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TUPLE_EAT added

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[SVN r12295]
This commit is contained in:
Vesa Karvonen
2002-01-13 15:42:53 +00:00
parent a4dc24ae7c
commit 6644430159
3 changed files with 50 additions and 2 deletions
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4
include/boost/preprocessor/while.hpp
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@ -18,6 +18,7 @@
*/
#include <boost/preprocessor/if.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
//! Iterates F(D,X) while C(D,X) is true.
/*!
@ -113,8 +114,7 @@ it possible to compute N*N functions.
#define BOOST_PP_WHILE(C,F,X) BOOST_PP_WHILE_C(C(1,X),0,X)(C,F,F(1,X))
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#define BOOST_PP_WHILE_C(C,D,X) BOOST_PP_IF(C,BOOST_PP_WHILE##D,X BOOST_PP_WHILE_E)
#define BOOST_PP_WHILE_E(C,F,X)
#define BOOST_PP_WHILE_C(C,D,X) BOOST_PP_IF(C,BOOST_PP_WHILE##D,X BOOST_PP_TUPLE3_EAT)
#define BOOST_PP_WHILE0(C,F,X) BOOST_PP_WHILE_C(C(2,X),1,X)(C,F,F(2,X))
#define BOOST_PP_WHILE1(C,F,X) BOOST_PP_WHILE_C(C(3,X),2,X)(C,F,F(3,X))
#define BOOST_PP_WHILE2(C,F,X) BOOST_PP_WHILE_C(C(4,X),3,X)(C,F,F(4,X))