stunnel port (8443) and pass ...
C# version of java's synchronized keyword?
... be thread-safe. Use YAGNI: only apply thread-safety when you know you actually are going to use it (and test it).
For the method-level stuff, there is [MethodImpl]:
[MethodImpl(MethodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}
This can also be used on accessors (properties ...
How to make shallow git submodules?
Is it possible to have shallow submodules? I have a superproject with several submodules, each with a long history, so it gets unnecessarily big dragging all that history.
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Any difference between First Class Function and High Order Function
...s the definitions are certainly subjective and open to debate, but I personally prefer to think that C only supports higher order functions (via function pointers). However, first-class functions are not supported because functions are inferior to other value types like int or char, in the sense tha...
TypeError: 'str' does not support the buffer interface
...ype. In py3 plaintext is only a string, and the method outfile.write() actually takes a byte array when outfile is opened in binary mode, so an exception is raised. Change the input to plaintext.encode('utf-8') to fix the problem. Read on if this bothers you.
In py2, the declaration for file.wri...
Hide options in a select list using jQuery
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You cannot do this x-browser. If I recall ie has issues. The easiest thing to do is keep a cloned copy of the select before you remove items, this allows you to easily remove and then append the missing items back.
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TypeScript with KnockoutJS
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(): number;
subscribe: (callback: (newValue: number) => void) => void;
}
interface ObservableString {
(newValue: string): void;
(): string;
subscribe: (callback: (newValue: str...