c++ Programming Glossary: you're
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 well actually to the object or library that uses it . If you're using MSVS you'll see that projects generate .lib files. These..
What do the following phrases mean in C++: zero-, default- and value-initialization? http://stackoverflow.com/questions/1613341/what-do-the-following-phrases-mean-in-c-zero-default-and-value-initializat and sometimes it won't depending on whether the type you're newing up is a POD or if it's a class that contains POD members..
In what cases do I use malloc vs new? http://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-vs-new when I should use new delete in my real world programs. If you're a C expert please let me know any rules of thumb or conventions..
How to stop C++ console application from exiting immediately? http://stackoverflow.com/questions/2529617/how-to-stop-c-console-application-from-exiting-immediately and there's really no good way to work around that. If you're running with a debugger attached John Dibling's suggested solution..
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring char t std istreambuf_iterator char Not sure where you're getting the t.open file.txt r syntax from. As far as I know..
What does 'unsigned temp:3' mean? [duplicate] http://stackoverflow.com/questions/2950029/what-does-unsigned-temp3-mean advantage of this is that you can control the sizeof op if you're careful. the size of the structure will be the sum of the sizes..
What is move semantics? http://stackoverflow.com/questions/3106110/what-is-move-semantics Let's continue by implementing the assignment operator. If you're unfamiliar with the copy and swap idiom learn it and come back..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom note a remarkably useful guideline is as follows if you're going to make a copy of something in a function let the compiler..
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 use a profiler use one of the suggested ones. However if you're in a hurry and you can manually interrupt your program under..
std::wstring VS std::string http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring all UTF 16 will mostly use 2 bytes per characters unless you're dealing with some kind of esoteric language glyphs Klingon Elvish..
round() for float in C++ http://stackoverflow.com/questions/485525/round-for-float-in-c round to even which is less biased and generally better if you're going to do a lot of rounding. It's a bit more complex to implement..
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 your reference to your house. Without this piece of paper you're lost and cannot find the house unless you're already in it... of paper you're lost and cannot find the house unless you're already in it. var h THouse begin h THouse.Create 'My house'..
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new and sometimes it won't depending on whether the type you're newing up is a POD plain old data or if it's a class that contains..
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 something illegal and foolish like going back into a room you're not authorized to be in and rummaging through a desk that might..
How to generate a stacktrace when my gcc C++ app crashes http://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes this question For Linux and I believe Mac OS X if you're using gcc or any compiler that uses glibc you can use the backtrace..
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 really get a copy of the actual documents especially if you're planning on quoting them as references. Of course starving students..
Why does the use of 'new' cause memory leaks? http://stackoverflow.com/questions/8839943/why-does-the-use-of-new-cause-memory-leaks this question What is happening When you write T t you're creating an object of type T with automatic storage duration.. when it goes out of scope. When you write new T you're creating an object of type T with dynamic storage duration ... order to clean it up However your second example is worse you're dereferencing the pointer and making a copy of the object. This..
Are the days of passing const std::string & as a parameter over? http://stackoverflow.com/questions/10231349/are-the-days-of-passing-const-stdstring-as-a-parameter-over with `str`. Does not store it. All well and good. You're just passing pointers around no copying no moving everyone's..
How to overload std::swap() http://stackoverflow.com/questions/11562/how-to-overload-stdswap optimization stl c faq share improve this question You're not allowed by the C standard to overload std swap however you..
Examples of when a bitwise swap() is a bad idea? http://stackoverflow.com/questions/11638271/examples-of-when-a-bitwise-swap-is-a-bad-idea of when a bitwise swap is a bad idea You're not supposed to treat object pointers as pointers to raw binary..
Why use iterators instead of array indices? http://stackoverflow.com/questions/131241/why-use-iterators-instead-of-array-indices of iterators bring you closer to container independence. You're not making assumptions about random access ability or fast size..
Segmentation fault on large array sizes http://stackoverflow.com/questions/1847789/segmentation-fault-on-large-array-sizes arrays segmentation fault share improve this question You're probably just getting a stack overflow here. The array is too..
C/C++ function definitions without assembly http://stackoverflow.com/questions/2442966/c-c-function-definitions-without-assembly Thanks. c inline assembly share improve this question You're of course right that the rubber has to meet the road at some..
how to get vendor id and product id of a plugged usb device on windows http://stackoverflow.com/questions/2935184/how-to-get-vendor-id-and-product-id-of-a-plugged-usb-device-on-windows this with pointers to variable size structs. Edited to add You're really going about this the wrong way. I see you're following..
STL String to lower case http://stackoverflow.com/questions/313970/stl-string-to-lower-case Abc std transform data.begin data.end data.begin tolower You're really not going to get away with not iterating through each..
Value initialization and Non POD types http://stackoverflow.com/questions/3931312/value-initialization-and-non-pod-types However my answer was downvoted by Martin B . He said You're just lucky and are getting zeros because the memory that i was..
Superiority of unnamed namespace over static? http://stackoverflow.com/questions/4422507/superiority-of-unnamed-namespace-over-static keyword c namespaces share improve this question You're basically referring to the section 7.3.1.1 2 from the C Standard..
C++ - Forward declaration http://stackoverflow.com/questions/4757565/c-forward-declaration the other header which #includes the one you're writing. You're stuck in a chicken and egg situation with each header file trying..
Why would anybody use C over C++? [closed] http://stackoverflow.com/questions/497786/why-would-anybody-use-c-over-c coverage analysis etc Your target developers are C gurus You're writing drivers kernels or other low level code You know the..
Performance of built-in types : char vs short vs int vs. float vs. double http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double in computers because users are willing to pay for them. You're probably not willing to pay an extra 3 for your toaster to have..
What's preferred pattern for reading lines from a file in C++? http://stackoverflow.com/questions/7219062/whats-preferred-pattern-for-reading-lines-from-a-file-in-c getline would successfully read a line from the stream. You're going exactly in the opposite direction the fact is that if..
Of Memory Management, Heap Corruption, and C++ http://stackoverflow.com/questions/7525/of-memory-management-heap-corruption-and-c and started over Perhaps your make file is... suboptimal You're not assert ing enough in your code. How do I know that without..
Converting Between Local Times and GMT/UTC in C/C++ http://stackoverflow.com/questions/761791/converting-between-local-times-and-gmt-utc-in-c-c in C c c timezone dst share improve this question You're supposed to use combinations of gmtime localtime and timegm..
boost asio async_write : how to not interleaving async_write calls? http://stackoverflow.com/questions/7754695/boost-asio-async-write-how-to-not-interleaving-async-write-calls
Can't use modulus on doubles? http://stackoverflow.com/questions/9138790/cant-use-modulus-on-doubles improve this question The operator is for integers. You're looking for the fmod function . #include math.h int main double..
Check at Compile-Time if Template Argument is void http://stackoverflow.com/questions/9625526/check-at-compile-time-if-template-argument-is-void Args args ... Note that it works even when Res is void . You're allowed to return an expression returning void in a function..
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