The following code uses front to access the first element of a std::vector<char>:

The following code uses front to access the first element of a std::array<char, 4>:

Defect reports The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

1) std::vector is a sequence container that encapsulates dynamic size arrays.

Return value A reference to the first element. Complexity Constant. Notes For a span c, the expression c.front() is equivalent to …

C++ reference C++

The default implementation of front() member function returns the first element in the view of the derived type. Whether the element …

What links here Related changes Upload file Special pages Printable version Permanent link Page information

Notes For a container c, the expression c.front() is equivalent to *c.begin().

namespace std { template<class Allocator> class vector<bool, Allocator> { public: // types using value_type = bool; using …