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c++ Programming Glossary: andWhat can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux one of the suggested ones. However if you're in a hurry and you can manually interrupt your program under the debugger while.. to find performance problems. Just halt it several times and each time look at the call stack. If there is some code that.. of them the remaining ones will take a larger percentage and be easier to spot on subsequent passes. Caveat programmers tend..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three does copying an object mean What are the copy constructor and the copy assignment operator When do I need to declare them.. that objects are implicitly copied in various contexts and we should understand what copying an object actually means... implicitly copied in various contexts and we should understand what copying an object actually means. Let us consider a simple..
Why 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 the train to ask the captain which direction he wants. And then you set the switch appropriately. Trains are heavy and..
What is this weird colon-member syntax in the constructor? http://stackoverflow.com/questions/1711990/what-is-this-weird-colon-member-syntax-in-the-constructor Makes no sense for me. Perhaps someone could enlighten me. And by the way are there any other esoteric language features like..
http://stackoverflow.com/questions/236129/how-to-split-a-string-in-c iterator int main using namespace std string sentence And I feel fine... istringstream iss sentence copy istream_iterator..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom copy other.mArray other.mArray mSize mArray 3 return this And we say we're finished this now manages an array without leaks... operator dumb_array other 1 swap this other 2 return this And that's it With one fell swoop all three problems are elegantly.. longer have a performance penalty on non self assignments. And that is the copy and swap idiom. What about C 11 The next version..
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 tell us a lot about the cost of instructions that it sees. And it will see them with a frequency on average proportional to..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three a Bjarne Stroustrup 60 person b a What happens here b a And here If you are puzzled by the name name age age part this is..
http://stackoverflow.com/questions/4421706/operator-overloading most of it has already been said in GMan's famous Copy And Swap FAQ so I'll skip most of it here only listing the perfect.. you provide also provide if you provide do not omit etc. Andrew Koenig is said to have been the first to observe that the..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c n elements indexed from 0 to n 1 there is no element n . And yet to support half open ranges where the beginning is inclusive..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong entered do stuff with correctly initialized data hopefully And on your second question Because if scanf ... ... EOF is the..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords compiler that inUnion is a template id. But where exactly And should it then assume that inUnion is a class template i.e...
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new a difference between new A and new A because A is a POD. And there's a difference in behavior between C 98 and C 03 for the..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope foo int a 5 return a int main int p foo cout p p 8 cout p And the code is just running with no runtime exceptions The output.. to break them accidentally. I certainly have many times. And worse the problem often only surfaces when memory is detected.. C# always stored on the stack How does virtual memory work And many more topics in how the C# memory manager works. Many of..
What are the differences between struct and class in C++ http://stackoverflow.com/questions/92859/what-are-the-differences-between-struct-and-class-in-c and private is assumed when the class is declared class . And just for completeness' sake the more widely known difference..
http://stackoverflow.com/questions/1055661/bigint-bigbit-library integers and bit operations like bit shifting bitwise OR AND position first zero bit speed is crucial so it would have to..
http://stackoverflow.com/questions/1120140/csv-parser-in-c If you don't care about escaping comma and newline AND you can't embed comma and newline in quotes If you can't escape..
Global memory management in C++ in stack or heap? http://stackoverflow.com/questions/1169858/global-memory-management-in-c-in-stack-or-heap then read and bookmark these COMPILER ASSEMBLER LINKER AND LOADER A BRIEF STORY look at Table w.5 Anatomy of a Program..
http://stackoverflow.com/questions/12135518/is-faster-than the instructions one can assume that there would be simple AND OR gates on the different bits in EFLAGS to determine whether..
How to make generic computations over heterogeneous argument packs of a variadic template function? http://stackoverflow.com/questions/14261183/how-to-make-generic-computations-over-heterogeneous-argument-packs-of-a-variadic typename detail range_builder MIN MAX type CLASSES AND FUNCTIONS FOR REALIZING LOOPS ON ARGUMENT PACKS Implementation..
http://stackoverflow.com/questions/1494342/end-of-file-in-c while fin c_tmp gamma_tmp loop only eneterd if both c_tmp AND gamma_tmp can be retrieved from the file. cs_bit.push_back c_tmp..
How do I guarantee fast shutdown of my win32 app? http://stackoverflow.com/questions/209086/how-do-i-guarantee-fast-shutdown-of-my-win32-app OR you can wait on the event in your OVERLAPPED structure AND wait on your 'all threads please shutdown now' event as well...
Purpose of Unions in C and C++ http://stackoverflow.com/questions/2310483/purpose-of-unions-in-c-and-c with an intention of understanding the purpose of unions AND not on what the standard allows E.g. Using inheritance for code..
http://stackoverflow.com/questions/2901694/programatically-detect-number-of-physical-processors-cores-or-if-hyper-threading I'll have to detect if hyper treading is supported AND active. My question therefore is if there is a way to detect.. is a way to detect whether hyperthreading is supported AND ENABLED If so how exactly. c windows osx assembly hyperthreading..
What's the meaning of * and & when applied to variable names? http://stackoverflow.com/questions/3350626/whats-the-meaning-of-and-when-applied-to-variable-names are also the binary infix operators and meaning bitwise AND and multiplication . And to add insult to injury in C you can..
Use of typename keyword with template function parameters http://stackoverflow.com/questions/4347730/use-of-typename-keyword-with-template-function-parameters a variable of type void that is initialized by a bit wise AND expression. The entire declaration would be templated. Of course..
How do you set, clear and toggle a single bit in C/C++? http://stackoverflow.com/questions/47981/how-do-you-set-clear-and-toggle-a-single-bit-in-c-c 1 x That will set bit x . Clearing a bit Use the bitwise AND operator to clear a bit. number ~ 1 x That will clear bit x.. invert the bit string with the bitwise NOT operator ~ then AND it. Toggling a bit The XOR operator ^ can be used to toggle.. ask for this but I might as well add it. To check a bit AND it with the bit you want to check bit number 1 x That will put..
Calculating and printing factorial at compile time in C++ http://stackoverflow.com/questions/4977715/calculating-and-printing-factorial-at-compile-time-in-c asked for a clever trick to both print the factorial AND let the compilation continue. Here is one attempt. It doesn't..
How to implement the factory pattern in C++ correctly http://stackoverflow.com/questions/5120768/how-to-implement-the-factory-pattern-in-c-correctly prone. I like it that way. Having to drop that convention AND changing the design of my object just for the purpose of making..
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation evaluation of the left and right operands of the logical AND logical OR and comma operators. For example in the expression..
How do I build an import library (.lib) AND a DLL in Visual C++? http://stackoverflow.com/questions/584041/how-do-i-build-an-import-library-lib-and-a-dll-in-visual-c do I build an import library .lib AND a DLL in Visual C I want to have a single Visual Studio project..
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