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::strcmp – std::strcmp Synopsis Defined in header<cstring> int strcmp(const char *lhs, const char *rhs); Compares two null-terminated byte strings lexicographically. The sign of the result is the sign of the difference between the values of the first pair of characters (both interpreted as unsigned char) that differ in the strings being compared. The behavior is…
std::strchr – std::strchr Synopsis Defined in header<cstring> const char *strchr(const char *str, int ch); char *strchr(char *str, int ch); Finds the first occurrence of the character static_cast<char>(ch) in the byte string pointed to by str. The terminating null character is considered to be a part of the string and can be found if searching for…
std::strcat – std::strcat Synopsis Defined in header<cstring> char *strcat(char *dest, const char *src); Appends a copy of the character string pointed to by src to the end of the character string pointed to by dest. The character src[0] replaces the null terminator at the end of dest. The resulting byte string is null-terminated. The behavior…
std::stoul,std::stoull – std::stoul,std::stoull Synopsis Defined in header<string> unsigned long stoul(const std::string &str, std::size_t *pos = 0, int base = 10); (1)(since C++ 11) unsigned long stoul(const std::wstring &str, std::size_t *pos = 0, int base = 10); unsigned long long stoull(const std::string &str, std::size_t *pos = 0, int base = 10); (2)(since C++ 11) unsigned long…
std::stoi,std::stol,std::stoll – std::stoi,std::stol,std::stoll Synopsis Defined in header<string> int stoi(const std::string &str, std::size_t *pos = 0, int base = 10); (1)(since C++ 11) int stoi(const std::wstring &str, std::size_t *pos = 0, int base = 10); long stol(const std::string &str, std::size_t *pos = 0, int base = 10); (2)(since C++ 11) long stol(const std::wstring &str, std::size_t *pos…
std::stof,std::stod,std::stold – std::stof,std::stod,std::stold Synopsis Defined in header<string> float stof(const std::string &str, std::size_t *pos = 0); (1)(since C++ 11) float stof(const std::wstring &str, std::size_t *pos = 0); double stod(const std::string &str, std::size_t *pos = 0); (2)(since C++ 11) double stod(const std::wstring &str, std::size_t *pos = 0); long double stold(const std::string &str, std::size_t *pos = 0); (3)(since…
std::static_pointer_cast,std::dynamic_pointer_cast,std::const_pointer_cast,std::reinterpret_pointer_cast – std::static_pointer_cast,std::dynamic_pointer_cast,std::const_pointer_cast,std::reinterpret_pointer_cast Synopsis Defined in header<memory> template <class T, class U> (1)(since C++ 11) std::shared_ptr<T> static_pointer_cast(const std::shared_ptr<U> &r) noexcept; template <class T, class U> (2)(since C++ 20) std::shared_ptr<T> static_pointer_cast(std::shared_ptr<U> &&r) noexcept; template <class T, class U> (3)(since C++ 11) std::shared_ptr<T> dynamic_pointer_cast(const std::shared_ptr<U> &r) noexcept; template <class T, class U> (4)(since C++ 20) std::shared_ptr<T> dynamic_pointer_cast(std::shared_ptr<U>…
std::static_pointer_cast,std::dynamic_pointer_cast,std::const_pointer_cast, – std::static_pointer_cast,std::dynamic_pointer_cast,std::const_pointer_cast, Synopsis Defined in header<memory> template <class T, class U> std::shared_ptr<T> static_pointer_cast(const std::shared_ptr<U> &(1)(since C++ 11) r) noexcept; template <class T, class U> std::shared_ptr<T> static_pointer_cast(std::shared_ptr<U> &&r)(2)(since C++ 20) noexcept; template <class T, class U> std::shared_ptr<T> dynamic_pointer_cast(const std::shared_ptr<U> &(3)(since C++ 11) r) noexcept; template <class T, class U> std::shared_ptr<T> dynamic_pointer_cast(std::shared_ptr<U> &&r)(4)(since C++ 20) noexcept;…
std::stack<T,Container>::~stack – std::stack<T,Container>::~stack Synopsis ~stack(); Destructs the container adaptor. The destructors of the elements are called and the used storage is deallocated. Note, that if the elements are pointers, the pointed-to objects are not destroyed. Complexity Linear in the size of the container adaptor.
std::stable_sort – std::stable_sort Synopsis Defined in header<algorithm> template <class RandomIt> (1) void stable_sort(RandomIt first, RandomIt last); template <class ExecutionPolicy, class RandomIt> (2)(since C++ 17) void stable_sort(ExecutionPolicy &&policy, RandomIt first, RandomIt last); template <class RandomIt, class Compare> (3) void stable_sort(RandomIt first, RandomIt last, Compare comp); template <class ExecutionPolicy, class RandomIt, class Compare> (4)(since C++ 17) void…
std::stable_partition – std::stable_partition Synopsis Defined in header <algorithm> template< class BidirIt, class UnaryPredicate > (1) BidirIt stable_partition( BidirIt first, BidirIt last, UnaryPredicate p ); template< class ExecutionPolicy, class BidirIt, class UnaryPredicate > (2) (since C++17) BidirIt stable_partition( ExecutionPolicy&& policy, BidirIt first, BidirIt last, UnaryPredicate p ); 1) Reorders the elements in the range [first, last)…
std::srand – std::srand Synopsis Defined in header<cstdlib> void srand(unsigned seed); Seeds the pseudo-random number generator used by std::rand() with the value seed. If rand() is used before any calls to srand(), rand() behaves as if it was seeded with srand(1). Each time rand() is seeded with the same seed, it must produce the same sequence…
std::sqrt,std::sqrtf,std::sqrtl – std::sqrt,std::sqrtf,std::sqrtl Synopsis Defined in header <cmath> float sqrt ( float arg ); float sqrtf( float arg ); (since C++11) double sqrt ( double arg ); (1) (2) long double sqrt ( long double arg ); long double sqrtl( long double arg ); (3) (since C++11) double sqrt ( IntegralType arg ); (4) (since…
std::sqrt(std::valarray) – std::sqrt(std::valarray) Synopsis Defined in header<valarray> template <class T> valarray<T> sqrt(const valarray<T> &va); For each element in va computes the square root of the value of the element. Parameters va – value array to apply the operation to Return value Value array containing square roots of the values in va. Notes Unqualified function (sqrt)…
std::sqrt(std::complex) – std::sqrt(std::complex) Synopsis Defined in header<complex> template <class T> complex<T> sqrt(const complex<T> &z); Computes the square root of the complex number z with a branch cut along the negative real axis. Parameters z – complex number to take the square root of Return value If no errors occur, returns the square root of z,…
std::sph_neumann,std::sph_neumannf,std::sph_neumannl – std::sph_neumann,std::sph_neumannf,std::sph_neumannl Synopsis double sph_neumann ( unsigned n, double x ); float sph_neumann ( unsigned n, float x ); long double sph_neumann ( unsigned n, long double x ); (1) (since C++17) float sph_neumannf( unsigned n, float x ); long double sph_neumannl( unsigned n, long double x ); double sph_neumann( unsigned n, IntegralType x…
std::sph_legendre,std::sph_legendref,std::sph_legendrel – std::sph_legendre,std::sph_legendref,std::sph_legendrel Synopsis double sph_legendre ( unsigned l, unsigned m, double θ ); float sph_legendre ( unsigned l, unsigned m, float θ ); long double sph_legendre ( unsigned l, unsigned m, long double θ );(1) (since C++17) float sph_legendref( unsigned l, unsigned m, float θ ); long double sph_legendrel( unsigned l, unsigned m, long…
std::sph_bessel,std::sph_besself,std::sph_bessell – std::sph_bessel,std::sph_besself,std::sph_bessell Synopsis double sph_bessel ( unsigned n, double x ); float sph_bessel ( unsigned n, float x ); long double sph_bessel ( unsigned n, long double x ); (1) (since C++17) float sph_besself( unsigned n, float x ); long double sph_bessell( unsigned n, long double x ); double sph_bessel( unsigned n, IntegralType x…
std::span<T,Extent>::subspan – std::span<T,Extent>::subspan Synopsis template <std::size_t Offset, std::size_t Count = std::dynamic_extent> (1) constexpr std::span<element_type, E /* see below */> subspan() const; constexpr std::span<element_type, std::dynamic_extent> subspan(std::size_t Offset, (2) std::size_t Count = std::dynamic_extent) const; Obtains a span that is a view over the Count elements of this span starting at offset Offset. If Count is std::dynamic_extent, the…
std::sort_heap – std::sort_heap Synopsis Defined in header<algorithm> template <class RandomIt> (until C++ 20) void sort_heap(RandomIt first, RandomIt last); template <class RandomIt> (since C++ 20) constexpr void sort_heap(RandomIt first, RandomIt last); (1) template <class RandomIt, class Compare> (until C++ 20) void sort_heap(RandomIt first, RandomIt last, Compare comp); (2) template <class RandomIt, class Compare> (since C++ 20)…