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C++ equivalent of Java's toString?
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In C++ you can overload operator<< for ostream and your custom class:
class A {
public:
int i;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.i << ")";
}
This way you can output instances ...
Using helpers in model: how do I include helper dependencies?
I'm writing a model that handles user input from a text area. Following the advice from http://blog.caboo.se/articles/2008/8/25/sanitize-your-users-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback.
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What does “Auto packing the repository for optimum performance” mean?
...I get this message: "Auto packing the repository for optimum performance", and it does not seem to go away and return the shell.
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What data is stored in Ephemeral Storage of Amazon EC2 instance?
I am trying to stop a Amazon EC2 instance and get the warning message
4 Answers
4
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Find a commit on GitHub given the commit hash
I am fairly new to Github and have come across an amateur-ish problem.
3 Answers
3
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How to set working/current directory in Vim?
So when I want to create a new file by using the :e command I don't want to specify the whole path, just the new filename. Can it be done?
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How are 3D games so efficient? [closed]
...ever understood. How can a great big PC game like GTA IV use 50% of my CPU and run at 60fps while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ?
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Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
...o check out such an entry from the index, the checkout operation will fail and nothing will be checked out. Using -f will ignore these unmerged entries. The contents from a specific side of the merge can be checked out of the index by using --ours or --theirs. With -m, changes made to the working tr...
Practical use of `stackalloc` keyword
... native allocator (like malloc or the .Net equivalent) you also gain speed and automatic deallocation on scope exit.
Performance wise, if you use stackalloc you greatly increase the chance of cache hits on the CPU due to the locality of data.
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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
...etely wrong. An actuator on an electron microscope went over its boundary, and after a chain of events I lost $12 million of equipment. I've narrowed down over 40K lines in the faulty module to this:
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