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c++ Programming Glossary: causeIn C++, why use static_cast<int>(x) instead of (int)x? http://stackoverflow.com/questions/103512/in-c-why-use-static-castintx-instead-of-intx Flashing Lights in your code. The mere typing of it should cause you to feel VERY uncomfortable. That means that not only are..
http://stackoverflow.com/questions/1265039/using-std-namespace all sorts of names into the global namespace and can cause all sorts of non obvious ambiguities. Here are some common identifiers.. is ambiguous The error is typically long and unfriendly because std count is a template with some long nested types. This is.. template with some long nested types. This is OK though because std count goes into the global namespace and the function count..
Do-While and if-else statements in C/C++ macros http://stackoverflow.com/questions/154136/do-while-and-if-else-statements-in-c-c-macros help to wrap things in curly braces within the macro because the following is also syntactically incorrect. if corge f corge.. case the solution is to use something like do ... while to cause the macro to be a single statement that takes a semicolon without..
How come a non-const reference cannot bind to a temporary object? http://stackoverflow.com/questions/1565600/how-come-a-non-const-reference-cannot-bind-to-a-temporary-object It is clear that the lifetime of the object cannot be the cause because constant reference to an object is not prohibited by.. that the lifetime of the object cannot be the cause because constant reference to an object is not prohibited by C Standard... the temporary object is not constant in the sample above because calls to non constant functions are permitted. For instance..
http://stackoverflow.com/questions/162941/why-use-pointers be used where you can't use anything else. It is either because the lack of appropriate functionality missing data types or.. is of the type int. Imagine the problems you might cause if you were to use sprintf instead and assign this way too long.. end up writing over something else in the memory and cause your program to crash if you are lucky . Oh and if you don't..
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 Such names are also reserved in namespace std 17.4.3.1 . Because C is based on the C standard 1.1 2 C 03 and C99 is a normative.. these names for your own purposes right now might not cause a problem they do raise the possibility of conflict with future..
How to use Boost in Visual Studio 2010 http://stackoverflow.com/questions/2629421/how-to-use-boost-in-visual-studio-2010 Do note that such explicit Python specification currently cause MPI build to fail. So you'll need to do some separate building..
C++ Timer function to provide time in nano seconds http://stackoverflow.com/questions/275004/c-timer-function-to-provide-time-in-nano-seconds those chipset. Additionally some dual core AMDs may also cause a problem . See the second post by sebbbi where he states QueryPerformanceCounter..
std::vector is so much slower than plain arrays? http://stackoverflow.com/questions/3664272/stdvector-is-so-much-slower-than-plain-arrays array. IMO this difference is insignificant and could be caused by a whole bunch of things not associated with the test. I..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new values i.e. not too often are good since they typically cause early detection in code. For the case of no man's land and free.. VC 9 the value was changed to 0xFE . I assume that's because there could be situations where the fill operation would run..
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 stack. Call graphs don't give you the same information because 1 they don't summarize at the instruction level and 2 they give.. program and it seems to work better on bigger programs because they tend to have more problems to find. P.S. This can also.. software the more likely you are to find that that is the cause of performance problems and the opportunity to get speedup ...
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c and arguably worse than useless since using it could cause all sorts of funky errors So what's the solution We could create..
http://stackoverflow.com/questions/45135/linker-order-gcc Why does the order in which libraries are linked sometimes cause errors c gcc linker share improve this question There is..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers code uses container type traits which work for me but may cause unexpected behaviour with non container classes that provide..
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 ^ ^ overwritten The part that will most often cause crash is when you overwrite important parts of the data you.. to hide the fact that there is a number beneath just because the number itself does not really hold any meaning to you. It..
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 outOfMemHandler Request huge memory size that will cause operator new to fail int pBigDataArray new int 100000000L return..
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 analysis of this I believe this is at least partially caused by data alignment of the four pointers. This will cause some.. caused by data alignment of the four pointers. This will cause some level of cache bank way conflicts. If I've guessed correctly.. there is very likely possibility that this alignment causes false aliasing in the load store units or the cache. I Googled..
Why does the use of 'new' cause memory leaks? http://stackoverflow.com/questions/8839943/why-does-the-use-of-new-cause-memory-leaks does the use of 'new' cause memory leaks I learned C# first and now I'm starting with C.. old one pre C 11 named auto_ptr but it's now deprecated because it has a strange copying behaviour. And then there are some..
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