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Docs update

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[SVN r13144]
This commit is contained in:
Vesa Karvonen
2002-03-09 13:55:00 +00:00
parent da66351f86
commit 1ad72e98a9
38 changed files with 273 additions and 9 deletions
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12
include/boost/preprocessor/if_then.hpp
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@ -13,10 +13,16 @@
* See http://www.boost.org for most recent version.
*/
#include <boost/preprocessor/empty.hpp>
#include <boost/preprocessor/if.hpp>
#include <boost/preprocessor/logical/bool.hpp>
/** <p>Expands to <code>T</code> if <code>C != 0</code> and to nothing if <code>C == 0</code>.</p>
<p>For example, <code>BOOST_PP_IF_THEN(1,^)</code> expands to <code>^</code>.</p>
*/
#define BOOST_PP_IF_THEN(C,T) BOOST_PP_IF(C,T BOOST_PP_EMPTY,BOOST_PP_EMPTY)()
#define BOOST_PP_IF_THEN(C,T) BOOST_PP_IF_THEN_BOOL(BOOST_PP_BOOL(C),T)
#define BOOST_PP_IF_THEN_BOOL(C,T) BOOST_PP_IF_THEN_BOOL_DELAY(C,T)
#define BOOST_PP_IF_THEN_BOOL_DELAY(C,T) BOOST_PP_IF_THEN_BOOL##C(T)
#define BOOST_PP_IF_THEN_BOOL0(T)
#define BOOST_PP_IF_THEN_BOOL1(T) T
#endif