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Header files for x86 SIMD intrinsics
...der name depends on your compiler and target architecture.
For Microsoft C++ (targeting x86, x86-64 or ARM) and Intel C/C++ Compiler for Windows use intrin.h
For gcc/clang/icc targeting x86/x86-64 use x86intrin.h
For gcc/clang/armcc targeting ARM with NEON use arm_neon.h
For gcc/clang/armcc target...
throw new std::exception vs throw std::exception
...ception object and to catch it by reference (usually const reference). The C++ language requires the compiler to generate the appropriate code to construct the exception object and to properly clean it up at the appropriate time.
Throwing a pointer to a dynamically allocated object is never a good ...
Python naming conventions for modules
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Windows versions, or DOS.
When an extension module written in C or C++ has an accompanying Python
module that provides a higher level (e.g. more object oriented)
interface, the C/C++ module has a leading underscore (e.g. _socket).
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Override compile flags for single files
...when this source file builds.
You should be able to countermand the -Weffc++ flag for foo.cpp by doing
set_source_files_properties(foo.cpp PROPERTIES COMPILE_FLAGS -Wno-effc++)
This should have the effect of adding -Wno-effc++ after -Weffc++ in the compiler command, and the latter setting wins....
Are Java static calls more or less expensive than non-static calls?
... near the optimization that Hotspot does), or some remembered trivia about C++ (in which a dynamic call uses one more memory access than a static call).
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Mutable vs immutable objects
... course that you're using a language which makes this a tenable opinion (C/C++ makes this very difficult, as does Java). In short: the advantages depend somewhat on your problem, but I would tend to prefer immutability.
sha...
Technically, why are processes in Erlang more efficient than OS threads?
...ystem. That's really what's wrong with programming languages like Java and C++. It's threads aren't in the programming language, threads are something in the operating system – and they inherit all the problems that they have in the operating system. One of the problems is granularity of the memor...
C/C++ macro string concatenation
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Just for the record, "s""1" is valid in C (and C++). They are two tokens (string literals) that the compiler would concat itself and threat as one token.
– Shahbaz
Jul 31 '12 at 9:24
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Wrapping a C library in Python: C, Cython or ctypes?
...marks on the various options.
I might be more hesitant if I had to wrap a C++ library with lots of classes/templates/etc. But ctypes works well with structs and can even callback into Python.
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Accessing private member variables from prototype-defined functions
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"scoping in reverse" is a C++ feature with the "friend" keyword. Esentially any function should define it's prototype as it's friend. Sadly this concept is C++ and not JS :(
– TWiStErRob
Sep 21 '13 at 18:22
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