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c++ Programming Glossary: elidedc++ why initializer_list behavior for std::vector and std::array are different http://stackoverflow.com/questions/11400090/c-why-initializer-list-behavior-for-stdvector-and-stdarray-are-different old style of aggregate initialization extra braces may be elided so this is equivalent to std array int 4 y 1 2 3 4 However these.. int 4 y 1 2 3 4 However these extra braces may only be elided in a declaration of the form T x a C 11 §8.5.1 11 that is when.. initialization. A footnote here reads Braces cannot be elided in other uses of list initialization. There is a defect report..
When can outer braces be omitted in an initializer list? http://stackoverflow.com/questions/11734861/when-can-outer-braces-be-omitted-in-an-initializer-list this case In a declaration of the form T x a braces can be elided in an initializer list as follows . If the initializer list.. the following example braces in the initializer list are elided however the initializer list has the same effect as the completely.. following should be allowed OKAY. Braces are completely elided for the inner aggregate std array A 2 X 0 0.1 2 3.4 OKAY. Completely..
Using std::move() when returning a value from a function to avoid to copy http://stackoverflow.com/questions/11817873/using-stdmove-when-returning-a-value-from-a-function-to-avoid-to-copy T t to make it work T f T t return t most likely elided entirely return std move t uses T T T if defined error if deleted..
When should std::move be used on a function return value? http://stackoverflow.com/questions/14856344/when-should-stdmove-be-used-on-a-function-return-value have a potential effect though it prevents the move being elided because return std move foo is not eligible for NRVO. As far..
What is copy elision and how does it optimize the copy-and-swap idiom? http://stackoverflow.com/questions/2143787/what-is-copy-elision-and-how-does-it-optimize-the-copy-and-swap-idiom to a rvalue temporary object literal the copy is typically elided which saves a call to a copy constructor and a destructor. In..
Is it better in C++ to pass by value or pass by constant reference? http://stackoverflow.com/questions/270408/is-it-better-in-c-to-pass-by-value-or-pass-by-constant-reference when the function is inlined the copy will actually be elided if the compiler can figure out that the original object won..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom article the copying moving of the value may simply be elided altogether. And so concludes the copy and swap idiom. Footnotes..
why copy constructor is called when passing temp by const ref? http://stackoverflow.com/questions/4733448/why-copy-constructor-is-called-when-passing-temp-by-const-ref the reference it also says that the temporary copy can be elided but the semantic constraints eg. accessibility of the copy constructor..
Templates don't always guess initializer list types http://stackoverflow.com/questions/7699963/templates-dont-always-guess-initializer-list-types holding the data will be destroyed too if the move is elided it will live as long as v that's bad since it would not even..
Understanding eliding rules with regard to c++11 http://stackoverflow.com/questions/9267687/understanding-eliding-rules-with-regard-to-c11 want to make sure I understand the when a copy should be elided and when it should follow move semantics. Given the following.. NVCRA ret 5 ... return ret int main This call will be elided allays and invoke the single param constructor NVCRA A GetATemp.. am I guaranteed a copy constructor will or will not be elided. Question 2. Is there a way to force the compiler to not elide...
Is returning with `std::move` sensible in the case of multiple return statements? http://stackoverflow.com/questions/9532608/is-returning-with-stdmove-sensible-in-the-case-of-multiple-return-statements constructor must be accessible even if the call is elided. ”end note Copy elision is very restricted in where it can be..
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