2187. vector<bool> is missing emplace and emplace_back member functions

Section: 23.3.12 [vector.bool] Status: C++14 Submitter: Nevin Liber Opened: 2012-09-21 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

It should have them so that it more closely matches the vector<T> interface, as this helps when writing generic code.

[2012, Portland: Move to Tentatively Ready]

Question on whether the variadic template is really needed, but it turns out to be needed to support emplace of no arguments.

[2013-04-20 Bristol]

Proposed resolution:

This wording is relative to N3376.

1. Change the class template vector<bool> synopsis, 23.3.12 [vector.bool] p1, as indicated:

   namespace std {
     template <class Allocator> class vector<bool, Allocator> {
     public:
       […]
       // modifiers:
       template <class... Args> void emplace_back(Args&&... args);
       void push_back(const bool& x);
       void pop_back();
       template <class... Args> iterator emplace(const_iterator position, Args&&... args);
       iterator insert(const_iterator position, const bool& x);
       […]
     };
   }