<sstream>

Defines several template classes that support iostreams operations on sequences stored in an allocated array object. Such sequences are easily converted to and from objects of template class basic_string.

namespace std {
template<class CharType,
    class Traits = char_traits<CharType>,
    class Allocator = allocator<CharType> >
    class basic_stringbuf;
typedef basic_stringbuf<char> stringbuf;
typedef basic_stringbuf<wchar_t> wstringbuf;

template<class CharType,
    class Traits = char_traits<CharType>,
    class Allocator = allocator<CharType> >
    class basic_istringstream;
typedef basic_istringstream<char> istringstream;
typedef basic_istringstream<wchar_t> wistringstream;

template<class CharType,
    class Traits = char_traits<CharType>,
    class Allocator = allocator<CharType> >
    class basic_ostringstream;
typedef basic_ostringstream<char> ostringstream;
typedef basic_ostringstream<wchar_t> wostringstream;

template<class CharType,
    class Traits = char_traits<CharType>,
    class Allocator = allocator<CharType> >
    class basic_stringstream;
typedef basic_stringstream<char> stringstream;
typedef basic_stringstream<wchar_t> wstringstream;

        // TEMPLATE FUNCTIONS
template<class CharType, class Traits, class Allocator>
    void swap(
        basic_stringbuf<CharType, Traits, Allocator>& _Left,
        basic_stringbuf<CharType, Traits, Allocator>& _Right
    ); 
template<class CharType, class Traits, class Allocator>
    void swap(
        basic_istringstream<CharType, Traits, Allocator>& _Left,
        basic_istringstream<CharType, Traits, Allocator>& _Right
    );
template<class CharType, class Traits, class Allocator>
    void swap(
        basic_ostringstream<CharType, Traits, Allocator>& _Left,
        basic_ostringstream<CharType, Traits, Allocator>& _Right
    );
template<class CharType, class Traits, class Allocator>
    void swap (
        basic_stringstream<CharType, Traits, Allocator>& _Left,
        basic_stringstream<CharType, Traits, Allocator>& _Right
    );
}  // namespace std

Parameters

Parameter	Description
_Left	Reference to an sstream object.
_Right	Reference to an sstream object.

Remarks

Objects of type char * can use the functionality in <strstream> for streaming. However, <strstream> is deprecated and the use of <sstream> is encouraged.

Typedefs

istringstream	Creates a type basic_istringstream specialized on a char template parameter.
ostringstream	Creates a type basic_ostringstream specialized on a char template parameter.
stringbuf	Creates a type basic_stringbuf specialized on a char template parameter.
stringstream	Creates a type basic_stringstream specialized on a char template parameter.
wistringstream	Creates a type basic_istringstream specialized on a wchar_t template parameter.
wostringstream	Creates a type basic_ostringstream specialized on a wchar_t template parameter.
wstringbuf	Creates a type basic_stringbuf specialized on a wchar_t template parameter.
wstringstream	Creates a type basic_stringstream specialized on a wchar_t template parameter.

Manipulators

swap	Exchanges the values between two sstream objects.

Classes

basic_stringbuf	Describes a stream buffer that controls the transmission of elements of type Elem, whose character traits are determined by the class Tr, to and from a sequence of elements stored in an array object.
basic_istringstream	Describes an object that controls extraction of elements and encoded objects from a stream buffer of class basic_stringbuf<Elem, Tr, Alloc>, with elements of type Elem, whose character traits are determined by the class Tr, and whose elements are allocated by an allocator of class Alloc.
basic_ostringstream	Describes an object that controls insertion of elements and encoded objects into a stream buffer of class basic_stringbuf<Elem, Tr, Alloc>, with elements of type Elem, whose character traits are determined by the class Tr, and whose elements are allocated by an allocator of class Alloc.
basic_stringstream	Describes an object that controls insertion and extraction of elements and encoded objects using a stream buffer of class basic_stringbuf<Elem, Tr, Alloc>, with elements of type Elem, whose character traits are determined by the class Tr, and whose elements are allocated by an allocator of class Alloc.

Requirements

• Header: <sstream>

• Namespace: std

See Also

Reference

Thread Safety in the C++ Standard Library

iostream Programming

iostreams Conventions

Other Resources

C++ Standard Library Header Files