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c++ Programming Glossary: theoreticalHow to disambiguate function templates that differ only by return type? http://stackoverflow.com/questions/13684264/how-to-disambiguate-function-templates-that-differ-only-by-return-type same line of code. I am asking this question purely for theoretical learning purposes. Perhaps this code construct in real life..
C++ STL: should I store entire objects, or pointers to objects? http://stackoverflow.com/questions/141337/c-stl-should-i-store-entire-objects-or-pointers-to-objects this is somewhat short on details but I'm looking for the theoretical better answer if it exists since I know both of these solutions..
C++ high precision time measurement in Windows http://stackoverflow.com/questions/1825720/c-high-precision-time-measurement-in-windows article. rdtsc has the same problem This is not just a theoretical problem we ran into it with our application and had to conclude..
Can I use memcpy in C++ to copy classes that have no pointers or virtual functions http://stackoverflow.com/questions/3021333/can-i-use-memcpy-in-c-to-copy-classes-that-have-no-pointers-or-virtual-functio paging data in and out of secondary storage. The better theoretical solution would be to convert the class to a simple structure..
Why does std::basic_ios overload the unary logical negation operator? http://stackoverflow.com/questions/3222131/why-does-stdbasic-ios-overload-the-unary-logical-negation-operator them so metaprogramming C with templates was still a theoretical exercise and you made sure to check that operator new didn't..
http://stackoverflow.com/questions/437250/friend-scope-in-c data through the pointer Just to clarify This is a pure theoretical C language question not a design advice question. c friend..
http://stackoverflow.com/questions/5097383/integer-division-algorithm still doesn't reach O n is if I'm correct almost purely theoretical. @Avi Berger This doesn't actually seem to be exactly the same..
Is C# really slower than say C++? http://stackoverflow.com/questions/5326269/is-c-sharp-really-slower-than-say-c As a result this is a really long answer. From a purely theoretical viewpoint there's probably a simple answer to this there's probably.. awareness of the target environment which should at least theoretically offset this advantage. There's no question that this factor..
JIT compiler vs offline compilers http://stackoverflow.com/questions/538056/jit-compiler-vs-offline-compilers moment and can recompile hot code as necessary. That's not theoretical Java's HotSpot actually does this. JITters can optimize for..
How can C++ virtual functions be implemented except vtable? [duplicate] http://stackoverflow.com/questions/5417829/how-can-c-virtual-functions-be-implemented-except-vtable them in one big switch statement on the typeid field. The theoretical justifcation is that this replaces an indirect jump non predicatble..
How to achieve “virtual template function” in C++ http://stackoverflow.com/questions/5871722/how-to-achieve-virtual-template-function-in-c templates are not allowed and could not be realized even theoretically. To build a base class' virtual table there needs to be a.. vendors to implement this feature . But that's just a theoretical discussion in practice this is simply not allowed. The fact..
Pre & post increment operator behavior in C, C++, Java, & C# http://stackoverflow.com/questions/6457130/pre-post-increment-operator-behavior-in-c-c-java-c-sharp DISCLAIMER This is not a real world example. It is just a theoretical question of how these languages work. What exactly are the differences..
http://stackoverflow.com/questions/6873138/calling-private-method-in-c private method in C This is purely a theoretical question I know that if someone declares a method private you..
Why does the C++ standard algorithm “count” return a ptrdiff_t instead of size_t? http://stackoverflow.com/questions/7505083/why-does-the-c-standard-algorithm-count-return-a-ptrdiff-t-instead-of-size-t what if the count exceeds the range of ptrdiff_t since the theoretical possible size of an array can be size_t EDIT So far there is..
Variadic recursive preprocessor macros - is it possible? http://stackoverflow.com/questions/824639/variadic-recursive-preprocessor-macros-is-it-possible preprocessor macros is it possible I've run into a little theoretical problem. In a piece of code I'm maintaining there's a set of..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle to achieve 4 FLOPs per cycle How can the theoretical peak performance of 4 floating point operations double precision.. add 's and mul 's can be executed in parallel giving a theoretical max throughput of 4 flops per cycle. However I've not been able..
Compile a DLL in C/C++, then call it from another program http://stackoverflow.com/questions/847396/compile-a-dll-in-c-c-then-call-it-from-another-program pointer reference from the VB front end Can the DLL call a theoretical function in the front end Or have a function take a function..
multithreading on dual core machine? http://stackoverflow.com/questions/8809752/multithreading-on-dual-core-machine returned. This allows for a simple method to identify the theoretical maximum number of threads that should be used simultaneously..
Is self-initialization 'A a = a;' allowed? http://stackoverflow.com/questions/981714/is-self-initialization-a-a-a-allowed never be written at the first place but I am looking for a theoretical background. class A public A p new int A const A rv p new..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle 010 sum 2.22652 The machine is a Core i7 2600K @ 4.4 GHz. Theoretical SSE peak is 4 flops 4.4 GHz 17.6 GFlops . This code achieves.. FP Ops 7680000000000 FLOPs 6.55279e 010 sum 17.8122 Theoretical SSE peak is 4 flops 4 cores 4.4 GHz 70.4 GFlops. Actual is 65.5.. FP Ops 1920000000000 FLOPs 3.34099e 010 sum 4.45305 Theoretical AVX peak is 8 flops 4.4 GHz 35.2 GFlops . Actual is 33.4 GFlops..
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