| std::basic_istringstream< _CharT, _Traits, _Alloc >(3cxx) | std::basic_istringstream< _CharT, _Traits, _Alloc >(3cxx) |
NAME¶
std::basic_istringstream< _CharT, _Traits, _Alloc > - Controlling input for std::string.SYNOPSIS¶
Public Types¶
typedef basic_istream< char_type, traits_type > __istream_type
typedef basic_string< _CharT, _Traits, _Alloc > __string_type
typedef basic_stringbuf< _CharT, _Traits, _Alloc > __stringbuf_type
typedef _Alloc allocator_type
typedef _CharT char_type
typedef traits_type::int_type int_type
typedef traits_type::off_type off_type
typedef traits_type::pos_type pos_type
typedef _Traits traits_type
Public Member Functions¶
basic_istringstream ()
Default constructor starts with an empty string buffer. basic_istringstream (basic_istringstream &&__rhs)
basic_istringstream (const __string_type &__str, ios_base::openmode __mode=ios_base::in)
Starts with an existing string buffer. basic_istringstream (const basic_istringstream &)=delete
basic_istringstream (ios_base::openmode __mode)
Starts with an empty string buffer. ~basic_istringstream ()
The destructor does nothing. basic_istringstream & operator= (basic_istringstream &&__rhs)
basic_istringstream & operator= (const basic_istringstream &)=delete
__stringbuf_type * rdbuf () const
Accessing the underlying buffer. __string_type str () const
Copying out the string buffer. void str (const __string_type &__s)
Setting a new buffer. void swap (basic_istringstream &__rhs)
Detailed Description¶
template<typename _CharT, typename _Traits, typename _Alloc>¶
class std::basic_istringstream< _CharT, _Traits, _Alloc >" Controlling input for std::string.Template Parameters
_Traits Traits for character type, defaults to char_traits<_CharT>.
_Alloc Allocator type, defaults to allocator<_CharT>.
This class supports reading from objects of type std::basic_string, using the inherited functions from std::basic_istream. To control the associated sequence, an instance of std::basic_stringbuf is used, which this page refers to as sb.
Definition at line 100 of file iosfwd.
Constructor & Destructor Documentation¶
template<typename _CharT , typename _Traits , typename _Alloc > std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream () [inline]¶
Default constructor starts with an empty string buffer. Initializes sb using in, and passes &sb to the base class initializer. Does not allocate any buffer.That's a lie. We initialize the base class with NULL, because the string class does its own memory management.
Definition at line 425 of file sstream.
template<typename _CharT , typename _Traits , typename _Alloc > std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream (ios_base::openmode __mode) [inline], [explicit]¶
Starts with an empty string buffer.Parameters
ios_base::in is automatically included in __mode.
Initializes sb using __mode|in, and passes &sb to the base class initializer. Does not allocate any buffer.
That's a lie. We initialize the base class with NULL, because the string class does its own memory management.
Definition at line 442 of file sstream.
template<typename _CharT , typename _Traits , typename _Alloc > std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream (const __string_type & __str, ios_base::openmode __mode = ios_base::in) [inline], [explicit]¶
Starts with an existing string buffer.Parameters
__mode Whether the buffer can read, or write, or both.
ios_base::in is automatically included in mode.
Initializes sb using str and mode|in, and passes &sb to the base class initializer.
That's a lie. We initialize the base class with NULL, because the string class does its own memory management.
Definition at line 460 of file sstream.
template<typename _CharT , typename _Traits , typename _Alloc > std::basic_istringstream< _CharT, _Traits, _Alloc >::~basic_istringstream () [inline]¶
The destructor does nothing. The buffer is deallocated by the stringbuf object, not the formatting stream.Definition at line 471 of file sstream.
Member Function Documentation¶
template<typename _CharT , typename _Traits , typename _Alloc > __stringbuf_type* std::basic_istringstream< _CharT, _Traits, _Alloc >::rdbuf () const [inline]¶
Accessing the underlying buffer.Returns
This hides both signatures of std::basic_ios::rdbuf().
Definition at line 511 of file sstream.
template<typename _CharT , typename _Traits , typename _Alloc > __string_type std::basic_istringstream< _CharT, _Traits, _Alloc >::str () const [inline]¶
Copying out the string buffer.Returns
Definition at line 519 of file sstream.
template<typename _CharT , typename _Traits , typename _Alloc > void std::basic_istringstream< _CharT, _Traits, _Alloc >::str (const __string_type & __s) [inline]¶
Setting a new buffer.Parameters
Calls rdbuf()->str(s).
Definition at line 529 of file sstream.
Author¶
Generated automatically by Doxygen for libstdc++ from the source code.| Mon Jul 13 2020 | libstdc++ |