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c++ Programming Glossary: wrongSystem(“pause”); - Why is it wrong? http://stackoverflow.com/questions/1107705/systempause-why-is-it-wrong &ldquo pause&rdquo Why is it wrong Here's a question that I don't quite understand The command..
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 go If you guessed right it continues on. If you guessed wrong the captain will stop back up and yell at you to flip the switch... every time the train will never have to stop. If you guess wrong too often the train will spend a lot of time stopping backing.. you guessed right you continue executing. If you guessed wrong you need to flush the pipeline and roll back to the branch...
Why is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice told by others on numerous occasions that my teacher was wrong in saying that we should have using namespace std in our programs..
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring like it usually does but will give you interesting read wrong results. Following KeithB's point in the comments here's a way..
What is the difference between an int and a long in C++? http://stackoverflow.com/questions/271076/what-is-the-difference-between-an-int-and-a-long-in-c between an int and a long in C Correct me if I am wrong int is 4 bytes with a range of values from 2 147 483 648 to..
http://stackoverflow.com/questions/2979209/using-fflushstdin
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom fails this will have been modified. Namely the size is wrong and the data is gone For a strong exception guarantee it would..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c str Do cool things to or using str return str So what's wrong with that Well the return type is std string so it means we're.. manage memory which adds extra complexity and might get it wrong leading to a memory leak i.e. not deleting object even though..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong is iostream eof inside a loop condition considered wrong I just found a comment in this answer saying that using iostream.. using iostream eof in a loop condition is almost certainly wrong . I generally use something like while cin n which I guess implicitly.. EOF why is checking for eof explicitly using iostream eof wrong How is it different from using scanf ... ... EOF in C which..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability be prepared that everything you think you know is possibly wrong. For example you have to consider that the filenames you use..
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 Most of the time. Until one day something truly awful goes wrong and the process explodes. This is problematic. There are a lot..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 without using CMake software. What am I doing wrong c c visual studio 2010 visual studio opencv share improve..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used share improve this question All of you are wrong. Read the question. Answer Use a Singleton if If you need to..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection filter the output because it's quiet messy or is my code wrong I'm interested in the four corner points of the paper for skew..
Is it good practice to NULL a pointer after deleting it? http://stackoverflow.com/questions/1931126/is-it-good-practice-to-null-a-pointer-after-deleting-it if you leave pointers around in user code you're Doing It Wrong. The pointer shouldn't be there to point to garbage in the first..
virtual inheritance [duplicate] http://stackoverflow.com/questions/419943/virtual-inheritance which both have inherited the Base Ambig function class Wrong public C public D public ... While you define the Wrong class.. Wrong public C public D public ... While you define the Wrong class above you actually created the DDD Diamond Derivation.. the DDD Diamond Derivation problem because you can't call Wrong wrong wrong.Ambig This is an ambiguous function because it's..
Android NDK R5 and support of C++ exception http://stackoverflow.com/questions/4663291/android-ndk-r5-and-support-of-c-exception __android_log_write ANDROID_LOG_DEBUG foobar trhown throw Wrong object type. catch char b __android_log_write ANDROID_LOG_DEBUG..
about “int const *p” and “const int *p ” http://stackoverflow.com/questions/5268521/about-int-const-p-and-const-int-p be initialized while declaration. int num 5 int const ptr Wrong ptr num Wrong int const ptr num ptr 100 However there is a third.. while declaration. int num 5 int const ptr Wrong ptr num Wrong int const ptr num ptr 100 However there is a third kind. Constant.. modified at later stages too. const int const p3 i1 p3 i2 Wrong In the above snippet p3 is a constant pointer to a constant..
eof() bad practice? [duplicate] http://stackoverflow.com/questions/5837639/eof-bad-practice or whether reading succeeded which are more common tests. Wrong while cin.eof cin foo Correct if cin foo if cin.eof cout read..
how to find memory leak in c++ code/project http://stackoverflow.com/questions/6261201/how-to-find-memory-leak-in-c-code-project Don't do something like this char one new char delete one Wrong char many new char 30 delete many Wrong 6 If the leak yet allowed.. char delete one Wrong char many new char 30 delete many Wrong 6 If the leak yet allowed I'm usually seeking it with deleaker..
http://stackoverflow.com/questions/8293426/error-invalid-initialization-of-non-const-reference-of-type-int-from-an-rval Don't do something like this char one new char delete one Wrong char many new char 30 delete many Wrong 6 If the leak yet allowed.. char delete one Wrong char many new char 30 delete many Wrong 6 If the leak yet allowed I'm usually seeking it with deleaker..
writing directly to std::string internal buffers http://stackoverflow.com/questions/1042940/writing-directly-to-stdstring-internal-buffers stringToFillIn.c_str stringToFillIn.size definitely WRONG FunctionInDLL const_cast char stringToFillIn.data stringToFillIn.size.. const_cast char stringToFillIn.data stringToFillIn.size WRONG FunctionInDLL stringToFillIn 0 stringToFillIn.size WRONG stringToFillIn.resize.. WRONG FunctionInDLL stringToFillIn 0 stringToFillIn.size WRONG stringToFillIn.resize strlen stringToFillIn.c_str The one that..
http://stackoverflow.com/questions/162941/why-use-pointers have had to put the in front printf Second char is s a 1 WRONG But this would not have just printed the second character but..
Use a regular iterator to iterate backwards, or struggle with reverse_iterator? http://stackoverflow.com/questions/1853358/use-a-regular-iterator-to-iterate-backwards-or-struggle-with-reverse-iterator pointing to the last A. std find foo.end foo.begin L'a' WRONG Buffer overrun Use whichever iterator results in clearer code...
Example of how to use boost upgradeable mutexes http://stackoverflow.com/questions/3896717/example-of-how-to-use-boost-upgradeable-mutexes it's no longer valid when you get to the write section. WRONG sorry. EDIT I think that explanation in boost is clear. Let's..
Best practices for use of C++ header files [closed] http://stackoverflow.com/questions/410516/best-practices-for-use-of-c-header-files sometimes but it's really the right thing to do. Examples WRONG using namespace std class MyClass string stringVar RIGHT class..
different types of initialization in C++ http://stackoverflow.com/questions/5845534/different-types-of-initialization-in-c declaration. Initialisation rules are a bit complex. T a WRONG this declares a function. T a Bog standard declaration with..
Value-initializing an automatic object? http://stackoverflow.com/questions/6298001/value-initializing-an-automatic-object typename T void MyClass T doSomething T valueInitialized WRONG This is a prototype ... My question is whether there is a nice..
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