blob: f3b1ee6b7e79db6b9f17713107f4601101ccd773 (
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
|
<html>
<head>
<title>BOOST_PP_COMMA</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_COMMA</b> macro expands to a comma.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_COMMA</b>()
</div>
<h4>Remarks</h4>
<div>
The preprocessor interprets commas as argument separators in macro invocations.
Because of this, commas require special handling.
</div>
<h4>Requirements</h4>
<div>
<b>Header:</b> <a href="../headers/punctuation/comma.html"><boost/preprocessor/punctuation/comma.hpp></a>
</div>
<h4>Sample Code</h4>
<div><pre>
#include <<a href="../headers/control/if.html">boost/preprocessor/control/if.hpp</a>>
#include <<a href="../headers/facilities/empty.html">boost/preprocessor/facilities/empty.hpp</a>>
#include <<a href="../headers/punctuation/comma.html">boost/preprocessor/punctuation/comma.hpp</a>>
<a href="if.html">BOOST_PP_IF</a>(1, <a href="comma.html">BOOST_PP_COMMA</a>, <a href="empty.html">BOOST_PP_EMPTY</a>)() // expands to ,
</pre></div>
<hr size="1">
<div style="margin-left: 0px;">
<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
</br><i>© Copyright Paul Mensonides 2002</i>
</div>
<div style="margin-left: 0px;">
<p><small>Distributed under the Boost Software License, Version 1.0. (See
accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
copy at <a href=
"http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
</div>
</body>
</html>
|
