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Xcode Project vs. Xcode Workspace - Differences

... an application or library) is built. They include build settings, such as compiler and linker flags, and they define which files (source code and resources) actually belong to a product. When you build/run, you always select one specific target. It is likely that you have a few targets that share ...
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How to see which plugins are making Vim slow?

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std::vector performance regression when enabling C++11

... also pass the -flto flag to gcc 4.7.2), the results are identical: (I am compiling your original code, with container.push_back(Item());) $ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out Performance counter stats for './a.out' (10 runs): 35.426793 task-clock ...
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Why doesn't c++ have &&= or ||= for booleans?

...forming C++ code. 1 Admittedly this is a rather big caveat as Angew’s comment illustrates: bool b = true; b &= 2; // yields `false`. The reason is that b & 2 performs integer promotion such that the expression is then equivalent to static_cast<int>(b) & 2, which results in ...
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Multiple select statements in Single query

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What does the M stand for in C# Decimal literal notation?

...were unambiguous (and it may well be, although "1e" ends up with a curious compiler error message suggesting it's out of the range of viable doubles, not that it's syntactically invalid; I suspect that's a bug) it would still be confusing. "c" would possibly make sense without causing any confusion,...
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Enable Vim Syntax Highlighting By Default

... options: Create an empty vimrc. Copy vimrc_example.vim as your vimrc (recommended, thanks @oyenamit). You can find vimrc_example.vim in the runtime directory. The location of the runtime directory varies between operating systems: On my system (Arch Linux, and Mac, thanks @totophe), it's in /...
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What's the idiomatic syntax for prepending to a short python list?

... The s.insert(0, x) form is the most common. Whenever you see it though, it may be time to consider using a collections.deque instead of a list. share | improv...
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How do browsers pause/change Javascript when tab or window is not active?

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What is the smallest possible valid PDF?

...rtxref 149 %EOF which is 291 bytes of PDF joy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec. However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out: %PDF-1.0 1 0 obj...