operator<<(<ostream>)
Writes various types to the stream.
template<class _Elem, class _Tr>
basic_ostream<_Elem, _Tr>& operator<<(
basic_ostream<_Elem, _Tr>& _Ostr,
const Elem *_Str
);
template<class _Elem, class _Tr>
basic_ostream<_Elem, _Tr>& operator<<(
basic_ostream<_Elem, _Tr>& _Ostr,
Elem _Ch
);
template<class _Elem, class _Tr>
basic_ostream<_Elem, _Tr>& operator<<(
basic_ostream<_Elem, _Tr>& _Ostr,
const char *_Str
);
template<class _Elem, class _Tr>
basic_ostream<_Elem, _Tr>& operator<< (
basic_ostream<_Elem, _Tr>& _Ostr,
char _Ch
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<< (
basic_ostream<char, _Tr>& _Ostr,
const char *_Str
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<< (
basic_ostream<char, _Tr>& _ostr,
char _Ch
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
const signed char *_Str
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
signed char _Ch
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
const unsigned char *_Str
);
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
unsigned char _Ch
);
template<class _Elem, class _Tr, class _Ty>
basic_ostream<_Elem, _Tr>& operator<<(
basic_ostream<_Elem, _Tr>&& _Ostr,
Ty _Val
);
매개 변수
_Ch
문자입니다._Elem
요소 형식입니다._Ostr
basic_ostream 개체_Str
A character string._Tr
Character traits._Val
The type
반환 값
스트림입니다.
설명
The basic_ostream class also defines several insertion operators. 자세한 내용은 basic_ostream::operator<<을 참조하십시오.
The template function
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _ostr,
const Elem *_Str);
determines the length N = traits_type::length(_Str) of the sequence beginning at _Str, and inserts the sequence. If N < _Ostr.width, then the function also inserts a repetition of _Ostr.width - N fill characters. The repetition precedes the sequence if (_Ostr.flags & adjustfield != left. Otherwise, the repetition follows the sequence. 함수는 _Ostr을 반환합니다.
The template function
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
Elem _Ch);
inserts the element _Ch. If 1 < _Ostr.width, then the function also inserts a repetition of _Ostr.width - 1 fill characters. The repetition precedes the sequence if _Ostr.flags & adjustfield != left. Otherwise, the repetition follows the sequence. It returns _Ostr.
The template function
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
const char *_Str);
behaves the same as
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
const Elem *_Str);
except that each element _Ch of the sequence beginning at _Str is converted to an object of type Elem by calling _Ostr.put(_Ostr.widen(_Ch)).
The template function
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
char _Ch);
behaves the same as
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
Elem _Ch);
except that _Ch is converted to an object of type Elem by calling _Ostr.put(_Ostr.widen(_Ch)).
The template function
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
const char *_Str);
behaves the same as
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
const Elem *_Str);
(It does not have to widen the elements before inserting them.)
The template function
template<class _Tr>
basic_ostream<char, Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
char _Ch);
behaves the same as
template<class _Elem, class _Tr>
basic_ostream<Elem, _Tr>& operator<<(
basic_ostream<Elem, _Tr>& _Ostr,
Elem _Ch);
(It does not have to widen _Ch before inserting it.)
The template function
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
const signed char *_Str);
returns _Ostr << (const char *)_Str.
The template function
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
signed char _Ch);
returns _Ostr << (char)_Ch.
The template function:
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
const unsigned char *_Str);
returns _Ostr << (const char *)_Str.
The template function:
template<class _Tr>
basic_ostream<char, _Tr>& operator<<(
basic_ostream<char, _Tr>& _Ostr,
unsigned char _Ch);
returns _Ostr << (char)_Ch.
The template function:
template<class _Elem, class _Tr, class _Ty>
basic_ostream<_Elem, _Tr>& operator<<(
basic_ostream<char, _Tr>&& _Ostr,
_Ty _Val
);
returns _Ostr << _Val (and converts a RValue Reference to _Ostr to an lvalue in the process).
예제
See flush for an example using operator<<.
요구 사항
Header: <ostream>
네임스페이스: std