- added I/O to Gmpz, Gmpq, in particular mentioning the possibility of

reading into a Gmpq from a floating-point value

Number_types/doc_tex/NumberTypeSupport_ref/Gmpq.tex

@@ -66,6 +66,13 @@ number based on the {\sc Gnu} Multiple Precision Arithmetic Library.
 %SetThreeColumns{std::ostream& }{}{\hspace*{8cm}}
 
 \ccOperations
+\ccFunction{std::ostream& operator<<(std::ostream& out, const Gmpq& q);}
+{writes \ccc{q} to the ostream \ccc{out}, in the form $n/d$.}
+
+\ccFunction{std::istream& operator>>(std::istream& in, Gmpq& q);}
+{reads a number from \ccc{in}, then converts it to a \ccc{Gmpq}. The 
+number may be an integer, a rational number in the form $n/d$, or a
+floating-point number.}
 
 There are two access functions, namely to the
 numerator and the denominator of a rational.
@@ -77,7 +84,6 @@ if  \ccStyle{q.numerator()} and \ccStyle{q.denominator()} are called
 consecutively wrt. \ccStyle{q}, i.e.~\ccStyle{q} is not involved in 
 any other operation between these calls.
 
-
 \ccMethod{Gmpz numerator() const;}
        {returns the numerator of \ccStyle{q}.}
 \ccGlue

Number_types/doc_tex/NumberTypeSupport_ref/Gmpz.tex

@@ -30,6 +30,12 @@ based on the {\sc Gnu} Multiple Precision Arithmetic Library.
             {creates a multiple-precision integer initialized with
              the integral part of \ccStyle{d}.}
 
+\ccOperations
+\ccFunction{std::ostream& operator<<(std::ostream& out, const Gmpz& z);}
+{writes \ccc{z} to the ostream \ccc{out}.}
+
+\ccFunction{std::istream& operator>>(std::istream& in, Gmpz& z);}
+{reads an integer from \ccc{in}, then converts it to a \ccc{Gmpz}.}
 
 \ccImplementation
 \ccc{Gmpz}s are reference counted.