c++ Programming Glossary: returns
Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati A a2 A_factory_func Depends on what type A_factory_func returns. I assume it returns an A then it's doing the same except that.. Depends on what type A_factory_func returns. I assume it returns an A then it's doing the same except that when the copy constructor.. creates a function declaration for a function c3 that returns an A and that takes a function pointer to a function reurning..
Why do people say there is modulo bias when using a random number generator? http://stackoverflow.com/questions/10984974/why-do-people-say-there-is-modulo-bias-when-using-a-random-number-generator numbers between 0 and 2 with equal probability When rand returns 0 3 6 or 9 rand 3 0 . When rand returns 1 4 7 or 10 rand 3 1.. When rand returns 0 3 6 or 9 rand 3 0 . When rand returns 1 4 7 or 10 rand 3 1 . When rand returns 2 5 or 8 rand 3 2 ... 3 0 . When rand returns 1 4 7 or 10 rand 3 1 . When rand returns 2 5 or 8 rand 3 2 . Now if we analyze this statistically we..
Most vexing parse: why doesn't A a(()); work? http://stackoverflow.com/questions/1424510/most-vexing-parse-why-doesnt-a-a-work a returning an A taking a pointer to a function which returns B and itself takes no parameters. Similarly the line A a declares..
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 const reference to a temporary object which function getx returns Clearly this is prohibited by C Standard but I am interested.. to const reference the compiler doesn't know what ref returns . This is just a guess however. 2 I stated the purpose clearly..
C state-machine design http://stackoverflow.com/questions/1647631/c-state-machine-design of a state and event for lookup and a function that returns the new state something like typedef struct int st int ev int..
Get the IP address of the machine http://stackoverflow.com/questions/212528/get-the-ip-address-of-the-machine you should also check the getifaddrs was successful ie returns 0 . I've updated it show IPv6 addresses too. #include stdio.h..
What is the difference between new/delete and malloc/free? http://stackoverflow.com/questions/240212/what-is-the-difference-between-new-delete-and-malloc-free Returns a fully typed pointer. new standard version never returns a NULL will throw on failure Are called with Type ID compiler..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast if ExprStm e dynamic_cast ExprStm stm ... dynamic_cast returns a null pointer if the object referred to doesn't contain the..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom temporary. The old data is then released when the function returns. Where upon the parameter's scope ends and its destructor is..
Operator overloading http://stackoverflow.com/questions/4421706/operator-overloading X operator X lhs const X rhs lhs rhs return lhs operator returns its result per reference while operator returns a copy of its.. operator returns its result per reference while operator returns a copy of its result. Of course returning a reference is usually..
How to convert a number to string and vice versa in C++ http://stackoverflow.com/questions/5290089/how-to-convert-a-number-to-string-and-vice-versa-in-c theNumberString ostr.str the str function of the stream returns the string. now theNumberString is 1234 Note that you can use..
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 http blogs.msdn.com b ericlippert archive 2011 06 23 ref returns and ref locals.aspx Why do we use stacks to manage memory Are..
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible want to write a function string readfile string path that returns the contents of a file. In this case even if the stack could..
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 is a typedef for a pointer to a function that takes and returns nothing and set_new_handler is a function that takes and returns.. nothing and set_new_handler is a function that takes and returns a new_handler . set_new_handler 's parameter is a pointer to..
How to implement serialization in C++ http://stackoverflow.com/questions/1809670/how-to-implement-serialization-in-c std make_pair K CreateObjectFunc id createObject S Returns true if a given key exists @param id the id to check exists..
How to Calculate Execution Time of a Code Snippet in C++ http://stackoverflow.com/questions/1861294/how-to-calculate-execution-time-of-a-code-snippet-in-c Windows.h #else #include sys time.h #include ctime #endif Returns the amount of milliseconds elapsed since the UNIX epoch. Works..
Does “&s[0]” point to contiguous characters in a std::string? http://stackoverflow.com/questions/1986966/does-s0-point-to-contiguous-characters-in-a-stdstring or str.begin but for s 0 the standard defines operator as Returns If pos size returns data pos . Otherwise if pos size the const.. occur if strLength 0. Continuing on data is defined as Returns ... a pointer to the initial element of an array whose first..
What is the difference between new/delete and malloc/free? http://stackoverflow.com/questions/240212/what-is-the-difference-between-new-delete-and-malloc-free Allocate release memory Memory allocated from 'Free Store' Returns a fully typed pointer. new standard version never returns a.. free Allocates release memory Memory allocated from 'Heap' Returns a void Returns NULL on failure Must specify the size required.. release memory Memory allocated from 'Heap' Returns a void Returns NULL on failure Must specify the size required in bytes. Allocating..
return value (not a reference) from the function, bound to a const reference in the calling function; how is its lifetime extended to the scope of the calling function? http://stackoverflow.com/questions/2615162/return-value-not-a-reference-from-the-function-bound-to-a-const-reference-in GetBoundingBox void return BoundingBox GetBoundingSphere Returns a value of type const BoundingBox from function GetBoundingBox..
Range-based for statement definition redundancy http://stackoverflow.com/questions/2648878/range-based-for-statement-definition-redundancy range access template class T size_t N T begin T array N Returns array. template class T size_t N T end T array N Returns array.. N Returns array. template class T size_t N T end T array N Returns array N. c for loop range c 11 argument dependent lookup ..
How do I best handle dynamic multi-dimensional arrays in C/C++? http://stackoverflow.com/questions/365782/how-do-i-best-handle-dynamic-multi-dimensional-arrays-in-c-c to manipulate the created array by managing it's commands. Returns true if the exit command have been called. bool process_command..
How do I call the original “operator new” if I have overloaded it? http://stackoverflow.com/questions/4134195/how-do-i-call-the-original-operator-new-if-i-have-overloaded-it to the Standard C library function malloc is unspecified. Returns a pointer to the allocated storage if the attempt is successful...
send RSA public key to iphone and use it to encrypt http://stackoverflow.com/questions/4211484/send-rsa-public-key-to-iphone-and-use-it-to-encrypt to your project and you #import Security Security.h . Returns an NSData of the encrypted text or nil if encryption was unsuccessful...
error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup http://stackoverflow.com/questions/4845410/error-lnk2019-unresolved-external-symbol-main-referenced-in-function-tmainc sequence is_item const return current_index used used 0 Returns the current value sequence value_type sequence current const..
Is string::c_str() no longer null terminated in C++11? http://stackoverflow.com/questions/7554039/is-stringc-str-no-longer-null-terminated-in-c11 at the definition of operator 21.4.5 Requires pos size . Returns begin pos if pos size otherwise a reference to an object of.. 21.4.7.1 1 we see that it is defined in terms of operator Returns A pointer p such that p i operator i for each i in 0 size ...
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares folks to find n squares in a list of images pic1 6.png n Returns sequence of squares detected on the image. n the sequence is..
How does std::forward work? [duplicate] http://stackoverflow.com/questions/8526598/how-does-stdforward-work forward does according to the standard §20.2.3 forward p2 Returns static_cast T t Where T is the explicitly specified template..
What is the default constructor for C++ pointer? http://stackoverflow.com/questions/936999/what-is-the-default-constructor-for-c-pointer The SGI docs say this data_type operator const key_type k Returns a reference to the object that is associated with a particular..
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