error_category( const error_category& other ) = delete; (1) (since C++11) constexpr error_category(); (2) (since C++14) Constructs the error category object. Parameters (none). Exceptions 2) noexcept specification: noexcept

Defined in header <numeric> template< class InputIt, class T > T accumulate( InputIt first, InputIt last, T init ); (1) template< class InputIt, class T, class BinaryOperation > T accumulate( InputIt first, InputIt last, T init, BinaryOperation op ); (2) Computes the sum of the given value init and the elements in the range [first, last). The first version uses operator+ to sum up the elements, the second version uses the given binary functio

Defined in header <type_traits> template< class T > struct is_null_pointer; (since C++14) Checks whether T is the type std::nullptr_t. Provides the member constant value that is equal to true, if T is the type std::nullptr_t, const std::nullptr_t, volatile std::nullptr_t, or const volatile std::nullptr_t. Otherwise, value is equal to false. Template parameters T - a type to check Helper variable template template< class T > constexpr bool is_nul

Usage alternative operators: as an alternative for |

RealType alpha() const; (1) (since C++11) RealType beta() const; (2) (since C++11) Returns the distribution parameters the distribution has been constructed with. 1) Returns the α distribution parameter. It is also known as the shape parameter. The default value is 1.0. 2) Returns the β distribution parameter. It is also known as the scale parameter. The default value is 1.0. Parameters (none). Return value 1) Floating point value identifying the α parameter 2) Floating

Defined in header <new> class bad_alloc; std::bad_alloc is the type of the object thrown as exceptions by the allocation functions to report failure to allocate storage. Inheritance diagram. Member functions (constructor) constructs the bad_alloc object (public member function) operator= replaces a bad_alloc object (public member function) what returns explanatory string (public member function) std::bad_alloc::bad_alloc bad_alloc(); Con

Defined in header <type_traits> template< class T > struct is_default_constructible; (1) (since C++11) template< class T > struct is_trivially_default_constructible; (2) (since C++11) template< class T > struct is_nothrow_default_constructible; (3) (since C++11) 1) If std::is_constructible<T>::value is true, provides the member constant value equal to true, otherwise value is false. 2) If std::is_trivially_constructible<T>::value is

reference front(); (since {std}) const_reference front() const; (since {std}) Returns a reference to the first element in the container. Calling front on an empty container is undefined. Parameters (none). Return value reference to the first element. Complexity Constant. Notes For a container c, the expression c.front() is equivalent to *c.begin(). Example The following code uses front to display the first element of a std::dynarray<char>: #include <dynarr

Defined in header <locale> template< class CharT > class ctype; Class ctype encapsulates character classification features. All stream input operations performed through std::basic_istream<charT> use the std::ctype<charT> of the locale imbued in the stream to identify whitespace characters for input tokenization. Stream output operations apply std::ctype<charT>::widen() to narrow-character arguments prior to output. Inheritance diagram. Two sta

constexpr piecewise_construct_t piecewise_construct = std::piecewise_construct_t(); (since C++11) The constant std::piecewise_construct is an instance of an empty struct tag type std::piecewise_construct_t. Example #include <iostream> #include <utility> #include <tuple> struct Foo { Foo(std::tuple<int, float>) { std::cout << "Constructed a Foo from a tuple\n"; } Foo(int, float) { std::cout << "Constructed a