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GCC -g vs -g3 GDB Flag: What is the Difference?

... (DWARF 2, stabs, or the native format if neither of those are supported), including GDB extensions if at all possible. -gvmslevel Request debugging information and also use level to specify how much information. The default level is 2. Level 0 produces no debug information at all. Thus, -g0 nega...
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Quicksort: Choosing the pivot

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Why should the “PIMPL” idiom be used? [duplicate]

...hen only Cat.h is the file that is shipped with the product. CatImpl.h is included by Cat.cpp and CatImpl.cpp contains the implementation for CatImpl::Purr(). This won't be visible to the public using your product. Basically the idea is to hide as much as possible of the implementation from prying...
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Move capture in lambda

... of a helper function make_rref which helps with artificial move capture #include <cassert> #include <memory> #include <utility> template <typename T> struct rref_impl { rref_impl() = delete; rref_impl( T && x ) : x{std::move(x)} {} rref_impl( rref_impl ...
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Create tap-able “links” in the NSAttributedString of a UILabel?

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Sequence-zip function for c++11?

...ost::combine (the function exists in earlier versions but undocumented): #include <boost/range/combine.hpp> #include <vector> #include <list> #include <string> int main() { std::vector<int> a {4, 5, 6}; double b[] = {7, 8, 9}; std::list<std::string> ...
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How do I grep recursively?

...It is good to know that "-i" would make it case insensitive, and "-n" also include the line number for each matched result. – Sadegh Jan 23 '15 at 12:02 ...
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How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

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How to get file creation & modification date/times in Python?

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How to sort an array in descending order in Ruby

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