1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
///////////////////////////////////////////////////////////////
// Copyright 2011 John Maddock. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/debug_adaptor.hpp>
#include <iostream>
void t1()
{
//[debug_adaptor_eg
//=#include <boost/multiprecision/debug_adaptor.hpp>
//=#include <boost/multiprecision/cpp_dec_float.hpp>
using namespace boost::multiprecision;
typedef number<debug_adaptor<cpp_dec_float<50> > > fp_type;
fp_type denom = 1;
fp_type sum = 1;
for(unsigned i = 2; i < 50; ++i)
{
denom *= i;
sum += 1 / denom;
}
std::cout << std::setprecision(std::numeric_limits<fp_type>::digits) << sum << std::endl;
//]
}
int main()
{
t1();
return 0;
}
|
