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PREPROCESSOR -> PP. WHILE documented.

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[SVN r12162]
This commit is contained in:
Vesa Karvonen
2001-12-28 11:06:53 +00:00
parent 5991b00456
commit d8b52a3a42
90 changed files with 3441 additions and 1889 deletions
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17
include/boost/preprocessor/cat.hpp
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@ -24,11 +24,11 @@ Example:
<PRE>\verbatim
#define STATIC_ASSERT(EXPR)\
enum\
{ BOOST_PREPROCESSOR_CAT(static_check_,__LINE__) = (EXPR) ? 1 : -1\
{ BOOST_PP_CAT(static_check_,__LINE__) = (EXPR) ? 1 : -1\
};\
typedef char\
BOOST_PREPROCESSOR_CAT(static_assert_,__LINE__)\
[ BOOST_PREPROCESSOR_CAT(static_check_,__LINE__)\
BOOST_PP_CAT(static_assert_,__LINE__)\
[ BOOST_PP_CAT(static_check_,__LINE__)\
]
// ...
@ -48,7 +48,7 @@ The above expands to:
];
\endverbatim</PRE>
Using BOOST_PREPROCESSOR_CAT() above lets the preprocessor expand the __LINE__.
Using BOOST_PP_CAT() above lets the PP expand the __LINE__.
If the above code would use the ## operator directly then __LINE__ would not be
expanded and the above would expand to:
@ -62,9 +62,12 @@ expanded and the above would expand to:
];
\endverbatim</PRE>
*/
#define BOOST_PREPROCESSOR_CAT(L,R) BOOST_PREPROCESSOR_CAT_DELAY(L,R)
#define BOOST_PP_CAT(L,R) BOOST_PP_CAT_DELAY(L,R)
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#define BOOST_PREPROCESSOR_CAT_DELAY(L,R) L##R
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#define BOOST_PP_CAT_DELAY(L,R) L##R
#endif
//! Obsolete. Use BOOST_PP_CAT().
#define BOOST_PREPROCESSOR_CAT(L,R) BOOST_PP_CAT(L,R)
#endif