Linux Manuals session 3

std::cyl_bessel_i,std::cyl_bessel_if,std::cyl_bessel_il – std::cyl_bessel_i,std::cyl_bessel_if,std::cyl_bessel_il Synopsis double cyl_bessel_i( double ν, double x ); float cyl_bessel_if( float ν, float x ); (1) (since C++17) long double cyl_bessel_il( long double ν, long double x ); Promoted cyl_bessel_i( Arithmetic ν, Arithmetic x ); (2) (since C++17) 1) Computes the regular_modified_cylindrical_Bessel_function of ν and x. 2) A set of overloads or…

std::cv_status – std::cv_status Synopsis Defined in header <condition_variable> enum class cv_status { no_timeout, (since C++11) timeout }; The scoped enumeration std::cv_status describes whether a timed wait returned because of timeout or not. std::cv_status is used by the wait_for and wait_until methods of std::condition_variable and std::condition_variable_any. Member constants Constant Explanation no_timeout the condition variable was awakened…

std::current_exception – std::current_exception Synopsis Defined in header <exception> std::exception_ptr current_exception() noexcept; (since C++11) If called during exception handling (typically, in a catch clause), captures the current exception object and creates an std::exception_ptr that holds either a copy or a reference to that exception object (depending on the implementation). The referenced object remains valid at least…

std::ctype_byname<char> – std::ctype_byname<char> Synopsis Defined in header<locale> template <> class ctype_byname : public std::ctype<char>; This specialization of std::ctype_byname encapsulates character classification features for type char. Like its base class std::ctype<char> and unlike general-purpose std::ctype_byname, table lookup is used to classify characters Member types Member type Definition mask ctype<char>::mask Member functions               constructs a new ctype_byname<char> facet…

std::ctype_base – std::ctype_base Synopsis Defined in header <locale> class ctype_base; The class std::ctype_base lists the character classification categories which are inherited by the std::ctype facets. Member types      unspecified BitmaskType (enumeration, integer type, or bitset) mask (typedef) Member constants space the value of mask identifying whitespace character classification                  (public static member constant) [static] print the value…

std::ctype<char>::table – std::ctype<char>::table Synopsis Defined in header <locale> const mask* table() const throw(); (until C++11) const mask* table() const noexcept; (since C++11) Returns the classification table that was provided in the constructor of this instance of std::ctype<char>, or returns a copy of classic_table() if none was provided. Parameters (none) Return value A pointer to the…

std::ctype<char>::scan_not – std::ctype<char>::scan_not Synopsis Defined in header <locale> const char* scan_not (mask m, const char* beg, const char* end) const; (1) Locates the first character in the character array [beg, end) that does not satisfy the classification mask m, that is, the first character c such that table()[(unsigned char)c] & m would return false. If…

std::ctype<char>::scan_is – std::ctype<char>::scan_is Synopsis Defined in header <locale> const char* scan_is (mask m, const char* beg, const char* end) const; (1) Locates the first character in the character array [beg, end) that satisfies the classification mask m, that is, the first character c such that table()[(unsigned char) c] & m would return true. If (unsigned…

std::ctype<char>::is – std::ctype<char>::is Synopsis Defined in header <locale> bool is(mask m, char c) const; (1) const char* is(const char* low, const char* high, mask* vec) const; (2) 1) Checks if the character c is classified by the mask m according to the classification table returned by the member function table(). Effectively calculates table()[(unsigned char)c] &…

std::ctype<char>::classic_table – std::ctype<char>::classic_table Synopsis Defined in header <locale> static const mask* classic_table() throw(); (until C++11) static const mask* classic_table() noexcept; (since C++11) Returns the classification table that matches the classification used by the minimal "C" locale. Parameters (none) Return value A pointer to the first element in the classification table (which an array of size…

std::ctype<CharT>::widen,do_widen – std::ctype<CharT>::widen,do_widen Synopsis Defined in header<locale> public : (1) CharT widen(char c) const; public: (2) const char *widen(const char *beg, const char *end, CharT *dst) const; protected: (3) virtual CharT do_widen(char c) const; protected: (4) virtual const char *do_widen(const char *beg, const char *end, CharT *dst) const; 1,2) public member function, calls the protected…

std::ctype<CharT>::toupper,std::ctype<CharT>::do_toupper – std::ctype<CharT>::toupper,std::ctype<CharT>::do_toupper Synopsis Defined in header<locale> public : (1) CharT toupper(CharT c) const; public: (2) const CharT *toupper(CharT *beg, const CharT *end) const; protected: (3) virtual CharT do_toupper(CharT c) const; protected: (4) virtual const CharT *do_toupper(CharT *beg, const CharT *end) const; 1,2) public member function, calls the protected virtual member function do_toupper of the…

std::ctype<CharT>::tolower,std::ctype<CharT>::do_tolower – std::ctype<CharT>::tolower,std::ctype<CharT>::do_tolower Synopsis Defined in header<locale> public : (1) CharT tolower(CharT c) const; public: (2) const CharT *tolower(CharT *beg, const CharT *end) const; protected: (3) virtual CharT do_tolower(CharT c) const; protected: (4) virtual const CharT *do_tolower(CharT *beg, const CharT *end) const; 1,2) public member function, calls the protected virtual member function do_tolower of the…

std::ctype<CharT>::scan_not,std::ctype<CharT>::do_scan_not – std::ctype<CharT>::scan_not,std::ctype<CharT>::do_scan_not Synopsis Defined in header<locale> public : (1) const CharT *scan_not(mask m, const CharT *beg, const CharT *end) const; protected: (2) virtual const CharT *do_scan_not(mask m, const CharT *beg, const CharT *end) const; 1) public member function, calls the protected virtual member function do_scan_not of the most derived class. 2) Locates the first…

std::ctype<CharT>::scan_is,std::ctype<CharT>::do_scan_is – std::ctype<CharT>::scan_is,std::ctype<CharT>::do_scan_is Synopsis Defined in header<locale> public : (1) const CharT *scan_is(mask m, const CharT *beg, const CharT *end) const; protected: (2) virtual const CharT *do_scan_is(mask m, const CharT *beg, const CharT *end) const; 1) public member function, calls the protected virtual member function do_scan_is of the most derived class. 2) Locates the first…

std::ctype<CharT>::narrow,do_narrow – std::ctype<CharT>::narrow,do_narrow Synopsis Defined in header<locale> public : (1) char narrow(CharT c, char dflt) const; public: const CharT *narrow(const CharT *beg, const CharT *end, (2) char dflt, char *dst) const; protected: (3) virtual char do_narrow(CharT c, char dflt) const; protected: virtual const CharT *do_narrow(const CharT *beg, const CharT *end, (4) char dflt, char *dst)…

std::ctype<CharT>::is,std::ctype<CharT>::do_is – std::ctype<CharT>::is,std::ctype<CharT>::do_is Synopsis Defined in header<locale> public : (1) bool is(mask m, CharT c) const; public: (2) const CharT *is(const CharT *low, const CharT *high, mask *vec) const; protected: (3) virtual bool do_is(mask m, CharT c) const; protected: (4) virtual const CharT *do_is(const CharT *low, const CharT *high, mask *vec) const; 1,2) public member…

std::ctype<char>::~ctype – std::ctype<char>::~ctype Synopsis Defined in header <locale> protected: ~ctype(); Destructs a std::ctype<char> facet. This destructor is protected and virtual (due to base_class destructor being virtual). An object of type std::ctype<char>, 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::ctype<char> – std::ctype<char> Synopsis Defined in header<locale> template <> class ctype<char>; This specialization of std::ctype encapsulates character classification features for type char. Unlike general-purpose std::ctype, which uses virtual functions, this specialization uses table lookup to classify characters (which is generally faster). The base class std::ctype<char> implements character classification equivalent to the minimal "C" locale. The…

std::ctime – std::ctime Synopsis Defined in header<ctime> char *ctime(const std::time_t *time); Converts given time since epoch to a calendar local time and then to a textual representation, as if by calling std::asctime(std::localtime(time)). The resulting string has the following format:   Www Mmm dd hh:mm:ss yyyy * Www – the day of the week (one of Mon,…