// Undocumented input functions
extern const cl_N read_complex (const cl_read_flags& flags, const char * string, const char * string_limit, const char * * end_of_parse);
-extern const cl_N read_complex (cl_istream stream, const cl_read_flags& flags);
+extern const cl_N read_complex (std::istream& stream, const cl_read_flags& flags);
// Documented input functions
-inline cl_istream operator>> (cl_istream stream, cl_N& result)
+inline std::istream& operator>> (std::istream& stream, cl_N& result)
{
extern cl_read_flags cl_N_read_flags;
result = read_complex(stream,cl_N_read_flags);
// print_complex(stream,z);
// > z: komplexe Zahl
// > stream: Stream
-extern void print_complex (cl_ostream stream, const cl_print_flags& flags, const cl_N& z);
-extern void print_complex (cl_ostream stream, const cl_print_number_flags& flags, const cl_N& z);
+extern void print_complex (std::ostream& stream, const cl_print_flags& flags, const cl_N& z);
+extern void print_complex (std::ostream& stream, const cl_print_number_flags& flags, const cl_N& z);
-inline void fprint (cl_ostream stream, const cl_N& x)
+inline void fprint (std::ostream& stream, const cl_N& x)
{
extern cl_print_flags default_print_flags;
print_complex(stream,default_print_flags,x);