File: is_placeholder.cpp

package info (click to toggle)
boost1.90 1.90.0-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 593,120 kB
  • sloc: cpp: 4,190,908; xml: 196,648; python: 34,618; ansic: 23,145; asm: 5,468; sh: 3,774; makefile: 1,161; perl: 1,020; sql: 728; ruby: 676; yacc: 478; java: 77; lisp: 24; csh: 6
file content (42 lines) | stat: -rw-r--r-- 1,127 bytes parent folder | download | duplicates (18)
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

// Copyright Aleksey Gurtovoy 2000-2004
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.

// $Id$
// $Date$
// $Revision$

#include <boost/mpl/is_placeholder.hpp>
#include <boost/mpl/placeholders.hpp>
#include <boost/mpl/aux_/test.hpp>

#include <boost/preprocessor/repeat.hpp>
#include <boost/preprocessor/inc.hpp>
#include <boost/preprocessor/cat.hpp>
    
#define AUX_IS_PLACEHOLDER_TEST(unused1, n, unused2) \
    { MPL_ASSERT(( is_placeholder< \
          BOOST_PP_CAT(_,BOOST_PP_INC(n)) \
        > )); } \
/**/

MPL_TEST_CASE()
{
    MPL_ASSERT_NOT(( is_placeholder<int> ));
    MPL_ASSERT_NOT(( is_placeholder<UDT> ));
    MPL_ASSERT_NOT(( is_placeholder<incomplete> ));
    MPL_ASSERT_NOT(( is_placeholder<abstract> ));
    MPL_ASSERT_NOT(( is_placeholder<noncopyable> ));
    MPL_ASSERT(( is_placeholder<_> ));
    
    BOOST_PP_REPEAT(
          BOOST_MPL_LIMIT_METAFUNCTION_ARITY
        , AUX_IS_PLACEHOLDER_TEST
        , unused
        )
}