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Use of #pragma in C
...ng #pragma once at the top of your header file will ensure that it is only included once. Note that #pragma once is not standard C99, but supported by most modern compilers.
An alternative is to use include guards (e.g. #ifndef MY_FILE #define MY_FILE ... #endif /* MY_FILE */)
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'git add --patch' to include new files?
...new file: new.java
Untracked files:
(use "git add <file>..." to include in what will be committed)
another-new.java
(The real command has colors which I couldn't cut-and-paste here, so it's nicer than it seems)
Actually, the patch command of git add -i does the same as git add...
BaseException.message deprecated in Python 2.6
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How to implement the factory method pattern in C++ correctly
...e, evil? for example. So pointers are the only thing that's left, and that includes smart pointers too. In other words, factories are most useful when used with dynamic allocation, so you can do things like this:
class Abstract {
public:
virtual void do() = 0;
};
class Factory {
public:
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Iterate over object attributes in python
...alling dir on the object gives you back all the attributes of that object, including python special attributes. Although some object attributes are callable, such as methods.
>>> dir(obj)
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', '__hash__', '__i...
Difference between declaring variables before or in loop?
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Where do you include the jQuery library from? Google JSAPI? CDN?
There are a few ways to include jQuery and jQuery UI and I'm wondering what people are using?
16 Answers
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How to add a jar in External Libraries in android studio
...ild.gradle add in the dependencies section:
compile fileTree(dir: 'libs', include: ['*.jar'])
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Sass Variable in CSS calc() function
... // example: if size set to 14px, it will be 14px * 16 / 16 = 14px
@include media-breakpoint-down(lg) {
:root {
--size: #{$base-size};
}
}
// if it is bigger then XL it will set size rate to 24/16;
// example: if size set to 14px, it will be 14px * 24 / 16 = 2...