The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::enable_if – std::enable_if Synopsis Defined in header<type_traits> template <bool B, class T = void> (since C++ 11) struct enable_if; If B is true, std::enable_if has a public member typedef type, equal to T; otherwise, there is no member typedef. This metafunction is a convenient way to leverage SFINAE to conditionally remove functions from overload_resolution based…
std::empty – std::empty Synopsis Defined in header<iterator> template <class C> (since C++ 17) constexpr auto empty(const C &c) -> decltype(c.empty()); (until C++ 20) template <class C> (since C++ 20) [[nodiscard]] constexpr auto empty(const C &c) -> decltype(c.empty()); template <class T, std::size_t N> (since C++ 17) constexpr bool empty(const T (&array)[N]) noexcept; (1)(until C++ 20) template…
std::emit_on_flush,std::no_emit_on_flush – std::emit_on_flush,std::no_emit_on_flush Synopsis Defined in header <ostream> template< class CharT, class Traits > (1) (since C++20) std::basic_ostream<CharT, Traits>& emit_on_flush( std::basic_ostream<CharT, Traits>& os ); template< class CharT, class Traits > (2) (since C++20) std::basic_ostream<CharT, Traits>& no_emit_on_flush( std::basic_ostream<CharT, Traits>& os ); If os.rdbuf() actually points to a std::basic_syncbuf<CharT, Traits, Allocator> buf, toggles whether it emits (i.e.,…
std::ellint_3,std::ellint_3f,std::ellint_3l – std::ellint_3,std::ellint_3f,std::ellint_3l Synopsis double ellint_3( double k, double ν, double φ ); float ellint_3f( float k, float ν, float φ ); (1) (since C++17) long double ellint_3l( long double k, long double ν, long double φ ); Promoted ellint_3( Arithmetic k, Arithmetic ν, Arithmetic φ ); (2) (since C++17) 1) Computes the incomplete_elliptic_integral_of_the_third_kind of…
std::ellint_2,std::ellint_2f,std::ellint_2l – std::ellint_2,std::ellint_2f,std::ellint_2l Synopsis double ellint_2( double k, double φ ); float ellint_2f( float k, float φ ); (1) (since C++17) long double ellint_2l( long double k, long double φ ); Promoted ellint_2( Arithmetic k, Arithmetic φ ); (2) (since C++17) 1) Computes the incomplete_elliptic_integral_of_the_second_kind of k and φ. 2) A set of overloads or…
std::ellint_1,std::ellint_1f,std::ellint_1l – std::ellint_1,std::ellint_1f,std::ellint_1l Synopsis double ellint_1( double k, double φ ); float ellint_1f( float k, float φ ); (1) (since C++17) long double ellint_1l( long double k, long double φ ); Promoted ellint_1( Arithmetic k, Arithmetic φ ); (2) (since C++17) 1) Computes the incomplete_elliptic_integral_of_the_first_kind of k and φ. 2) A set of overloads or…
std::dynamic_extent – std::dynamic_extent Synopsis Defined in header <span> inline constexpr std::size_t dynamic_extent = std::numeric_limits<std::size_t>::max(); (since C++20) std::dynamic_extent is a constant of type std::size_t that is used to differentiate std::span of static and dynamic extent. Note Since std::size_t is an unsigned type, an equivalent definition is: inline constexpr std::size_t dynamic_extent = -1; See integral_conversions. See also…
std::domain_error – std::domain_error Synopsis Defined in header <stdexcept> class domain_error; Defines a type of object to be thrown as exception. It may be used by the implementation to report domain errors, that is, situations where the inputs are outside of the domain on which an operation is defined. The standard library components do not throw…
std::divides<void> – std::divides<void> Synopsis Defined in header<functional> template <> (since C++ 14) class divides<void>; std::divides<> is a specialization of std::divides with parameter and return type deduced. Member types Member type Definition is_transparent /* unspecified */ Member functions returns the quotient of two arguments operator() (public member function) std::divides<>::operator() template< class T, class U> constexpr auto…
std::div,std::ldiv,std::lldiv – std::div,std::ldiv,std::lldiv Synopsis Defined in header <cstdlib> std::div_t div( int x, int y ); (1) std::ldiv_t div( long x, long y ); (2) std::lldiv_t div( long long x, long long y ); (3) (since C++11) std::ldiv_t ldiv( long x, long y ); (4) std::lldiv_t lldiv( long long x, long long y ); (5) (since…
std::distance – std::distance Synopsis Defined in header <iterator> template< class InputIt > typename std::iterator_traits<InputIt>::difference_type (until C++17) distance( InputIt first, InputIt last ); template< class InputIt > constexpr typename std::iterator_traits<InputIt>::difference_type (since C++17) distance( InputIt first, InputIt last ); Returns the number of hops from first to last. The behavior is undefined if last is not reachable…
std::disjunction – std::disjunction Synopsis Defined in header<type_traits> template <class… B> (1)(since C++ 17) struct disjunction; Forms the logical_disjunction of the type traits B…, effectively performing a logical OR on the sequence of traits. The specialization std::disjunction<B1, …, BN> has a public and unambiguous base that is * if sizeof…(B) == 0, std::false_type; otherwise * the…
std::discrete_distribution< _IntType >::param_type – Synopsis Public Types typedef discrete_distribution < _IntType > distribution_type" Public Member Functions template<typename _InputIterator > param_type (_InputIterator __wbegin, _InputIterator __wend) param_type (initializer_list< double > __wil) template<typename _Func > param_type (size_t __nw, double __xmin, double __xmax, _Func __fw) param_type (const param_type &)=default param_type & operator= (const param_type &)=default std::vector< double > probabilities…
std::discrete_distribution<IntType>::reset – std::discrete_distribution<IntType>::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::discrete_distribution<IntType>::probabilities – std::discrete_distribution<IntType>::probabilities Synopsis std::vector<double> probabilities() const; (since C++11) Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution. Parameters (none) Return value An object of type std::vector<double> Example // Run this code #include <iostream> #include <vector> #include <random> int main() { std::discrete_distribution<> d({40, 10, 10, 40}); std::vector<double> p…
std::discrete_distribution<IntType>::param – std::discrete_distribution<IntType>::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::discrete_distribution<IntType>::operator() – std::discrete_distribution<IntType>::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::discrete_distribution<IntType>::min – std::discrete_distribution<IntType>::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::discrete_distribution<IntType>::max – std::discrete_distribution<IntType>::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)
std::discrete_distribution<IntType>::discrete_distribution – std::discrete_distribution<IntType>::discrete_distribution Synopsis discrete_distribution(); (1) (since C++11) template< class InputIt > (2) (since C++11) discrete_distribution( InputIt first, InputIt last ); discrete_distribution( std::initializer_list<double> weights ); (3) (since C++11) template< class UnaryOperation > discrete_distribution( std::size_t count, double xmin, double xmax, (4) (since C++11) UnaryOperation unary_op ); explicit discrete_distribution( const param_type& params ); (5) (since C++11) Constructs…