c++ Programming Glossary: allocator_traits
Questions about Hinnant's stack allocator http://stackoverflow.com/questions/11648202/questions-about-hinnants-stack-allocator if you're operating in an environment that supplies allocator_traits . To find out just remove them and see if things still compile... the way to write C 11 conformant allocators Yes. However allocator_traits will do it for you. Let it. The std lib has already debugged.. debugged that code for you. C 11 containers will call allocator_traits YourAllocator construct your_allocator pointer args... . If..
Should (in C++11) std::vector::resize(size_type) work for the default constructible value_type int[4]? http://stackoverflow.com/questions/12192895/should-in-c11-stdvectorresizesize-type-work-for-the-default-constructi i.e. that the following should be well formed 23.2.1 13 allocator_traits A construct m p v where A is the allocator type of the vector.. fails typedef ArrayAllocator int 4 A A m int p 4 0 v 4 std allocator_traits A construct m p v works Another bug is in the standard itself..
C++11 emplace_back on vector<struct>? http://stackoverflow.com/questions/13812703/c11-emplace-back-on-vectorstruct 253 4 required from ˜static typename std enable_if std allocator_traits _Alloc __construct_helper _Tp _Args value void type std allocator_traits.. _Alloc __construct_helper _Tp _Args value void type std allocator_traits _Alloc _S_construct _Alloc _Tp _Args ... with _Tp T _Args int.. char 4 _Alloc std allocator T typename std enable_if std allocator_traits _Alloc __construct_helper _Tp _Args value void type void usr..
Difference between MoveInsertable and CopyInsertable? http://stackoverflow.com/questions/14916005/difference-between-moveinsertable-and-copyinsertable into X means that the following expression is well formed allocator_traits A construct m p v MoveInsertable is defined by the standard.. into X means that the following expression is well formed allocator_traits A construct m p rv Now to understand these definitions we must.. p rv Now to understand these definitions we must know what allocator_traits A construct does. Quite simply in this case it calls m.construct..
How to make my uninitialised_allocator safe? http://stackoverflow.com/questions/15967293/how-to-make-my-uninitialised-allocator-safe to deriving from another allocator. Now you can let allocator_traits handle rebind . Template the construct members on U . This helps..
Avoiding default construction of elements in standard containers http://stackoverflow.com/questions/7218574/avoiding-default-construction-of-elements-in-standard-containers std forward Args args ... namespace std XXX specialize allocator_traits this shouldn't be necessary but clang 2.7 libc has trouble recognizing.. well formed construct function template typename T struct allocator_traits uninitialized_allocator T std allocator_traits std allocator.. T struct allocator_traits uninitialized_allocator T std allocator_traits std allocator T typedef uninitialized_allocator T allocator_type..
Why doesn't emplace_back() use uniform initialization? http://stackoverflow.com/questions/8782895/why-doesnt-emplace-back-use-uniform-initialization 265 4 required from 'static typename std enable_if std allocator_traits _Alloc __construct_helper _Tp _Args value void type std allocator_traits.. _Alloc __construct_helper _Tp _Args value void type std allocator_traits _Alloc _S_construct _Alloc _Tp _Args ... with _Tp S _Args int.. int int _Alloc std allocator S typename std enable_if std allocator_traits _Alloc __construct_helper _Tp _Args value void type void ' c..
|