code:
// Copyright Aleksey Gurtovoy 2000-2004
//
// 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)
//

// Preprocessed version of "boost/mpl/vector/vector20_c.hpp" header
// -- DO NOT modify by hand!

namespace boost { namespace mpl {

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    >
struct vector11_c
    : v_item<
          integral_c< T,C10 >
        , vector10_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9 >
        >
{
    typedef vector11_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11
    >
struct vector12_c
    : v_item<
          integral_c< T,C11 >
        , vector11_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10 >
        >
{
    typedef vector12_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12
    >
struct vector13_c
    : v_item<
          integral_c< T,C12 >
        , vector12_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11 >
        >
{
    typedef vector13_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13
    >
struct vector14_c
    : v_item<
          integral_c< T,C13 >
        , vector13_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12 >
        >
{
    typedef vector14_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14
    >
struct vector15_c
    : v_item<
          integral_c< T,C14 >
        , vector14_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13 >
        >
{
    typedef vector15_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14, T C15
    >
struct vector16_c
    : v_item<
          integral_c< T,C15 >
        , vector15_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14 >
        >
{
    typedef vector16_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14, T C15, T C16
    >
struct vector17_c
    : v_item<
          integral_c< T,C16 >
        , vector16_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15 >
        >
{
    typedef vector17_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14, T C15, T C16, T C17
    >
struct vector18_c
    : v_item<
          integral_c< T,C17 >
        , vector17_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16 >
        >
{
    typedef vector18_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18
    >
struct vector19_c
    : v_item<
          integral_c< T,C18 >
        , vector18_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17 >
        >
{
    typedef vector19_c type;
    typedef T value_type;
};

template<
      typename T
    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19
    >
struct vector20_c
    : v_item<
          integral_c< T,C19 >
        , vector19_c< T,C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18 >
        >
{
    typedef vector20_c type;
    typedef T value_type;
};

}}

license: mit


code:
program JT65code

! Provides examples of message packing, bit and symbol ordering,
! Reed Solomon encoding, and other necessary details of the JT65
! protocol.

  use packjt
  character*22 msg,msgchk,msg0,msg1,decoded,cok*3,bad*1,msgtype*10,expected
  integer dgen(12),sent(63),tmp(63),recd(12),era(51)
  include 'testmsg.f90'

  nargs=iargc()
  if(nargs.ne.1) then
     print*,'Usage: jt65code "message"'
     print*,'       jt65code -t'
     go to 999
  endif

  call getarg(1,msg)                     !Get message from command line
  msgchk=msg
  call fmtmsg(msgchk,iz)
  nmsg=1
  if(msg(1:2).eq."-t") then
     if (NTEST+5 > MAXTEST) then
        write(*,*) "NTEST exceed MAXTEST"
     endif
     testmsg(NTEST+1)="KA1ABC WB9XYZ EN34 OOO"
     testmsg(NTEST+2)="KA1ABC WB9XYZ OOO"
     testmsg(NTEST+3)="RO"
     testmsg(NTEST+4)="RRR"
     testmsg(NTEST+5)="73"
     testmsgchk(NTEST+1)="KA1ABC WB9XYZ EN34 OOO"
     testmsgchk(NTEST+2)="KA1ABC WB9XYZ OOO"
     testmsgchk(NTEST+3)="RO"
     testmsgchk(NTEST+4)="RRR"
     testmsgchk(NTEST+5)="73"
     nmsg=NTEST+5
  endif

  write(*,1010)
1010 format("    Message                Decoded              Err? Type          Expected"/   &
            76("-"))

  do imsg=1,nmsg
     if(nmsg.gt.1) then
        msg=testmsg(imsg)
        msgchk=testmsgchk(imsg)
     endif

     call fmtmsg(msg,iz)                    !To upper, collapse mult blanks
     msg0=msg                               !Input message
     call chkmsg(msg,cok,nspecial,flip)     !See if it includes "OOO" report
     msg1=msg                               !Message without "OOO"

     if(nspecial.gt.0) then                  !or is a shorthand message
        if(nspecial.eq.2) decoded="RO"
        if(nspecial.eq.3) decoded="RRR"
        if(nspecial.eq.4) decoded="73"
        itype=-1
        msgtype="Shorthand"
        go to 10
     endif

     call packmsg(msg1,dgen,itype,.false.) !Pack message into 12 six-bit bytes
     msgtype=""
     if(itype.eq.1) msgtype="Std Msg"
     if(itype.eq.2) msgtype="Type 1 pfx"
     if(itype.eq.3) msgtype="Type 1 sfx"
     if(itype.eq.4) msgtype="Type 2 pfx"
     if(itype.eq.5) msgtype="Type 2 sfx"
     if(itype.eq.6) msgtype="Free text"

     call rs_encode(dgen,sent)               !RS encode
     call interleave63(sent,1)               !Interleave channel symbols
     call graycode(sent,63,1,sent)           !Apply Gray code

     call graycode(sent,63,-1,tmp)           !Remove Gray code
     call interleave63(tmp,-1)               !Remove interleaving
     call rs_decode(tmp,era,0,recd,nerr)     !Decode the message
     call unpackmsg(recd,decoded,.false.,'      ') !Unpack the user message
     if(cok.eq."OOO") decoded(20:22)=cok
     call fmtmsg(decoded,iz)

10   bad=" "
     if(decoded.ne.msgchk) bad="*"
     expected = 'EXACT'
     if (msg0.ne.msgchk) expected = 'TRUNCATED'
     if (nmsg.eq.1) expected = 'UNKNOWN'
     write(*,1020) imsg,msg0,decoded,bad,itype,msgtype,expected
1020 format(i2,'.',1x,a22,1x,a22,1x,a1,i3,":",a10,2x,a22)
  enddo

  if(nmsg.eq.1 .and. nspecial.eq.0) then
     write(*,1030) dgen
1030 format(/'Packed message, 6-bit symbols ',12i3) !Display packed symbols

     write(*,1040) sent
1040 format(/'Information-carrying channel symbols'/(i5,20i3))
  endif

999 end program JT65code


code:
//  (C) Copyright John Maddock 2007.
//  Use, modification and distribution are subject to 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)
//
//  This file is machine generated, do not edit by hand

// Polynomial evaluation using second order Horners rule
#ifndef BOOST_MATH_TOOLS_RAT_EVAL_16_HPP
#define BOOST_MATH_TOOLS_RAT_EVAL_16_HPP

namespace boost{ namespace math{ namespace tools{ namespace detail{

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T*, const U*, const V&, const mpl::int_<0>*) BOOST_MATH_NOEXCEPT(V)
{
   return static_cast<V>(0);
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V&, const mpl::int_<1>*) BOOST_MATH_NOEXCEPT(V)
{
   return static_cast<V>(a[0]) / static_cast<V>(b[0]);
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<2>*) BOOST_MATH_NOEXCEPT(V)
{
   return static_cast<V>((a[1] * x + a[0]) / (b[1] * x + b[0]));
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<3>*) BOOST_MATH_NOEXCEPT(V)
{
   return static_cast<V>(((a[2] * x + a[1]) * x + a[0]) / ((b[2] * x + b[1]) * x + b[0]));
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<4>*) BOOST_MATH_NOEXCEPT(V)
{
   return static_cast<V>((((a[3] * x + a[2]) * x + a[1]) * x + a[0]) / (((b[3] * x + b[2]) * x + b[1]) * x + b[0]));
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<5>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((a[4] * x2 + a[2]) * x2 + a[0] + (a[3] * x2 + a[1]) * x) / ((b[4] * x2 + b[2]) * x2 + b[0] + (b[3] * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((a[0] * z2 + a[2]) * z2 + a[4] + (a[1] * z2 + a[3]) * z) / ((b[0] * z2 + b[2]) * z2 + b[4] + (b[1] * z2 + b[3]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<6>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((a[5] * x2 + a[3]) * x2 + a[1]) * x + (a[4] * x2 + a[2]) * x2 + a[0]) / (((b[5] * x2 + b[3]) * x2 + b[1]) * x + (b[4] * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((a[0] * z2 + a[2]) * z2 + a[4]) * z + (a[1] * z2 + a[3]) * z2 + a[5]) / (((b[0] * z2 + b[2]) * z2 + b[4]) * z + (b[1] * z2 + b[3]) * z2 + b[5]));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<7>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((a[6] * x2 + a[4]) * x2 + a[2]) * x2 + a[0] + ((a[5] * x2 + a[3]) * x2 + a[1]) * x) / (((b[6] * x2 + b[4]) * x2 + b[2]) * x2 + b[0] + ((b[5] * x2 + b[3]) * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6] + ((a[1] * z2 + a[3]) * z2 + a[5]) * z) / (((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6] + ((b[1] * z2 + b[3]) * z2 + b[5]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<8>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((((a[7] * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x + ((a[6] * x2 + a[4]) * x2 + a[2]) * x2 + a[0]) / ((((b[7] * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x + ((b[6] * x2 + b[4]) * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z + ((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) / ((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z + ((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<9>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((((a[8] * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0] + (((a[7] * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x) / ((((b[8] * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0] + (((b[7] * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8] + (((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z) / ((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8] + (((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<10>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((((a[9] * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x + (((a[8] * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0]) / (((((b[9] * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x + (((b[8] * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z + (((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) / (((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z + (((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<11>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((((a[10] * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0] + ((((a[9] * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x) / (((((b[10] * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0] + ((((b[9] * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10] + ((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z) / (((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10] + ((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<12>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((((((a[11] * x2 + a[9]) * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x + ((((a[10] * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0]) / ((((((b[11] * x2 + b[9]) * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x + ((((b[10] * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10]) * z + ((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z2 + a[11]) / ((((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10]) * z + ((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z2 + b[11]));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<13>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((((((a[12] * x2 + a[10]) * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0] + (((((a[11] * x2 + a[9]) * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x) / ((((((b[12] * x2 + b[10]) * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0] + (((((b[11] * x2 + b[9]) * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10]) * z2 + a[12] + (((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z2 + a[11]) * z) / ((((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10]) * z2 + b[12] + (((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z2 + b[11]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<14>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((((((a[13] * x2 + a[11]) * x2 + a[9]) * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x + (((((a[12] * x2 + a[10]) * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0]) / (((((((b[13] * x2 + b[11]) * x2 + b[9]) * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x + (((((b[12] * x2 + b[10]) * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10]) * z2 + a[12]) * z + (((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z2 + a[11]) * z2 + a[13]) / (((((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10]) * z2 + b[12]) * z + (((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z2 + b[11]) * z2 + b[13]));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<15>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>((((((((a[14] * x2 + a[12]) * x2 + a[10]) * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0] + ((((((a[13] * x2 + a[11]) * x2 + a[9]) * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x) / (((((((b[14] * x2 + b[12]) * x2 + b[10]) * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0] + ((((((b[13] * x2 + b[11]) * x2 + b[9]) * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>((((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10]) * z2 + a[12]) * z2 + a[14] + ((((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z2 + a[11]) * z2 + a[13]) * z) / (((((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10]) * z2 + b[12]) * z2 + b[14] + ((((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z2 + b[11]) * z2 + b[13]) * z));
   }
}

template <class T, class U, class V>
inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<16>*) BOOST_MATH_NOEXCEPT(V)
{
   if(x <= 1)
   {
      V x2 = x * x;
      return static_cast<V>(((((((((a[15] * x2 + a[13]) * x2 + a[11]) * x2 + a[9]) * x2 + a[7]) * x2 + a[5]) * x2 + a[3]) * x2 + a[1]) * x + ((((((a[14] * x2 + a[12]) * x2 + a[10]) * x2 + a[8]) * x2 + a[6]) * x2 + a[4]) * x2 + a[2]) * x2 + a[0]) / ((((((((b[15] * x2 + b[13]) * x2 + b[11]) * x2 + b[9]) * x2 + b[7]) * x2 + b[5]) * x2 + b[3]) * x2 + b[1]) * x + ((((((b[14] * x2 + b[12]) * x2 + b[10]) * x2 + b[8]) * x2 + b[6]) * x2 + b[4]) * x2 + b[2]) * x2 + b[0]));
   }
   else
   {
      V z = 1 / x;
      V z2 = 1 / (x * x);
      return static_cast<V>(((((((((a[0] * z2 + a[2]) * z2 + a[4]) * z2 + a[6]) * z2 + a[8]) * z2 + a[10]) * z2 + a[12]) * z2 + a[14]) * z + ((((((a[1] * z2 + a[3]) * z2 + a[5]) * z2 + a[7]) * z2 + a[9]) * z2 + a[11]) * z2 + a[13]) * z2 + a[15]) / ((((((((b[0] * z2 + b[2]) * z2 + b[4]) * z2 + b[6]) * z2 + b[8]) * z2 + b[10]) * z2 + b[12]) * z2 + b[14]) * z + ((((((b[1] * z2 + b[3]) * z2 + b[5]) * z2 + b[7]) * z2 + b[9]) * z2 + b[11]) * z2 + b[13]) * z2 + b[15]));
   }
}

}}}} // namespaces

#endif // include guard


code:
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2008 Matthias Christian Schabel
// Copyright (C) 2008 Steven Watanabe
//
// 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)

#ifndef BOOST_UNITS_SI_RESISTANCE_HPP
#define BOOST_UNITS_SI_RESISTANCE_HPP

#include <boost/units/systems/si/base.hpp>
#include <boost/units/physical_dimensions/resistance.hpp>

namespace boost {

namespace units {

namespace si {

typedef unit<resistance_dimension,si::system>    resistance;

BOOST_UNITS_STATIC_CONSTANT(ohm,resistance);
BOOST_UNITS_STATIC_CONSTANT(ohms,resistance);

} // namespace si

} // namespace units

} // namespace boost

#endif // BOOST_UNITS_SI_RESISTANCE_HPP