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::lgamma,std::lgammaf,std::lgammal – std::lgamma,std::lgammaf,std::lgammal Synopsis Defined in header <cmath> float lgamma ( float arg ); (1) (since C++11) float lgammaf( float arg ); double lgamma ( double arg ); (2) (since C++11) long double lgamma ( long double arg ); (3) (since C++11) long double lgammal( long double arg ); double lgamma ( IntegralType arg );…
std::lexicographical_compare_3way – std::lexicographical_compare_3way Synopsis Defined in header <algorithm> template< class InputIt1, class InputIt2, class Cmp > constexpr auto lexicographical_compare_3way( InputIt1 first1, InputIt1 last1, InputIt2 first2, InputIt2 last2, (1) (since C++20) Cmp comp) -> std::common_comparison_category_t<decltype(comp(*first1, *first2)), std::strong_ordering>; template< class InputIt1, class InputIt2 > constexpr auto lexicographical_compare_3way( InputIt1 first1, InputIt1 last1, (2) (since C++20) InputIt2 first2, InputIt2…
std::lexicographical_compare – std::lexicographical_compare Synopsis Defined in header <algorithm> template< class InputIt1, class InputIt2 > bool lexicographical_compare( InputIt1 first1, InputIt1 last1, (until C++20) InputIt2 first2, InputIt2 last2 ); template< class InputIt1, class InputIt2 > constexpr bool lexicographical_compare( InputIt1 first1, InputIt1 last1, (since C++20) InputIt2 first2, InputIt2 last2 ); template< class ExecutionPolicy, class ForwardIt1, class ForwardIt2 >…
std::less_equal<void> – std::less_equal<void> Synopsis Defined in header<functional> template <> (since C++ 14) class less_equal<void>; std::less_equal<> is a specialization of std::less_equal with parameter and return type deduced. Member types Member type Definition is_transparent /* unspecified */ Member functions tests if the lhs compares less or equal than rhs operator() (public member function) std::less_equal<>::operator() template< class T,…
std::less<void> – std::less<void> Synopsis Defined in header<functional> template <> (since C++ 14) class less<void>; std::less<> is a specialization of std::less with parameter and return type deduced. Member types Member type Definition is_transparent /* unspecified */ Member functions tests if the lhs compares less than rhs operator() (public member function) std::less<>::operator() template< class T, class U>…
std::lerp – std::lerp Synopsis Defined in header <cmath> constexpr float lerp( float a, float b, float t ); (1) (since C++20) constexpr double lerp( double a, double b, double t ); (2) (since C++20) constexpr long double lerp( long double a, long double b, long double t ); (3) (since C++20) constexpr Promoted lerp( Arithmetic1…
std::length_error – std::length_error Synopsis Defined in header <stdexcept> class length_error; Defines a type of object to be thrown as exception. It reports errors that result from attempts to exceed implementation defined length limits for some object. This exception is thrown by member functions of std::basic_string and std::vector::reserve std-length error-inheritance.svg Inheritance diagram Member functions constructs the…
std::legendre,std::legendref,std::legendrel – std::legendre,std::legendref,std::legendrel Synopsis double legendre(unsigned int n, double x); float legendre(unsigned int n, float x); long double legendre(unsigned int n, long double x); (1)(since C++ 17) float legendref(unsigned int n, float x); long double legendrel(unsigned int n, long double x); double legendre(unsigned int n, IntegralType x); (2)(since C++ 17) 1) Computes the unassociated Legendre_polynomials…
std::left,std::right,std::internal – std::left,std::right,std::internal Synopsis Defined in header <ios> std::ios_base& left( std::ios_base& str ); (1) std::ios_base& right( std::ios_base& str ); (2) std::ios_base& internal( std::ios_base& str ); (3) Modifies the default positioning of the fill characters. left and right apply to any output, internal applies to integer, floating-point, and monetary output. Has no effect on input. 1)…
std::ldexp,std::ldexpf,std::ldexpl – std::ldexp,std::ldexpf,std::ldexpl Synopsis Defined in header <cmath> float ldexp ( float x, int exp ); float ldexpf( float x, int exp ); (since C++11) double ldexp ( double x, int exp ); (1) (2) long double ldexp ( long double x, int exp ); long double ldexpl( long double x, int exp ); (3)…
std::lconv – std::lconv Synopsis Defined in header<clocale> struct lconv; The class std::lconv contains numeric and monetary formatting rules as defined by a C locale. Objects of this struct may be obtained with std::localeconv. The members of std::lconv are values of type char and of type char*. Each char* member except decimal_point may be pointing at…
std::lcm – std::lcm Synopsis Defined in header <numeric> template< class M, class N> (since C++17) constexpr std::common_type_t<M, N> lcm(M m, N n); Computes the least common multiple of the integers m and n. Parameters m, n – integer values Return value If either m or n is zero, returns zero. Otherwise, returns the least common…
std::launder – std::launder Synopsis Defined in header <new> template <class T> (since C++17) constexpr T* launder(T* p) noexcept; (until C++20) template <class T> (since C++20) [[nodiscard]] constexpr T* launder(T* p) noexcept; Obtains a pointer to the object located at the address represented by p. Formally, given * the pointer p represents the address A of…
std::launch – std::launch Synopsis Defined in header <future> enum class launch : /* unspecified */ { async = /* unspecified */, deferred = /* unspecified */, (since C++11) /* implementation-defined */ }; Specifies the launch policy for a task executed by the std::async function. std::launch is an enumeration used as BitmaskType. The following constants denoting…
std::laguerre,std::laguerref,std::laguerrel – std::laguerre,std::laguerref,std::laguerrel Synopsis double laguerre(unsigned int n, double x); float laguerre(unsigned int n, float x); long double laguerre(unsigned int n, long double x); (1)(since C++ 17) float laguerref(unsigned int n, float x); long double laguerrel(unsigned int n, long double x); double laguerre(unsigned int n, IntegralType x); (2)(since C++ 17) 1) Computes the non-associated Laguerre_polynomials…
std::kill_dependency – std::kill_dependency Synopsis Defined in header <atomic> template< class T > (since C++11) T kill_dependency( T y ) noexcept; Informs the compiler that the dependency tree started by an std::memory_order_consume atomic load operation does not extend past the return value of std::kill_dependency; that is, the argument does not carry a dependency into the return…
std::jmp_buf – std::jmp_buf Synopsis Defined in header <csetjmp> typedef /* unspecified */ jmp_buf; The std::jmp_buf type is an array type suitable for storing information to restore a calling environment. The stored information is sufficient to restore execution at the correct block of the program and invocation of that block. The state of floating-point status flags,…
std::iterator_traits – std::iterator_traits Synopsis Defined in header<iterator> template <class Iter> struct iterator_traits; template <class T> struct iterator_traits<T *>; template <class T> (until C++ 20) struct iterator_traits<const T *>; std::iterator_traits is the type trait class that provides uniform interface to the properties of LegacyIterator types. This makes it possible to implement algorithms only in terms of…
std::iterator – std::iterator Synopsis Defined in header<iterator> template < class Category, class T, class Distance = std::ptrdiff_t, (deprecated in C++ 17) class Pointer = T *, class Reference = T & > struct iterator; std::iterator is the base class provided to simplify definitions of the required types for iterators. Template parameters Category – the category…
std::iter_value_t,std::iter_reference_t,std::iter_difference_t,std::iter_rvalue_reference_t,std::iter_common_reference_t – std::iter_value_t,std::iter_reference_t,std::iter_difference_t,std::iter_rvalue_reference_t,std::iter_common_reference_t Synopsis Defined in header <iterator> template< class T > concept /*dereferenceable*/ = /* see below */; // exposition only template< class T > (1) (since C++20) using iter_value_t = /* see below */; template< /*dereferenceable*/ T > (2) (since C++20) using iter_reference_t = decltype(*std::declval<T&>()); template< class T > (3) (since C++20) using…