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c++ Programming Glossary: mightWhy 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 code runs in 1.93 seconds. Initially I thought this might be just a language or compiler anomaly. So I tried it in Java..
What 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 phases occur although in practice different phases might be folded together. The specified errors occur during this last..
What are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier While using these names for your own purposes right now might not cause a problem they do raise the possibility of conflict..
http://stackoverflow.com/questions/3106110/what-is-move-semantics we copy x is this deep copy really necessary because we might want to inspect x later and would be very surprised if x had.. this Huh that's it Where's the rvalue reference you might ask. We don't need it here is my answer Note that we pass the..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom that swaps two objects of a class member for member. We might be tempted to use std swap instead of providing our own but.. A failed solution Here's how a naive implementation might look the hard part dumb_array operator const dumb_array other.. a hassle. We should strive to never repeat ourselves. One might wonder if this much code is needed to manage one resource correctly..
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 problems and the opportunity to get speedup . Added It might not be obvious but the stack sampling technique works equally..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three programmers were in love with pointers. The person class might have looked like this class person char name int age public.. invalidated the class invariants and the next statement might throw an exception leaving the object in an invalid state ..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points Behaviour in Section §1.3.12 as behaviour such as might arise upon use of an erroneous program construct or erroneous..
http://stackoverflow.com/questions/4421706/operator-overloading for these 2 . 1 As with all rules of thumb sometimes there might be reasons to break this one too. If so do not forget that the.. work of postfix increment for built in types they might not be able to do the same for user defined types which could..
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 variables may have different types or function calls might end up calling different functions. Such constructs are generally.. is parsed boost function int f Possibly not because it might look obvious to a human reader. Not so for the compiler. Imagine.. compares the resulting bool against f . However as you might well know boost function in real life is a template so the compiler..
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 not authorized to be in and rummaging through a desk that might not even be there anymore C is not going to stop you. Safer.. to be just a fun little analogy but whatever. I thought it might be germane to update this a bit with a few more technical thoughts...
Where do I find the current C or C++ standard documents? http://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents . However in my opinion even though the draft versions might be very close to the final ratified versions of the standards..
Derived template-class access to base-class member-data http://stackoverflow.com/questions/1120833/derived-template-class-access-to-base-class-member-data in the method void Bar T BarFunc using Bar T _foo_arg Might not work in g IIRC std cout _foo_arg std endl This makes it..
How to render offscreen on OpenGL? [duplicate] http://stackoverflow.com/questions/12157646/how-to-render-offscreen-on-opengl a waste of your time glBindBuffer GL_PIXEL_PACK_BUFFER pbo Might not be necessary... pixel_data glMapBuffer GL_PIXEL_PACK_BUFFER..
C++ logging framework suggestions http://stackoverflow.com/questions/1736295/c-logging-framework-suggestions by hand or through a quick and dirty GUI or CLI app. Might be a bit harder to adjust these dynamically but not too bad...
Using unicode font in c++ console app http://stackoverflow.com/questions/1922294/using-unicode-font-in-c-console-app GENERIC_WRITE 0 NULL CONSOLE_TEXTMODE_BUFFER NULL Might i be setting the codepage for just the standard output or something..
basic playback with programmatically created windows media player http://stackoverflow.com/questions/1935964/basic-playback-with-programmatically-created-windows-media-player with WMP and this code runs in a multi threaded apartment. Might that be the problem If not what else could be preventing WMP..
Return a const reference or a copy in a getter function? http://stackoverflow.com/questions/2182408/return-a-const-reference-or-a-copy-in-a-getter-function a word to them Then you need to pass back a reference. Might be good if you can have a refcounted data member and return..
In what situation do you use a semaphore over a mutex in C++? http://stackoverflow.com/questions/2350544/in-what-situation-do-you-use-a-semaphore-over-a-mutex-in-c use a binary semaphore to protect a read write resource. Might not be a good idea though since a mutex often gives you better..
Could you recommend any open source projects where the source is extensively tested with unit tests? http://stackoverflow.com/questions/236156/could-you-recommend-any-open-source-projects-where-the-source-is-extensively-tes
http://stackoverflow.com/questions/2941424/echo-cancellation share improve this question Oslec is the best I know of. Might also look into the speex codec stack which includes an echo..
What is the simplest way to create and call dynamically a class method in C++? http://stackoverflow.com/questions/405432/what-is-the-simplest-way-to-create-and-call-dynamically-a-class-method-in-c from boost preprocessor function types and bind library. Might loop complicated but if you get the keys in that code it's not..
How expensive is it to dereference a pointer in C++? http://stackoverflow.com/questions/431469/how-expensive-is-it-to-dereference-a-pointer-in-c C with an int member n then something like this int n c n Might translate into one or two machine instructions and might load..
getting a normal ptr from shared_ptr? http://stackoverflow.com/questions/505143/getting-a-normal-ptr-from-shared-ptr pointer dereference but do not provide a get method. Might be useful in generic class template for example. share improve..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome v ttttNNNNNNNNNN ttttNNNNNNNNNN 1234My house 5678My house Might have these two address the leftmost is address 0 h1 4 h2 23..
http://stackoverflow.com/questions/6032638/default-variable-value int b Zero Initialized int main int i Undefined Behavior Might be Initialized to anything static int j Zero Initialized cout..
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