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c++ Programming Glossary: wouldWhat is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix virtual ~B extern int x void foo int main x 0 foo Y y B b would generate the following errors with gcc home AbiSfw ccvvuHoX.o..
Why is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice that std cout and std cin are more proper. However they would always be vague as to why this is a bad practice. Why is using..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom to use std swap instead of providing our own but this would be impossible std swap uses the copy constructor and copy assignment.. construction and destruction of our class that std swap would entail. An in depth explanation The goal Let's consider a concrete.. occurs so most of the time this check is a waste. It would be better if the operator could work properly without it. The..
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 presence of recursion. The reason is that the time that would be saved by removal of an instruction is approximated by the..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three of the form x x . Without that check delete name would delete the array containing the source string because when you..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points this form then the posting on meta that started all this would be the place to do that. Answers to that question are monitored..
http://stackoverflow.com/questions/4421706/operator-overloading this form then the posting on meta that started all this would be the place to do that. Answers to that question are monitored.. the reading itself succeeded but the result is not what would be expected. Function call operator The function call operator.. comparison operators. However it is very unlikely that you would find a reasonable use case for these 2 . 1 As with all rules..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c this form then the posting on meta that started all this would be the place to do that. Answers to that question are monitored.. whenever it is deemed useful that is whenever an operation would fail on an array but succeed on a pointer. This conversion from.. example if you want to sort an array both of the following would work equally well std sort x 0 x n std sort x 0 x 0 n Note that..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong successful. if it wasn't the returned stream from operator would be converted to false and the loop wouldn't even be entered.. from operator would be converted to false and the loop wouldn't even be entered do stuff with correctly initialized data..
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 of locals it could use the heap. It doesn't because that would make the program slower. An implementation of C is not required.. room that you just vacated. It doesn't because again that would be expensive. An implementation of C is not required to ensure..
When is a C++ destructor called? http://stackoverflow.com/questions/10081429/when-is-a-c-destructor-called is a destructor called on an object in a linked list 3 Would you ever want to call a destructor manually c destructor .. all up to you to pick the pieces that do what you want. 3 Would you ever want to call a destructor manually Sure. One example..
http://stackoverflow.com/questions/179213/c-include-semantics compiler or standard library For each kind of headers 2.a Would you use or 2.b Would you include with TheProject TheHeader.hpp.. library For each kind of headers 2.a Would you use or 2.b Would you include with TheProject TheHeader.hpp or with TheHeader.hpp..
Developing C wrapper API for Object-Oriented C++ code http://stackoverflow.com/questions/2045774/developing-c-wrapper-api-for-object-oriented-c-code MyClass std string s ~MyClass int doSomething int j Would map to a C interface like this C header struct HMyClass An opaque..
http://stackoverflow.com/questions/2132273/what-does-malloc0-return does malloc 0 return What does malloc 0 returns Would the answer be same for realloc malloc 0 0 #include stdio.h #include.. is about realloc malloc 0 0 What does malloc 0 return Would the answer be same for realloc malloc 0 0 The standard says..
Which C++ graph library should I use? [closed] http://stackoverflow.com/questions/2751826/which-c-graph-library-should-i-use much. Lemon There seem to be no layout algorithms. igraph Would also work but OGDF seems to be easier to use. Why GML There..
What does 'unsigned temp:3' mean? [duplicate] http://stackoverflow.com/questions/2950029/what-does-unsigned-temp3-mean op_attached 1 and I'm unsure what would that mean. Would that effect the number of bytes to be allocated for this particular..
http://stackoverflow.com/questions/342772/convert-lptstr-to-char lptstr to char Would anyone happen to know how to convert type LPTSTR to char in..
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++? http://stackoverflow.com/questions/3457967/what-belongs-in-an-educational-tool-to-demonstrate-the-unwarranted-assumptions-p Which tests would be good and how should they look like Would you run the tests on the platforms you can get your hands on..
Undefined Behavior and Sequence Points Reloaded http://stackoverflow.com/questions/4638364/undefined-behavior-and-sequence-points-reloaded is Index which is defined later in this post see below . Would it still invoke undefined behavior If yes why Is it not equivalent..
Why is including “using namespace” into a header file a bad idea in C++? http://stackoverflow.com/questions/4872373/why-is-including-using-namespace-into-a-header-file-a-bad-idea-in-c include this header which often mean other header files. Would you please like to help me to comprehend the above statement..
Is it possible to emulate template<auto X>? http://stackoverflow.com/questions/5628121/is-it-possible-to-emulate-templateauto-x main Foo f f.bar int 5 f.bar decltype Baz bang Baz bang Would it be somehow possible to convert it to the following struct..
Vectors, structs and std::find http://stackoverflow.com/questions/589985/vectors-structs-and-stdfind Or write your own function object if you don't have boost. Would look like this struct find_id std unary_function monster bool..
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents? http://stackoverflow.com/questions/7241993/is-it-smart-to-replace-boostthread-and-boostmutex-with-c11-equivalents #include thread #include mutex and boost equivalents Would you consider a good idea to replace boost stuff with c 11 stuff...
When to use std::forward to forward arguments? http://stackoverflow.com/questions/7257144/when-to-use-stdforward-to-forward-arguments moving the memory and make it invalid for a second use Would the following code be ok template int val typename... Params..
Creating Library with backward compatible ABI that uses Boost http://stackoverflow.com/questions/836875/creating-library-with-backward-compatible-abi-that-uses-boost linked with it withing other namespace assuming that it Would not expose Boost API outside. Would keep stable private version.. assuming that it Would not expose Boost API outside. Would keep stable private version of exposed API. Is there any way..
Possible to call C++ code from C#? http://stackoverflow.com/questions/935664/possible-to-call-c-code-from-c Specifically C code such as the RakNet networking library Would really appreciate it if anyone could give me some pointers on..
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