operator>>

Overloaded extractor for stream input operations.

  template <class charT, class traits, class Allocator>

  basic_istream<charT,traits>& operator>>

  (basic_istream<charT,traits>& is,

  basic_string<charT,traits,Allocator>& str);

Remarks

Characters are extracted and appended until n characters are stored or end-of-file occurs on the input sequence;