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Coding Practices which enable the compiler/optimizer to make a faster program

... Write to local variables and not output arguments! This can be a huge help for getting around aliasing slowdowns. For example, if your code looks like void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut) { for (int...
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How does lucene index documents?

...it is processed through the same analyzer that was used to build the index and then used to look up the matching term(s) in the index. That provides a list of documents that match the query. share | ...
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?

...ing CMake. Now the software has a few dependencies. I compiled them myself and installed them on my system. 4 Answers ...
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What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?

... the difference between __PRETTY_FUNCTION__ , __FUNCTION__ , __func__ , and where are they documented? How do I decide which one to use? ...
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List of ANSI color escape sequences

...s a series of semicolon-separated parameters. To say, make text red, bold, and underlined (we'll discuss many other options below) in C you might write: printf("\033[31;1;4mHello\033[0m"); In C++ you'd use std::cout<<"\033[31;1;4mHello\033[0m"; In Python3 you'd use print("\033[31;1;4mHello\0...
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How does LMAX's disruptor pattern work?

I am trying to understand the disruptor pattern . I have watched the InfoQ video and tried to read their paper. I understand there is a ring buffer involved, that it is initialized as an extremely large array to take advantage of cache locality, eliminate allocation of new memory. ...
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Remove sensitive files and their commits from Git history

...ect on GitHub but it contains certain files with sensitive data (usernames and passwords, like /config/deploy.rb for capistrano). ...
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Creating a daemon in Linux

In Linux I want to add a daemon that cannot be stopped and which monitors filesystem changes. If any changes are detected, it should write the path to the console where it was started plus a newline. ...
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Accessing inactive union member and undefined behavior?

...ce (other than answers claiming it's UB but without any support from the standard). 5 Answers ...
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Why should I not include cpp files and instead use a header?

So I finished my first C++ programming assignment and received my grade. But according to the grading, I lost marks for including cpp files instead of compiling and linking them . I'm not too clear on what that means. ...