Defined in header <locale> public: CharT widen( char c ) const; (1) public: const char* widen( const char* beg, const char* end, CharT* dst ) const; (2) protected: virtual CharT do_widen( char c ) const; (3) protected: virtual const char* do_widen( const char* beg, const char* end, CharT* dst ) const; (4) 1,2) public member function, calls the protected virtual member function do_widen of the most derived class. 3) Converts the single-byte character c to

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, or open files, or any other data is not stored in an object of type jmp_buf. See also setjmp saves the context (function macro) longj

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.

iterator begin(); const_iterator begin() const; const_iterator cbegin() const; (since C++11) Returns an iterator to the first element of the container. If the container is empty, the returned iterator will be equal to end(). Parameters (none). Return value Iterator to the first element. Exceptions (none) (until C++11) noexcept specification: noexcept (since C++11) Complexity Constant. Example See also end cend returns an iterator to the end (publ

Defined in header <string> std::string to_string( int value ); (1) (since C++11) std::string to_string( long value ); (2) (since C++11) std::string to_string( long long value ); (3) (since C++11) std::string to_string( unsigned value ); (4) (since C++11) std::string to_string( unsigned long value ); (5) (since C++11) std::string to_string( unsigned long long value ); (6) (since C++11) std::string to_string( float value ); (7) (since C++11)

Defined in header <ctime> char* asctime( const std::tm* time_ptr ); Converts given calendar time std::tm to a textual representation of the following fixed 25-character form: Www Mmm dd hh:mm:ss yyyy\n. Www - three-letter English abbreviated day of the week from time_ptr->tm_wday, one of Mon, Tue, Wed, Thu, Fri, Sat, Sun. Mmm - three-letter English abbreviated month name from time_ptr->tm_mon, one of Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec. dd

std::pair<iterator,bool> insert( const value_type& value ); (1) (since C++11) template< class P > std::pair<iterator,bool> insert( P&& value ); (2) (since C++11) std::pair<iterator,bool> insert( value_type&& value ); (2) (since C++17) iterator insert( const_iterator hint, const value_type& value ); (3) (since C++11) template< class P > iterator insert( const_iterator hint, P&& value ); (4) (since C++11)

template< class Clock, class Duration > std::cv_status wait_until( std::unique_lock<std::mutex>& lock, const std::chrono::time_point<Clock, Duration>& timeout_time ); (1) (since C++11) template< class Clock, class Duration, class Predicate > bool wait_until( std::unique_lock<std::mutex>& lock, const std::chrono::time_point<Clock, Duration>& timeout_time, Predicate pred ); (2

Defined in header <cmath> bool isnan( float arg ); (1) (since C++11) bool isnan( double arg ); (2) (since C++11) bool isnan( long double arg ); (3) (since C++11) bool isnan( Integral arg ); (4) (since C++11) 1-3) Determines if the given floating point number arg is a not-a-number (NaN) value. 4) A set of overloads or a function template accepting the from argument of any integral type. Equivalent to (2) (the argument is cast to double). Parameters a

Defined in header <mutex> class recursive_mutex; (since C++11) The recursive_mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads. recursive_mutex offers exclusive, recursive ownership semantics: A calling thread owns a recursive_mutex for a period of time that starts when it successfully calls either lock or try_lock. During this period, the thread may make additional calls to lock or try