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c++ Programming Glossary: ourWhy is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice wrong in saying that we should have using namespace std in our programs and that std cout and std cin are more proper. However.. got a conflict Both Foo 2.0 and Bar import Quux into your global namespace. This is going to take some effort to fix especially..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom list of places where it was previously mentioned What are your favorite C Coding Style idioms Copy swap Copy constructor and.. Overview Why do we need it Any class that manages a resource a wrapper like a smart pointer needs to implement The Big.. We might be tempted to use std swap instead of providing our own but this would be impossible std swap uses the copy constructor..
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 code c unix profiling share improve this question If your goal is to use a profiler use one of the suggested ones. However.. if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow.. generality the more layers of abstraction you have in your software the more likely you are to find that that is the cause..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three constructor nor the assignment operator nor the destructor ourselves these are implicitly defined for us. Quote from the standard.. is also fine in this case since we did not acquire any resources in the constructor. The members' destructors are implicitly.. for X's direct ... members n3126.pdf 12.4 §6 Managing resources So when should we declare those special member functions..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points Points What is the relation between Undefined Behaviour and Sequence Points I often use funny and convoluted expressions.. where the FAQ idea started out in the first place so your answer is very likely to get read by those who came up with.. a separator between the arguments a and a . The behaviour is undefined in that case if a is considered to be a primitive..
http://stackoverflow.com/questions/4421706/operator-overloading where the FAQ idea started out in the first place so your answer is very likely to get read by those who came up with.. you get this boiler plate code right. If you fail either your operator ™s code won ™t compile or your users code won ™t compile.. If you fail either your operator ™s code won ™t compile or your users code won ™t compile or your users code will behave surprisingly...
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 at 14.6.2 1 . The typename keyword Let's get back to our initial problem how can we parse t x f The answer is In this.. In enough cases we need both of typename and template . Your code should look like the following template typename T typename..
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 You check out the next morning but forget to give back your key. You steal the key A week later you return to the hotel.. later you return to the hotel do not check in sneak into your old room with your stolen key and look in the drawer. Your book.. the hotel do not check in sneak into your old room with your stolen key and look in the drawer. Your book is still there...
Problems with Singleton Pattern http://stackoverflow.com/questions/1392315/problems-with-singleton-pattern programmers want to make their database class a singleton. Our application will never use two databases they typically think...
http://stackoverflow.com/questions/1437053/boost-advocacy-help-needed can't do this in standard C but you can do it with Boost Our toolkit includes some legacy RogeWave libraries and VERY limited..
Why aren't there compiler-generated swap() methods in C++0x? http://stackoverflow.com/questions/2078515/why-arent-there-compiler-generated-swap-methods-in-c0x redundant copy of all our data before discarding it later. Our custom swap function would just swap the pointer but can be..
C++: Get MAC address of network adapters on Vista? http://stackoverflow.com/questions/221894/c-get-mac-address-of-network-adapters-on-vista been reading the order of the adapters is bound to change. Our alternative method with SNMPExtensionQuery seems to be broken..
http://stackoverflow.com/questions/2528776/windows-c-is-it-possible-to-find-the-line-of-code-where-exception-was-thrown the place of an error that has occured on user computer Our project is compiled with Release configuration PDB file is generated...
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom Which leads us to the third problem code duplication. Our assignment operator effectively duplicates all the code we've..
Finding C++ static initialization order problems http://stackoverflow.com/questions/335369/finding-c-static-initialization-order-problems there's a static analysis tool that would catch this. Our platform is IBM XLC C compiler running on AIX. c initialization..
Hand Coded GUI Versus Qt Designer GUI http://stackoverflow.com/questions/387092/hand-coded-gui-versus-qt-designer-gui eyes bleed. c gui qt rad share improve this question Our experience with Designer started in Qt3. Qt3 At that point Designer..
http://stackoverflow.com/questions/419406/are-assertions-always-bad switch is set such that performance overhead is minimized. Our assert handler in this instance can be set to disabled silent..
How could one implement std::auto_ptr's copy constructor? http://stackoverflow.com/questions/4514124/how-could-one-implement-stdauto-ptrs-copy-constructor I think the code is mostly correct but it's untested. Our basic auto_int look something like this class auto_int public.. With this basic auto_int we can't copy a temporary object. Our goal is to be able to write something like auto_int p auto_int..
How to solve Memory Fragmentation http://stackoverflow.com/questions/60871/how-to-solve-memory-fragmentation thrown an exception due to a memory allocation failure. Our suspicion is these allocations are failing due to memory fragmentation... Heap 2 jemalloc as used in Firefox 3 3 Doug Lea's malloc Our server process is developed using cross platform C code so any..
http://stackoverflow.com/questions/610682/bss-section-in-elf-file is used to allocate space for zero initialized variables. Our tool chain produces ELF files hence my question does the .bss..
Are C++ static code analyis tools worth it? http://stackoverflow.com/questions/639694/are-c-static-code-analyis-tools-worth-it C static code analyis tools worth it Our management has recently been talking to some people selling..
How should I write ISO C++ Standard conformant custom new and delete operators? http://stackoverflow.com/questions/7194127/how-should-i-write-iso-c-standard-conformant-custom-new-and-delete-operators object type and used to access the object. Requirement #3 Our custom operator new must return a legitimate pointer even when..
http://stackoverflow.com/questions/755347/are-const-iterators-faster const_iterators faster Our coding guidelines say prefer const_iterator because they are..
Remote debugging with Eclipse CDT http://stackoverflow.com/questions/81194/remote-debugging-with-eclipse-cdt the net at http www.perzl.org aix index.php n Main.Gdb . Our Admin installed it. I can now step through the program and watch..
Is it possible to share an enum declaration between C# and unmanaged C++? http://stackoverflow.com/questions/954321/is-it-possible-to-share-an-enum-declaration-between-c-sharp-and-unmanaged-c in completely unmanaged code enum MyEnum myVal1 myVal2 Our application sometimes uses a managed component. That C# component..
In C++ is “const” after type ID acceptable? http://stackoverflow.com/questions/988069/in-c-is-const-after-type-id-acceptable 1 2 so I thought I'd give him a chance to catch up. Our latest disagreement is over the style issue of where to put..
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