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
|
/*=============================================================================
Copyright (c) 2011 Thomas Heller
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 <iostream>
#include <cmath>
#include <boost/detail/lightweight_test.hpp>
#include <boost/phoenix/core.hpp>
#include <boost/phoenix/function.hpp>
namespace impl
{
void
test()
{
std::cout << "Test adapting functions...\n";
}
int
negate(int n)
{
return -n;
}
int
plus(int a, int b)
{
return a + b;
}
template <typename T>
T
plus(T a, T b, T c)
{
return a + b + c;
}
int
plus4(int a, int b, int c, int d)
{
return a + b + c + d;
}
}
BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY(void, test, impl::test)
BOOST_PHOENIX_ADAPT_FUNCTION(int, negate, impl::negate, 1)
BOOST_PHOENIX_ADAPT_FUNCTION(int, plus, impl::plus, 2)
BOOST_PHOENIX_ADAPT_FUNCTION(
typename boost::remove_reference<A0>::type
, plus
, impl::plus
, 3
)
BOOST_PHOENIX_ADAPT_FUNCTION(int, plus4, impl::plus4, 4)
int
main()
{
using boost::phoenix::arg_names::arg1;
using boost::phoenix::arg_names::arg2;
int a = 123;
int b = 256;
test()();
BOOST_TEST(::negate(arg1)(a) == -a);
BOOST_TEST(::plus(arg1, arg2)(a, b) == a+b);
BOOST_TEST(::plus(arg1, arg2, 3)(a, b) == a+b+3);
BOOST_TEST(plus4(arg1, arg2, 3, 4)(a, b) == a+b+3+4);
return boost::report_errors();
}
|
