std::num_get<CharT,InputIt>::~num_get – std::num_get<CharT,InputIt>::~num_get Synopsis Defined in header <locale> protected: ~num_get(); Destructs a std::num_get facet. This destructor is protected and virtual (due to base_class destructor being virtual). An object of type std::num_get, like most facets, can only be destroyed when the last std::locale object that implements this facet goes out of scope or if a user-defined…
std::nullptr_t – std::nullptr_t Synopsis Defined in header <cstddef> typedef decltype(nullptr) nullptr_t; (since C++11) std::nullptr_t is the type of the null pointer literal, nullptr. It is a distinct type that is not itself a pointer type or a pointer to member type. Example If two or more overloads accept different pointer types, an overload for std::nullptr_t…
std::nullopt_t – std::nullopt_t Synopsis Defined in header <optional> struct nullopt_t; (since C++17) std::nullopt_t is an empty class type used to indicate optional type with uninitialized state. In particular, std::optional has a constructor with nullopt_t as a single argument, which creates an optional that does not contain a value. std::nullopt_t must be a non-aggregate LiteralType and…
std::nullopt – std::nullopt Synopsis Defined in header <optional> inline constexpr nullopt_t nullopt{/*unspecified*/}; (since C++17) std::nullopt is a constant of type std::nullopt_t that is used to indicate optional type with uninitialized state. See also nullopt_t indicator of optional type with uninitialized state (class) (C++17)
std::nth_element – std::nth_element Synopsis Defined in header<algorithm> template <class RandomIt> (until C++ 20) void nth_element(RandomIt first, RandomIt nth, RandomIt last); template <class RandomIt> (since C++ 20) constexpr void nth_element(RandomIt first, RandomIt nth, RandomIt last); template <class ExecutionPolicy, class RandomIt> void nth_element(ExecutionPolicy &&policy, (2)(since C++ 17) RandomIt first, RandomIt nth, RandomIt last); template <class RandomIt, class…
std::notify_all_at_thread_exit – std::notify_all_at_thread_exit Synopsis Defined in header<condition_variable> void notify_all_at_thread_exit(std::condition_variable &cond, (since C++ 11) std::unique_lock<std::mutex> lk); notify_all_at_thread_exit provides a mechanism to notify other threads that a given thread has completely finished, including destroying all thread_local objects. It operates as follows: * Ownership of the previously acquired lock lk is transferred to internal storage. * The execution…
std::nothrow_t – std::nothrow_t Synopsis Defined in header<new> struct nothrow_t { }; (until C++ 17) struct nothrow_t { explicit nothrow_t() = default; }; (since C++ 17) std::nothrow_t is an empty class type used to disambiguate the overloads of throwing and non-throwing allocation_functions. See also an object of type nothrow_t used to select an non-throwing allocation function…
std::nothrow – std::nothrow Synopsis Defined in header<new> extern const std::nothrow_t nothrow; std::nothrow is a constant of type std::nothrow_t used to disambiguate the overloads of throwing and non-throwing allocation_functions. Example // Run this code #include <iostream> #include <new> int main() { try { while (true) { new int[100000000ul]; // throwing overload } } catch (const std::bad_alloc…
std::not_fn – std::not_fn Synopsis Defined in header <functional> template< class F> (since C++17) /*unspecified*/ not_fn( F&& f ); Creates a forwarding call wrapper that returns the negation of the callable object it holds. Parameters f – the object from which the Callable object held by the wrapper is constructed Type requirements – std::decay_t<F> must meet…
std::not_equal_to<void> – std::not_equal_to<void> Synopsis Defined in header<functional> template <> (since C++ 14) class not_equal_to<void>; std::not_equal_to<> is a specialization of std::not_equal_to with parameter and return type deduced. Member types Member type Definition is_transparent /* unspecified */ Member functions tests if the two arguments do not compare equal operator() (public member function) std::not_equal_to<>::operator() template< class T, class…
std::not2 – std::not2 Synopsis Defined in header <functional> template< class Predicate > (until C++14) std::binary_negate<Predicate> not2(const Predicate& pred); template< class Predicate > (since C++14) constexpr std::binary_negate<Predicate> not2(const Predicate& pred); (deprecated in C++17) (removed in C++20) not2 is a helper function to create a function object that returns the complement of the binary predicate function passed….
std::not1 – std::not1 Synopsis Defined in header <functional> template< class Predicate > (until C++14) std::unary_negate<Predicate> not1(const Predicate& pred); template< class Predicate > (since C++14) constexpr std::unary_negate<Predicate> not1(const Predicate& pred); (deprecated in C++17) (removed in C++20) not1 is a helper function to create a function object that returns the complement of the unary predicate function passed….
std::normal_distribution< _RealType >::param_type – Synopsis Public Types typedef normal_distribution < _RealType > distribution_type" Public Member Functions param_type (_RealType __mean=_RealType(0), _RealType __stddev=_RealType(1)) _RealType mean () const _RealType stddev () const Friends bool operator== (const param_type &__p1, const param_type &__p2) Detailed Description template<typename _RealType = double>struct std::normal_distribution< _RealType >::param_type Parameter type. Definition at line 2094 of file…
std::normal_distribution<RealType>::reset – std::normal_distribution<RealType>::reset Synopsis void reset(); (since C++ 11) Resets the internal state of the distribution object. After a call to this function, the next call to operator() on the distribution object will not be dependent on previous calls to operator(). Parameters (none) Return value (none) Complexity Constant.
std::normal_distribution<RealType>::param – std::normal_distribution<RealType>::param Synopsis param_type param() const; (1) (since C++11) void param( const param_type& params ); (2) (since C++11) Manages the associated distribution parameter set. 1) Returns the associated parameter set. 2) Sets the associated parameter set to params Parameters params – new contents of the associated parameter set Return value 1) The associated parameter…
std::normal_distribution<RealType>::operator() – std::normal_distribution<RealType>::operator() Synopsis template <class Generator> (1)(since C++ 11) result_type operator()(Generator &g); template <class Generator> (2)(since C++ 11) result_type operator()(Generator &g, const param_type ¶ms); Generates random numbers that are distributed according to the associated probability function. The entropy is acquired by calling g.operator(). The first version uses the associated parameter set, the second version…
std::normal_distribution<RealType>::normal_distribution – std::normal_distribution<RealType>::normal_distribution Synopsis normal_distribution() : normal_distribution(0.0){}(1)(since C++ 11) explicit normal_distribution(RealType mean, RealType stddev = 1.0); (2)(since C++ 11) explicit normal_distribution(const param_type ¶ms); (3)(since C++ 11) Constructs a new distribution object. (2) uses mean and stddev as the distribution parameters. (3) uses params as the distribution parameters. Parameters mean – the μ distribution parameter (mean)…
std::normal_distribution<RealType>::min – std::normal_distribution<RealType>::min Synopsis result_type min() const; (since C++11) Returns the minimum value potentially generated by the distribution. Parameters (none) Return value The minimum value potentially generated by the distribution Complexity Constant. See also returns the maximum potentially generated value max (public member function)
std::normal_distribution<RealType>::mean,stddev – std::normal_distribution<RealType>::mean,stddev Synopsis RealType mean() const; (1) (since C++11) RealType stddev() const; (2) (since C++11) Returns the parameters the distribution was constructed with. 1) Returns the mean μ distribution parameter. The mean specifies the location of the peak. The default value is 0.0. 2) Returns the deviation σ distribution parameter. The default value is…
std::normal_distribution<RealType>::max – std::normal_distribution<RealType>::max Synopsis result_type max() const; (since C++11) Returns the maximum value potentially generated by the distribution. Parameters (none) Return value The maximum value potentially generated by the distribution. Complexity Constant. See also returns the minimum potentially generated value min (public member function)