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What happens to a detached thread when main() exits?
...n signal handlers may execute ([basic.start.term]/1, 1st sentence). Of the C++ standard library, that is only the <atomic> library ([support.runtime]/9, 2nd sentence). In particular, that—in general—excludes condition_variable (it's implementation-defined whether that is save to use in a s...
Why does C++11's lambda require “mutable” keyword for capture-by-value, by default?
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This is a good point. I totally agree. In C++0x though, I don't quite see how the default helps enforce the above. Consider I am on the receiving end of the lambda, e.g. I am void f(const std::function<int(int)> g). How am I guaranteed that g is actually refere...
Why do you have to link the math library in C?
...or this libm/libc split, none of them very convincing.
Interestingly, the C++ runtime libstdc++ requires libm, so if you compile a C++ program with GCC (g++), you will automatically get libm linked in.
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What Every Programmer Should Know About Memory?
...the benchmarks). See also other x86 performance-tuning and SSE/asm (and C/C++) optimization links in the x86 tag wiki. (Ulrich's article isn't x86 specific, but most (all) of his benchmarks are on x86 hardware.)
The low level hardware details about how DRAM and caches work all still apply. DDR4...
Can I implement an autonomous `self` member type in C++?
C++ lacks the equivalent of PHP's self keyword , which evaluates to the type of the enclosing class.
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Objective-C categories in static library
... entirely ignored in the linking process.
This works quite well for C and C++ code, as these languages try to do as much as possible at compile time (though C++ also has some runtime-only features). Obj-C, however, is a different kind of language. Obj-C heavily depends on runtime features and many ...
Why does the indexing start with zero in 'C'?
... is. Even if 1-based indexes offered some advantage, it's in the spirit of C++ to choose performance over convenience. C++ is sometimes used in contexts where every last bit of performance matters, and these "small" things can quickly add up.
– Branko Dimitrijevic
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Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?
...d line to run your unit tests)
It causes VS2010 not to be able to compile C++ projects, failing with a link error. Even after uninstalling VS2012 RC, this problem still persists... so I'd advise strongly against installing it right now
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How do I enable C++11 in gcc?
...://hpc.sourceforge.net on Mac OSX Mountain Lion. I am trying to compile a C++ program which uses the to_string function in <string> . I need to use the flag -std=c++11 every time:
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What is Turing Complete?
... what JS doesn't have. (asm.js should be mentioned here) . Java ,Python or C++ are true 'Turing Complete ' examples. But js? I don't think so.
– Michael IV
Dec 19 '17 at 22:30
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