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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// Copyright John Maddock 2013.
// 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)
//[special_data_example
#include <boost/multiprecision/mpfr.hpp>
#include <boost/math/tools/test_data.hpp>
#include <boost/test/included/prg_exec_monitor.hpp>
#include <boost/math/tools/tuple.hpp>
#include <fstream>
using namespace boost::math::tools;
using namespace boost::math;
using namespace std;
using namespace boost::multiprecision;
typedef number<mpfr_float_backend<1000> > mp_type;
boost::math::tuple<mp_type, mp_type, mp_type> generate(mp_type a)
{
mp_type tg, lg;
mpfr_gamma(tg.backend().data(), a.backend().data(), GMP_RNDN);
mpfr_lngamma(lg.backend().data(), a.backend().data(), GMP_RNDN);
return boost::math::make_tuple(a, tg, lg);
}
int cpp_main(int argc, char*argv [])
{
parameter_info<mp_type> arg1, arg2;
test_data<mp_type> data;
bool cont;
std::string line;
if(argc < 1)
return 1;
do{
//
// User interface which prompts for
// range of input parameters:
//
if(0 == get_user_parameter_info(arg1, "a"))
return 1;
arg1.type |= dummy_param;
typedef boost::math::tuple<mp_type, mp_type, mp_type>(*proc_type)(mp_type);
proc_type p = &generate;
data.insert(p, arg1);
std::cout << "Any more data [y/n]?";
std::getline(std::cin, line);
boost::algorithm::trim(line);
cont = (line == "y");
}while(cont);
//
// Just need to write the results to a file:
//
std::cout << "Enter name of test data file [default=gamma.ipp]";
std::getline(std::cin, line);
boost::algorithm::trim(line);
if(line == "")
line = "gamma.ipp";
std::ofstream ofs(line.c_str());
line.erase(line.find('.'));
ofs << std::scientific << std::setprecision(500);
write_code(ofs, data, line.c_str());
return 0;
}
//]
|
