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c++ Programming Glossary: supposeWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array Now for the sake of argument suppose this is back in the 1800s before long distance or radio communication...
http://stackoverflow.com/questions/12135518/is-faster-than are slight performance changes on loop complex code. I suppose this has to do something with generated machine code in case..
Difference between string and char[] types in C++ http://stackoverflow.com/questions/1287306/difference-between-string-and-char-types-in-c title return 0 both examples from http www.cplusplus.com I suppose this is a widely asked and answered obvious question but it..
C++ high precision time measurement in Windows http://stackoverflow.com/questions/1825720/c-high-precision-time-measurement-in-windows in microseconds at least . Any library should do unless I suppose it's possible with managed code. thanks c c windows share..
How could pairing new[] with delete possibly lead to memory leak only? http://stackoverflow.com/questions/1913343/how-could-pairing-new-with-delete-possibly-lead-to-memory-leak-only sizeof T where T is the type of elements of the array. Now suppose I implement delete as simply one call to the destructor followed..
What platforms have something other than 8-bit char? http://stackoverflow.com/questions/2098149/what-platforms-have-something-other-than-8-bit-char char is 16 bits. DSPs are a bit of a niche architecture I suppose. Then again at the time hand coded assembler easily beat what..
How to make SIMPLE C++ Makefile? http://stackoverflow.com/questions/2481269/how-to-make-simple-c-makefile support.hh and support.o which depend on root and are supposed to be compiled into a program called tool and suppose that.. are supposed to be compiled into a program called tool and suppose that you've been hacking on the source files and want to compile..
C++: Life span of temporary arguments? http://stackoverflow.com/questions/2506793/c-life-span-of-temporary-arguments getMyClass which unfortunately isn't very well known. I suppose C 11's move semantics will render it less useful though. share..
What's a very easy C++ profiler (VC++)? http://stackoverflow.com/questions/2624667/whats-a-very-easy-c-profiler-vc we're using I run standard edition personally . I don't suppose there are any tools in the IDE for this I can't see any from..
http://stackoverflow.com/questions/2712076/how-to-use-an-iterator The 2 points I stored in a vector in c 0 0 and 1 1 . I'm supposed to get results as 0 1.4 1.4 0 but the actual result that I.. implementations use a special iterator class for that. I suppose the reason is that using a class allows overloading functions..
How does dereferencing of a function pointer happen? http://stackoverflow.com/questions/2795575/how-does-dereferencing-of-a-function-pointer-happen as it would be a DATA memory. Function pointer isn't suppose to be dereferenced in that way. Instead it is called. I would..
Why don't the std::fstream classes take a std::string? http://stackoverflow.com/questions/32332/why-dont-the-stdfstream-classes-take-a-stdstring cycle which in turn may lead to problems. For example suppose std string would be convertible to a C string so that you could..
Optimizing away a “while(1);” in C++0x http://stackoverflow.com/questions/3592557/optimizing-away-a-while1-in-c0x X the behaviour is undefined . We can show this as follows suppose there exists a program which does not satisfy property X. Where..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux f of the time and thus costs that much . For simplicity suppose we don't know what f is but assume it is either 0.1 0.2 0.3.. so all of these costs are equally likely a priori. Then suppose we take just 2 stack samples and we see instruction I on both..
http://stackoverflow.com/questions/3960954/c-multicharacter-literal defined. I found they are widely used in C4 engine . But I suppose they are not safe when we are talking about platform independend..
How do I compile a Visual Studio project from the command-line? http://stackoverflow.com/questions/498106/how-do-i-compile-a-visual-studio-project-from-the-command-line returns immediately and does not print any output. I suppose that might be what you want for a script. Note that DevEnv is..
Why copying stringstream is not allowed? http://stackoverflow.com/questions/6010864/why-copying-stringstream-is-not-allowed any data at all. It is through which you get data. Now suppose for a while if making a copy of stream is allowed and you created..
casting unused return values to void http://stackoverflow.com/questions/689677/casting-unused-return-values-to-void of time Follow up Well that seems pretty comprehensive. I suppose it's better than commenting an unused return value since self..
http://stackoverflow.com/questions/994488/what-is-proxy-class-in-c a modified interface to another class. Here is an example suppose we have an array class that we we only want to be able to contain..
Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati C between copy initialization and direct initialization Suppose I have this function void my_test A a1 A_factory_func A a2 A_factory_func..
Why not use pointers for everything in C++? http://stackoverflow.com/questions/1064325/why-not-use-pointers-for-everything-in-c not use pointers for everything in C Suppose that I define some class class Pixel public Pixel x 0 y 0 int..
How can I efficiently select a Standard Library container in C++11? http://stackoverflow.com/questions/10699265/how-can-i-efficiently-select-a-standard-library-container-in-c11 to keep duplicates use a multi otherwise do not. Example Suppose that I have several persons with a unique ID associated to them..
http://stackoverflow.com/questions/145270/calling-c-c-from-python that has ctypes not just the one it was compiled against. Suppose you have a simple C example class you want to talk to in a file..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol and see why include guards do help with mutual inclusions. Suppose your mutually including a.h and b.h header files have trivial..
Visual C++ equivalent of GCC's __attribute__ ((__packed__)) http://stackoverflow.com/questions/1537964/visual-c-equivalent-of-gccs-attribute-packed PACKED Fundamentally packing is too platform dependent. Suppose your packed struct has 8 bit fields in it and consider some..
http://stackoverflow.com/questions/1666224/what-is-the-size-of-void p points to that byte and would p be incremented to 0x2346 Suppose p was 0x2345. I am talking about p and not p. c c share improve..
How could pairing new[] with delete possibly lead to memory leak only? http://stackoverflow.com/questions/1913343/how-could-pairing-new-with-delete-possibly-lead-to-memory-leak-only undefined behavior share improve this question Suppose I'm a C compiler and I implement my memory management like this..
Is there a simple script to convert C++ enum to string? http://stackoverflow.com/questions/201593/is-there-a-simple-script-to-convert-c-enum-to-string there a simple script to convert C enum to string Suppose we have some named enums enum MyEnum FOO BAR 0x50 What I googled..
How to make SIMPLE C++ Makefile? http://stackoverflow.com/questions/2481269/how-to-make-simple-c-makefile but I'm not going to talk about that. A Trivial Makefile Suppose that you have a directory containing tool tool.cc tool.o support.cc..
C++ catch blocks - catch exception by value or reference? [duplicate] http://stackoverflow.com/questions/2522299/c-catch-blocks-catch-exception-by-value-or-reference is problematic in the face of inheritance hierarchies. Suppose for your example that there is another type MyException which..
sum of elements in a `std::vector` http://stackoverflow.com/questions/3221812/sum-of-elements-in-a-stdvector of finding the sum of all the elements in a std vector Suppose I have a vector std vector int vector with a few elements in..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux ADDED Let me make a Bayesian explanation of how it works. Suppose there is some instruction I call or otherwise which is on the.. that f 0.5 is 92 up from the prior assumption of 60 . Suppose the prior assumptions are different. Suppose we assume P f 0.1.. of 60 . Suppose the prior assumptions are different. Suppose we assume P f 0.1 is .991 nearly certain and all the other possibilities..
Is it possible to emulate template<auto X>? http://stackoverflow.com/questions/5628121/is-it-possible-to-emulate-templateauto-x I want that to enable compile time passing of arguments. Suppose it's only for user convenience as one could always type out..
Random number generation in C++11 , how to generate , how do they work? [closed] http://stackoverflow.com/questions/7114043/random-number-generation-in-c11-how-to-generate-how-do-they-work pick a couple of interesting points Why equally likely Suppose you have a simple random number generator that generate the..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops is one loop so much slower than two loops Suppose a1 b1 c1 and d1 point to heap memory and my numerical code has..
Is it safe to delete a void pointer? http://stackoverflow.com/questions/941832/is-it-safe-to-delete-a-void-pointer it safe to delete a void pointer Suppose I have the following code void my_alloc size_t size return new..
Calling virtual functions inside constructors http://stackoverflow.com/questions/962132/calling-virtual-functions-inside-constructors virtual functions inside constructors Suppose I have two C classes class A public A fn virtual void fn _n..
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