Index: uspace/lib/cpp/include/impl/istream.hpp
===================================================================
--- uspace/lib/cpp/include/impl/istream.hpp	(revision f7aaffe06c246594d2ac20b0ce6bce6cfd84dadb)
+++ uspace/lib/cpp/include/impl/istream.hpp	(revision b0d6e2ae9a91853440a2d1eeffeb10bd9cd66eec)
@@ -34,6 +34,303 @@
 namespace std
 {
+
+    /**
+     * 27.7.2.1, class template basic_stream:
+     */
+
     template<class Char, class Traits = char_traits<Char>>
-    class basic_istream;
+    class basic_istream: virtual public basic_ios<Char, Traits>
+    {
+        public:
+            using traits_type = Traits;
+            using char_type   = Char;
+            using int_type    = typename traits_type::int_type;
+            using pos_type    = typename traits_type::pos_type;
+            using off_type    = typename traits_type::off_type;
+
+            /**
+             * 27.7.2.1.1, constructor/destructor:
+             */
+
+            explicit basic_istream(basic_streambuf<Char, Traits>* sb)
+            {
+                // TODO: implement
+            }
+
+            virtual ~basic_stream()
+            {
+                // TODO: implement
+            }
+
+            /**
+             * 27.7.2.1.3, prefix/suffix:
+             */
+
+            class sentry;
+
+            /**
+             * 27.7.2.2, formatted input:
+             */
+
+            basic_istream<Char, Traits> operator>>(
+                basic_istream<Char, Traits>& (*pf)(basic_istream<Char, Traits>&)
+            )
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(
+                basic_ios<Char, Traits>& (*pf)(basic_ios<Char, Traits>&)
+            )
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(
+                ios_base& (*pf)(ios_base&)
+            )
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(bool& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(short& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(unsigned short& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(int& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(unsigned int& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(long& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(unsigned long& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(long long& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(unsigned long long& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(float& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(double& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(long double& x)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(void*& p)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits> operator>>(basic_streambuf<Char, Traits>* sb)
+            {
+                // TODO: implement
+            }
+
+            /**
+             * 27.7.2.3, unformatted input:
+             */
+
+            streamsize gcount() const
+            {
+                // TODO: implement
+            }
+
+            int_type get()
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& get(char_type& c)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& get(char_type* s, streamsize n)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& get(char_type* s, streamsize n, char_type delim)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& get(basic_streambuf<Char, Traits>& sb)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& get(basic_streambuf<Char, Traits>& sb, char_type delim)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& getline(char_type* s, streamsize n)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& getline(char_type* s, streamsize n, char_type delim)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& ignore(streamsize n = 1, int_type delim = traits_type::eof())
+            {
+                // TODO: implement
+            }
+
+            int_type peek()
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& read(char_type* s, streamsize n)
+            {
+                // TODO: implement
+            }
+
+            streamsize readsome(char_type* s, streamsize n)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& putback(char_type c)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& unget()
+            {
+                // TODO: implement
+            }
+
+            int sync()
+            {
+                // TODO: implement
+            }
+
+            pos_type tellg()
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& seekg(pos_type pos)
+            {
+                // TODO: implement
+            }
+
+            basic_istream<Char, Traits>& seekg(off_type off, ios_base::seekdir way)
+            {
+                // TODO: implement
+            }
+
+        protected:
+            basic_istream(const basic_istream&) = delete;
+
+            basic_istream(basic_istream&& rhs)
+            {
+                // TODO: implement
+            }
+
+            /**
+             * 27.7.2.1.2, assign/swap:
+             */
+
+            basic_istream& operator=(const basic_istream& rhs) = delete;
+
+            basic_istream& operator=(basic_istream&& rhs)
+            {
+                // TODO: implement
+            }
+
+            void swap(basic_stream& rhs)
+            {
+                // TODO: implement
+            }
+    };
+
+    /**
+     * 27.7.2.2.3, character extraction templates:
+     */
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            Char& c)
+    {
+        // TODO: implement
+    }
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            unsigned char& c)
+    {
+        // TODO: implement
+    }
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            signed char& c)
+    {
+        // TODO: implement
+    }
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            Char* c)
+    {
+        // TODO: implement
+    }
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            unsigned char* c)
+    {
+        // TODO: implement
+    }
+
+    template<class Char, class Traits>
+    basic_istream<Char, Traits>& operator>>(basic_istream<Char, Traits>& is,
+                                            signed char* c)
+    {
+        // TODO: implement
+    }
 
     using istream  = basic_istream<char>;