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
|
///////////////////////////////////////////////////////////////////
// Copyright Christopher Kormanyos 2018 - 2024. //
// 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) //
///////////////////////////////////////////////////////////////////
#include <string>
#include <examples/example_uintwide_t.h>
#include <math/wide_integer/uintwide_t.h>
#if defined(WIDE_INTEGER_NAMESPACE)
auto WIDE_INTEGER_NAMESPACE::math::wide_integer::example003a_cbrt() -> bool
#else
auto ::math::wide_integer::example003a_cbrt() -> bool
#endif
{
#if defined(WIDE_INTEGER_NAMESPACE)
using uint11264_t = WIDE_INTEGER_NAMESPACE::math::wide_integer::uintwide_t<static_cast<WIDE_INTEGER_NAMESPACE::math::wide_integer::size_t>(UINT32_C(11264)), std::uint32_t, std::allocator<std::uint32_t>>;
#else
using uint11264_t = ::math::wide_integer::uintwide_t<static_cast<math::wide_integer::size_t>(UINT32_C(11264)), std::uint32_t, std::allocator<std::uint32_t>>;
#endif
// Create the string '1' + 3,333 times '0', which is
// equivalent to the decimal integral value 10^3333.
const std::string str_a = "1" + std::string(3333U, '0');
const uint11264_t a = str_a.data();
const uint11264_t s = cbrt(a);
// Create the string '1' + 1,111 times '0', which is
// equivalent to the decimal integral value 10^1111.
// (This is the cube root of 10^3333.)
const std::string str_control = "1" + std::string(1111U, '0');
const auto result_is_ok = (s == uint11264_t(str_control.data()));
return result_is_ok;
}
// Enable this if you would like to activate this main() as a standalone example.
#if defined(WIDE_INTEGER_STANDALONE_EXAMPLE003A_CBRT)
#include <iomanip>
#include <iostream>
auto main() -> int
{
#if defined(WIDE_INTEGER_NAMESPACE)
const auto result_is_ok = WIDE_INTEGER_NAMESPACE::math::wide_integer::example003a_cbrt();
#else
const auto result_is_ok = ::math::wide_integer::example003a_cbrt();
#endif
std::cout << "result_is_ok: " << std::boolalpha << result_is_ok << std::endl;
return (result_is_ok ? 0 : -1);
}
#endif
|
