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c++ Programming Glossary: uponSystem(“pause”); - Why is it wrong? http://stackoverflow.com/questions/1107705/systempause-why-is-it-wrong c security share improve this question It's frowned upon because it's a platform specific hack that has nothing to do..
Why is the cplusplus website bad? [closed] http://stackoverflow.com/questions/11972076/why-is-the-cplusplus-website-bad However I was looking for good alternatives and I stumbled upon this question Good reference for C iostreams There one of the..
What is the difference between NULL, '\0' and 0 http://stackoverflow.com/questions/1296843/what-is-the-difference-between-null-0-and-0 constant literal 0 has different meanings depending upon the context in which it's used. In all cases it is still an.. NULL is provided in the header file stddef.h . Depending upon your compiler it might be possible to #undef NULL and redefine..
Problems with Singleton Pattern http://stackoverflow.com/questions/1392315/problems-with-singleton-pattern unlocked the singleton. And if the threads depend greatly upon the singleton then you will degrade performance to a single..
Difference between files writen in binary and text mode http://stackoverflow.com/questions/229924/difference-between-files-writen-in-binary-and-text-mode CPM something about the sins of the parents being visited upon their children up to the 3rd or 4th generation . Contrary to..
Does the size of an int depend on the compiler and/or processor? http://stackoverflow.com/questions/2331751/does-the-size-of-an-int-depend-on-the-compiler-and-or-processor an interview question would the size of an integer depend upon the compiler or processor c c types share improve this question..
http://stackoverflow.com/questions/2660633/declaring-pointers-asterisk-on-the-left-or-right-of-the-space-between-the-type This is how I learned to declare pointers. One day I came upon a bit of code with multiple alike pointers and I tried to declare..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom that the copy is made we are ready to swap. Observe that upon entering the function that all the new data is already allocated.. old data is then released when the function returns. Where upon the parameter's scope ends and its destructor is called. Because..
Convert std::string to const char* or char* http://stackoverflow.com/questions/347949/convert-stdstring-to-const-char-or-char boost scoped_array will delete the memory for you upon going out of scope std string str boost scoped_array char writable..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c may be forced to accept a performance penalty depending upon use case . And if you're lazy it still may not work properly...
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points in Section §1.3.12 as behaviour such as might arise upon use of an erroneous program construct or erroneous data for..
What C++ Smart Pointer Implementations are available? http://stackoverflow.com/questions/5026197/what-c-smart-pointer-implementations-are-available facilities. The first downside being that it calls delete upon destruction making them unacceptable for holding array allocated..
Gui toolkits, which should I use? [closed] http://stackoverflow.com/questions/584734/gui-toolkits-which-should-i-use qwt.sourceforge.net provides what you need. It is built upon Qt. Qt can even be used headless if you want its utility support..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability handled by iconv are universally understood and agreed upon with one exception. The bridge between the portable encoding..
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible should `new` be used as little as possible I stumbled upon the Stack Overflow question Memory leak with std string when..
http://stackoverflow.com/questions/671703/array-index-out-of-bound-in-c case you are declaring a stack based array. Depending upon the particular implementation accessing outside the bounds of..
Is pass-by-value a reasonable default in C++11? http://stackoverflow.com/questions/7592630/is-pass-by-value-a-reasonable-default-in-c11 methods is slow for large objects and is generally frowned upon. Instead C programmers tend to pass references around which..
Why does the use of 'new' cause memory leaks? http://stackoverflow.com/questions/8839943/why-does-the-use-of-new-cause-memory-leaks T pointer pointer pointer destructor gets called upon cleanup in this case we want to use delete ~automatic_pointer..
Cancel async_read due to timeout http://stackoverflow.com/questions/10858719/cancel-async-read-due-to-timeout handlers in the io_service when async_read_helper returns. Upon the next call to async_read_helper the next handler to be invoked..
gcc/g++: “No such file or directory” http://stackoverflow.com/questions/12919081/gcc-g-no-such-file-or-directory compiler just tried to compile the file named foo.cc . Upon hitting line number line the compiler finds #include bar or..
http://stackoverflow.com/questions/14833553/reading-a-video-with-opencv RGB through cvCvtColor with CV_YCrCb2RGB or CV_RGBYCrCb . Upon examining your question again I noticed you didn't specify the..
Cannot open include file “AIUtilities.h”: No such file or directory. But it exists? http://stackoverflow.com/questions/1578829/cannot-open-include-file-aiutilities-h-no-such-file-or-directory-but-it-exis CoreUtilities Functionname to AIUtilities Functionname . Upon compile I recieved the error given in the title. Why How can..
Where to delete QTcpSocket in thread to avoid valgrind errors http://stackoverflow.com/questions/19280903/where-to-delete-qtcpsocket-in-thread-to-avoid-valgrind-errors to readyRead and disconnected signals from the socket. Upon disconnection it deletes itself. This is not really a telnet..
http://stackoverflow.com/questions/2244822/glibc-detected-error in main ac 4 av 0x7fff93a31d48 at kprank_new3_norm.cpp 577 Upon entering the command frame 15 in gdb I get gdb frame 15 #15..
Boost.Thread throws bad_alloc exception in VS2010 http://stackoverflow.com/questions/2914666/boost-thread-throws-bad-alloc-exception-in-vs2010 throws bad_alloc exception in VS2010 Upon including boost thread.hpp I get this exception First chance..
Are there any downsides to using UPX to compress a Windows executable? http://stackoverflow.com/questions/353634/are-there-any-downsides-to-using-upx-to-compress-a-windows-executable there are downsides to using EXE compressors. Most notably Upon startup of a compressed EXE DLL all of the code is decompressed..
Will a “variableName;” C++ statement be a no-op at all times? http://stackoverflow.com/questions/4030959/will-a-variablename-c-statement-be-a-no-op-at-all-times indeed guaranteed no effect but I posted without testing. Upon testing it generates a warning again at least in MSVC 2010 because..
What happens when a computer program runs? http://stackoverflow.com/questions/5162580/what-happens-when-a-computer-program-runs But most of the general areas were still there. Upon loading the program and necessary shared libs into memory and..
How to get unique hardware/software signature from a windows pc in c/c++ http://stackoverflow.com/questions/534215/how-to-get-unique-hardware-software-signature-from-a-windows-pc-in-c-c the signed with your private key version of this hash. Upon start up your application is able to check if the signature..
QT/C++ - Accessing MainWindow UI from a different class http://stackoverflow.com/questions/5920527/qt-c-accessing-mainwindow-ui-from-a-different-class It seems that this approach was very wrong though. Upon trying to run the project in QtDesigner I get a Microsoft Visual..
'Unresolved external symbol' errors http://stackoverflow.com/questions/6153765/unresolved-external-symbol-errors I copy the folders 'osc' and 'ip' into my project folder. Upon running I receive the following errors 1 Build started Project..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops optimization vectorization share improve this question Upon further analysis of this I believe this is at least partially..
Virtual destructor and undefined behavior http://stackoverflow.com/questions/8599225/virtual-destructor-and-undefined-behavior What if ~D is empty. Will it affect the code in any way Upon using new delete with B p the ~D will certainly not get called..
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