istream
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基本[医]iStream包装给定的抽象设备%28 std：：basic[医]提供高级输入接口%28类模板%29
STD：：iStream Basic[医]iStream<char>28%胡枝子f%29
STD：：wistream Basic[医]iStream<wchar[医]T>%28-胡枝子f%29
基本[医]iostream包装给定的抽象设备%28 std：：basic[医]提供高级输入/输出接口%28类模板%29
科技促进发展：：[医]碘流<char>28%胡枝子f%29
STD：：Wiostream Basic[医]碘流<wchar[医]T>%28-胡枝子f%29
功能
运算符>>%28std：：basic[医]iStream%29提取字符和字符数组%28功能模板%29
机械手
WS使用空白%28功能模板%29
简介
二次
namespace std {
template <class charT, class traits = char_traits<charT> >
class basic_istream;
typedef basic_istream<char> istream;
typedef basic_istream<wchar_t> wistream;
template <class charT, class traits = char_traits<charT> >
class basic_iostream;
typedef basic_istream<char> iostream;
typedef basic_istream<wchar_t> wiostream;
template <class charT, class traits>
basic_istream<charT,traits>& ws(basic_istream<charT,traits>& is);
template <class charT, class traits, class T>
basic_istream<charT, traits>&
operator>>(basic_istream<charT, traits>&& is, T& x);
// character extraction templates:
template<class charT, class traits>
basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&,
charT&);
template<class traits>
basic_istream<char,traits>& operator>>(basic_istream<char,traits>&,
unsigned char&);
template<class traits>
basic_istream<char,traits>& operator>>(basic_istream<char,traits>&,
signed char&);
template<class charT, class traits>
basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&,
charT*);
template<class traits>
basic_istream<char,traits>& operator>>(basic_istream<char,traits>&,
unsigned char*);
template<class traits>
basic_istream<char,traits>& operator>>(basic_istream<char,traits>&,
signed char*);
}二次
类std::basic_istream
二次
template <class charT, class traits = char_traits<charT> >
class basic_istream : virtual public basic_ios<charT,traits> {
public:
// types (inherited from basic_ios):
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
typedef traits traits_type;
// Constructor/destructor:
explicit basic_istream(basic_streambuf<char_type,traits>* sb);
virtual ~basic_istream();
// Prefix/suffix:
class sentry;
// Formatted input:
basic_istream<charT,traits>& operator>>(
basic_istream<charT,traits>& (*pf)(basic_istream<charT,traits>&));
basic_istream<charT,traits>& operator>>(
basic_ios<charT,traits>& (*pf)(basic_ios<charT,traits>&));
basic_istream<charT,traits>& operator>>(
ios_base& (*pf)(ios_base&));
basic_istream<charT,traits>& operator>>(bool& n);
basic_istream<charT,traits>& operator>>(short& n);
basic_istream<charT,traits>& operator>>(unsigned short& n);
basic_istream<charT,traits>& operator>>(int& n);
basic_istream<charT,traits>& operator>>(unsigned int& n);
basic_istream<charT,traits>& operator>>(long& n);
basic_istream<charT,traits>& operator>>(unsigned long& n);
basic_istream<charT,traits>& operator>>(long long& n);
basic_istream<charT,traits>& operator>>(unsigned long long& n);
basic_istream<charT,traits>& operator>>(float& f);
basic_istream<charT,traits>& operator>>(double& f);
basic_istream<charT,traits>& operator>>(long double& f);
basic_istream<charT,traits>& operator>>(void*& p);
basic_istream<charT,traits>& operator>>(
basic_streambuf<char_type,traits>* sb);
// Unformatted input:
streamsize gcount() const;
int_type get();
basic_istream<charT,traits>& get(char_type& c);
basic_istream<charT,traits>& get(char_type* s, streamsize n);
basic_istream<charT,traits>& get(char_type* s, streamsize n,
char_type delim);
basic_istream<charT,traits>& get(basic_streambuf<char_type,traits>& sb);
basic_istream<charT,traits>& get(basic_streambuf<char_type,traits>& sb,
char_type delim);
basic_istream<charT,traits>& getline(char_type* s, streamsize n);
basic_istream<charT,traits>& getline(char_type* s, streamsize n,
char_type delim);
basic_istream<charT,traits>& ignore(
streamsize n = 1, int_type delim = traits::eof());
int_type peek();
basic_istream<charT,traits>& read (char_type* s, streamsize n);
streamsize readsome(char_type* s, streamsize n);
basic_istream<charT,traits>& putback(char_type c);
basic_istream<charT,traits>& unget();
int sync();
pos_type tellg();
basic_istream<charT,traits>& seekg(pos_type);
basic_istream<charT,traits>& seekg(off_type, ios_base::seekdir);
protected:
basic_istream(const basic_istream& rhs) = delete;
basic_istream(basic_istream&& rhs);
// Assign/swap:
basic_istream& operator=(const basic_istream& rhs) = delete;
basic_istream& operator=(basic_istream&& rhs);
void swap(basic_istream& rhs);
};二次
类std::basic_iostream
二次
template <class charT, class traits = char_traits<charT> >
class basic_iostream :
public basic_istream<charT,traits>,
public basic_ostream<charT,traits> {
public:
// types
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
typedef traits traits_type;
// constructor/destructor
explicit basic_iostream(basic_streambuf<charT,traits>* sb);
virtual ~basic_iostream();
protected:
basic_iostream(const basic_iostream& rhs) = delete;
basic_iostream(basic_iostream&& rhs);
// assign/swap
basic_iostream& operator=(const basic_iostream& rhs) = delete;
basic_iostream& operator=(basic_iostream&& rhs);
void swap(basic_iostream& rhs);
};二次
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