//  Boost math_fwd.hpp header file  ------------------------------------------//

 //  (C) Copyright Hubert Holin and Daryle Walker 2001-2002.  Distributed under the Boost

 //  Software License, Version 1.0. (See accompanying file

 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

 //  See http://www.boost.org/libs/math for documentation.

 #ifndef BOOST_MATH_FWD_HPP

 #define BOOST_MATH_FWD_HPP

 namespace boost

 {

 namespace math

 {

 //  From <boost/math/quaternion.hpp>  ----------------------------------------//

 template < typename T >

     class quaternion;

 template < >

     class quaternion< float >;

 template < >

     class quaternion< double >;

 template < >

     class quaternion< long double >;

 // Also has many function templates (including operators)

 //  From <boost/math/octonion.hpp>  ------------------------------------------//

 template < typename T >

     class octonion;

 template < >

     class octonion< float >;

 template < >

     class octonion< double >;

 template < >

     class octonion< long double >;

 // Also has many function templates (including operators)

 //  From <boost/math/special_functions/acosh.hpp>  ---------------------------//

 // Only has function template

 //  From <boost/math/special_functions/asinh.hpp>  ---------------------------//

 // Only has function template

 //  From <boost/math/special_functions/atanh.hpp>  ---------------------------//

 // Only has function template

 //  From <boost/math/special_functions/sinc.hpp>  ----------------------------//

 // Only has function templates

 //  From <boost/math/special_functions/sinhc.hpp>  ---------------------------//

 // Only has function templates

 //  From <boost/math/common_factor.hpp>  -------------------------------------//

 // Only #includes other headers

 //  From <boost/math/common_factor_ct.hpp>  ----------------------------------//

 template < unsigned long Value1, unsigned long Value2 >

     struct static_gcd;

 template < unsigned long Value1, unsigned long Value2 >

     struct static_lcm;

 //  From <boost/math/common_factor_rt.hpp>  ----------------------------------//

 template < typename IntegerType >

     class gcd_evaluator;

 template < typename IntegerType >

     class lcm_evaluator;

 // Also has a couple of function templates

 }  // namespace math

 }  // namespace boost

 #endif  // BOOST_MATH_FWD_HPP