31 Input/output library [input.output]

31.8 String-based streams [string.streams]

31.8.1 Header <sstream> synopsis [sstream.syn]

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namespace std { // [stringbuf], class template basic_stringbuf template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>> class basic_stringbuf; template<class charT, class traits, class Allocator> void swap(basic_stringbuf<charT, traits, Allocator>& x, basic_stringbuf<charT, traits, Allocator>& y) noexcept(noexcept(x.swap(y))); using stringbuf = basic_stringbuf<char>; using wstringbuf = basic_stringbuf<wchar_t>; // [istringstream], class template basic_istringstream template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>> class basic_istringstream; template<class charT, class traits, class Allocator> void swap(basic_istringstream<charT, traits, Allocator>& x, basic_istringstream<charT, traits, Allocator>& y); using istringstream = basic_istringstream<char>; using wistringstream = basic_istringstream<wchar_t>; // [ostringstream], class template basic_ostringstream template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>> class basic_ostringstream; template<class charT, class traits, class Allocator> void swap(basic_ostringstream<charT, traits, Allocator>& x, basic_ostringstream<charT, traits, Allocator>& y); using ostringstream = basic_ostringstream<char>; using wostringstream = basic_ostringstream<wchar_t>; // [stringstream], class template basic_stringstream template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>> class basic_stringstream; template<class charT, class traits, class Allocator> void swap(basic_stringstream<charT, traits, Allocator>& x, basic_stringstream<charT, traits, Allocator>& y); using stringstream = basic_stringstream<char>; using wstringstream = basic_stringstream<wchar_t>; }
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The header <sstream> defines four class templates and eight types that associate stream buffers with objects of class basic_string, as described in [string.classes].