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c++ Programming Glossary: happenWhat is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one Use the object in some way. Destruction of the object happens depending on the policy the smart pointer class uses. Destruction.. the policy the smart pointer class uses. Destruction would happen even if DoSomething raises an exception The simplest policy..
How do malloc() and free() work? http://stackoverflow.com/questions/1119134/how-do-malloc-and-free-work is that you will get gaps in your heap and thus it can happen that you just finish of your 2 or 4 GB of virtual memory with.. additional data and with smaller sizes more fragmentation happens. The free list is also the first location malloc looks for.. it was in a total different location as the one in dump happened. It is like a time bomb. You know your next free or malloc..
C++ Accesses an Array out of bounds gives no error, why? http://stackoverflow.com/questions/1239938/c-accesses-an-array-out-of-bounds-gives-no-error-why whenever you encounter undefined behavior anything might happen. The application may crash it may freeze it may eject your CD.. to work correctly. The language simply says what should happen if you access the elements within the bounds of an array. It.. within the bounds of an array. It is left undefined what happens if you go out of bounds. It might seem to work today on your..
Why is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice some effort to fix especially if the function parameters happen to match. If you have used foo Blah and bar Quux then the introduction..
strange output in comparison of float with float literal http://stackoverflow.com/questions/1839422/strange-output-in-comparison-of-float-with-float-literal printf not equal Why is the output not equal Why does this happen c c floating point double precision share improve this question.. double precision share improve this question This happens because in your statement if f 0.7 the 0.7 is treated as a..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior behavior. Basically the standard allows anything to happen once you invoke undefined behavior even nasal demons . It does..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points message . In short undefined behaviour means anything can happen from daemons flying out of your nose to your girlfriend getting.. to do with the value which ends up being stored in i which happens over in i and so there's no good way to define either for our..
Testing stream.good() or !stream.eof() reads last line twice [duplicate] http://stackoverflow.com/questions/4324441/testing-stream-good-or-stream-eof-reads-last-line-twice here. But this reads the last line twice. Why does this happen and how do I fix it Something very similar happens with ifstream.. this happen and how do I fix it Something very similar happens with ifstream f x.txt string line while f.eof getline f line..
What's this STL vs. “C++ Standard Library” fight all about? [closed] http://stackoverflow.com/questions/5205491/whats-this-stl-vs-c-standard-library-fight-all-about STL is rarely used to refer to the bits of the stdlib that happen to be based on the SGI STL. People think it's the entire standard.. iterators and algorithms. When the standardisation happened the language committee designed parts of the C Standard Library..
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation operation you're specifying an operation that will happen sometime after that part of the expression is evaluated and..
Resolve circular dependencies in c++ http://stackoverflow.com/questions/625799/resolve-circular-dependencies-in-c between C classes in different header files can happen also in the same file . But fortunately this doesn't happen.. also in the same file . But fortunately this doesn't happen often enough for me to remember the solution to this problem.. remember the solution to this problem for the next time it happens again. So for the purposes of easy recall in the future I am..
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 haven't rented the room Well obviously that scenario can happen in the real world no problem. There is no mysterious force that.. contract which you broke . In this situation anything can happen . The book can be there you got lucky. Someone else's book can.. you are sneaking around. You don't know what is going to happen when you checked out of the hotel and stole a key to illegally..
Subclass/inherit standard containers? http://stackoverflow.com/questions/6806173/subclass-inherit-standard-containers you have to fix it in all three places which won't always happen which means bugs will take longer and not always get fixed.....
Which kind of pointer do I use when? http://stackoverflow.com/questions/8706192/which-kind-of-pointer-do-i-use-when to break cycles. Cycles with shared_ptr shouldn't normally happen two resources can't own each other. Note that Boost additionally..
What XML parser should I use in C++? http://stackoverflow.com/questions/9387610/what-xml-parser-should-i-use-in-c C datastructures as fast as this conversion can possibly happen. You have chosen RapidXML This XML parser is exactly what it.. even deal with pulling the file into memory how that happens is up to you. What it does deal with is parsing that into a..
What is the difference between char a[] = “string”; and char *p = “string”; http://stackoverflow.com/questions/9460260/what-is-the-difference-between-char-a-string-and-char-p-string pointed to. In the example above both a 3 and p 3 happen to be the character l but the compiler gets there differently...
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