inline typename Functor::result_type sum_series(Functor& func, int bits, boost::uintmax_t& max_terms, const U& init_value)
{
BOOST_MATH_STD_USING
typedef typename Functor::result_type result_type;
result_type factor = ldexp(result_type(1), 1 - bits);
return sum_series(func, factor, max_terms, init_value);
}
inline typename Functor::result_type sum_series(Functor& func, int bits, boost::uintmax_t& max_terms)
{
BOOST_MATH_STD_USING
typedef typename Functor::result_type result_type;
result_type init_val = 0;
return sum_series(func, bits, max_terms, init_val);
}
inline typename Functor::result_type sum_series(Functor& func, int bits)
{
BOOST_MATH_STD_USING
typedef typename Functor::result_type result_type;
boost::uintmax_t iters = (std::numeric_limits<boost::uintmax_t>::max)();
result_type init_val = 0;
return sum_series(func, bits, iters, init_val);
}
int main()
{
double d;
d = sum_series(4, 0.5, 0.25, 0.125, 0.0625);
printf("Sum of series is %f.\n", d);
return 0;
}
int sum_series(int a, int b)
{
int x;
if (a > b)
return -1;
if ( (a < b) && (a != b))
return (a + sum_series(a + 1, b));
if (a == b)
return b;
}
main()
{
int a, b, sum;
printf("Enter two digits\n");
scanf("%d%d", &a, &b);
printf("\na = %d b = %d\n", a, b);
sum = sum_series(a,b);
if (sum == -1)
printf("Unable to process, since a > b\n");
else
printf("Sum of series, from %d to %d = %d\n", a, b, sum);
}
inline typename Functor::result_type sum_series(Functor& func, int bits, const U& init_value)
{
BOOST_MATH_STD_USING
boost::uintmax_t iters = (std::numeric_limits<boost::uintmax_t>::max)();
return sum_series(func, bits, iters, init_value);
}
inline typename Functor::result_type sum_series(Functor& func, const U& factor, boost::uintmax_t& max_terms)
{
typename Functor::result_type init_value = 0;
return sum_series(func, factor, max_terms, init_value);
}
