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What should main() return in C and C++?
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The return value for main indicates how the program exited. Normal exit is represented by a 0 return value from main. Abnormal exit is signaled by a non-zero return, but there is no standard for how non-zero codes are interpreted. As noted by...
Switching between GCC and Clang/LLVM using CMake
...make -DCMAKE_USER_MAKE_RULES_OVERRIDE=~/ClangOverrides.txt ..
Finally to force the use of the LLVM binutils, set the internal variable _CMAKE_TOOLCHAIN_PREFIX. This variable is honored by the CMakeFindBinUtils module:
$ cmake -D_CMAKE_TOOLCHAIN_PREFIX=llvm- ..
Putting this all together you can ...
Concurrent.futures vs Multiprocessing in Python 3
...PU-bound tasks go, that's way too under-specified to say much meaningful. For CPU-bound tasks under CPython, you need multiple processes rather than multiple threads to have any chance of getting a speedup. But how much (if any) of a speedup you get depends on the details of your hardware, your OS...
How do you get a Golang program to print the line number of the error it just called?
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So, for this to work I only need to set that at the top of one of the package files and it will available for all my files for that package?
– Pinocchio
Jul 17 '14 at 18:31
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How to convert a Drawable to a Bitmap?
...e from? I couldn't find any Drawable function related to strings... thanks for your help.
– Rob
Jun 14 '10 at 9:08
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How do I run a Ruby file in a Rails environment?
... name and arguments. I'm pretty sure this is possible since I've done it before. Can someone remind me how to do this?
4 An...
Determine if variable is defined in Python [duplicate]
...ally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
There are at least three popular libraries for accessing and manipulating fields of records. The ones I know of are: data-accessor, fclabels and lenses.
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How do I add a path to PYTHONPATH in virtualenv
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Unfortunately this does not work as an override. It appends the path, so if you're developing it doesn't work.
– Erik Aronesty
Aug 29 '18 at 21:34
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Why is Scala's immutable Set not covariant in its type?
...terable[A]
In short, the best solution is to keep things invariant, even for the immutable data structure. You'll notice that immutable.Map is also invariant in one of its type parameters.
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