blob: 8d634c94c414003e8662e679df2b8c5d86654cb3 (
plain)
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
|
/*=============================================================================
Copyright (c) 2001-2007 Joel de Guzman
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)
==============================================================================*/
#ifndef PHOENIX_STATEMENT_DO_WHILE_HPP
#define PHOENIX_STATEMENT_DO_WHILE_HPP
#include <boost/spirit/home/phoenix/core/composite.hpp>
#include <boost/spirit/home/phoenix/core/compose.hpp>
namespace boost { namespace phoenix
{
struct do_while_eval
{
template <typename Env, typename Cond, typename Do>
struct result
{
typedef void type;
};
template <typename RT, typename Env, typename Cond, typename Do>
static void
eval(Env const& env, Cond& cond, Do& do_)
{
do
do_.eval(env);
while (cond.eval(env));
}
};
template <typename Do>
struct do_while_gen
{
do_while_gen(Do const& do_)
: do_(do_) {}
template <typename Cond>
actor<typename as_composite<do_while_eval, Cond, Do>::type>
while_(Cond const& cond) const
{
return compose<do_while_eval>(cond, do_);
}
Do do_;
};
struct do_gen
{
template <typename Do>
do_while_gen<Do>
operator[](Do const& do_) const
{
return do_while_gen<Do>(do_);
}
};
do_gen const do_ = do_gen();
}}
#endif
|
