Defined in header <type_traits> template< class T > struct is_fundamental; (since C++11) If T is a fundamental type (that is, arithmetic type, void, or nullptr_t), provides the member constant value equal true. For any other type, value is false. Template parameters T - a type to check Helper variable template template< class T > constexpr bool is_fundamental_v = is_fundamental<T>::value; (since C++17) Inherited from std::integra

std::basic_string<CharT,Traits,Allocator> str() const; (1) void str(const std::basic_string<CharT,Traits,Allocator>& new_str); (2) Manages the contents of the underlying string object. 1) Returns a copy of the underlying string as if by calling rdbuf()->str(). 2) Replaces the contents of the underlying string as if by calling rdbuf()->str(new_str). Parameters new_str - new contents of the underlying string Return value 1) a copy of the underlyin

Defined in header <ios> std::ios_base& showpos( std::ios_base& str ); (1) std::ios_base& noshowpos( std::ios_base& str ); (2) Enables or disables the display of the plus sign '+' in non-negative integer output. Has no effect on input. 1) enables the showpos flag in the stream str as if by calling str.setf(std::ios_base::showpos). 2) disables the showpos flag in the stream str as if by calling str.unsetf(std::ios_base::showpos). This is an I/O manipulat

The concept Compare is a set of requirements expected by some of the standard library facilities from the user-provided function object types. The return value of the function call operation applied to an object of type Compare, when contextually converted to bool, yields true if the first argument of the call appears before the second in the strict weak ordering relation induced by this Compare type, and false otherwise. As with any BinaryPredicate, evaluation of that expression is not allowed

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 set. 2) (none). Complexity Constant.

protected: void init( std::basic_streambuf<CharT,Traits>* sb ); Sets the associated stream buffer to sb and initializes the internal state. The postconditions are as follows: Element Value rdbuf() sb tie() NULL rdstate() goodbit if sb is not NULL, otherwise badbit exceptions() goodbit flags() skipws | dec width() ​0​ precision() 6 fill() widen(' ') getloc() a copy of the value returned by std::locale() This member function is protected: it

Usage dynamic_cast type conversion expression: as the declaration of the expression

Defined in header <memory> template< class T, class Alloc, class... Args > shared_ptr<T> allocate_shared( const Alloc& alloc, Args... args ); (since C++11) Constructs an object of type T and wraps it in a std::shared_ptr using args as the parameter list for the constructor of T. All memory allocation is done using a copy of alloc, which satisfies the Allocator requirements. The copy constructor and the destructor of Alloc must not throw exceptions. Paramet

pos_type pubseekoff( off_type off, ios_base::seekdir dir, ios_base::openmode which = ios_base::in | ios_base::out ); (1) protected: virtual pos_type seekoff( off_type off, ios_base::seekdir dir, ios_base::openmode which = ios_base::in | ios_base::out ); (2) Sets the position indicator of the input and/or output sequence relative to some other position. 1) Calls seekoff(off, dir, which) of the most derived class. 2) The base class vers

std::locale getloc() const; Returns the associated locale. The associated locale is the value supplied to pubimbue() on the last call, or, if that function has not been called, the value of the global locale (std::locale) at the time of the construction of the streambuf. Parameters (none). Return value The associated locale. Example See also pubimbue invokes imbue() (public member function)