forked from boostorg/preprocessor
44 lines
1.9 KiB
C++
44 lines
1.9 KiB
C++
#ifndef BOOST_PREPROCESSOR_ARITHMETIC_DIV_HPP
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#define BOOST_PREPROCESSOR_ARITHMETIC_DIV_HPP
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/* Copyright (C) 2001
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* Housemarque Oy
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* http://www.housemarque.com
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*
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* Permission to copy, use, modify, sell and distribute this software is
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* granted provided this copyright notice appears in all copies. This
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* software is provided "as is" without express or implied warranty, and
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* with no claim as to its suitability for any purpose.
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*
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* See http://www.boost.org for most recent version.
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*/
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#include <boost/preprocessor/comparison/less_equal.hpp>
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#include <boost/preprocessor/inc.hpp>
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/** <p>Expands to the quotient of <code>X</code> and <code>Y</code>.</p>
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<p>Both <code>X</code> and <code>Y</code> must expand to integer literals
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in the range [0, BOOST_PP_LIMIT_MAG].</p>
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<p>For example, <code>BOOST_PP_DIV(4,3)</code> expands to <code>1</code> (a
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single token).</p>
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<h3>Test</h3>
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<ul>
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<li><a href="../../test/arithmetic_test.cpp">arithmetic_test.cpp</a></li>
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</ul>
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*/
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#define BOOST_PP_DIV(X,Y) BOOST_PP_DIV_D(0,X,Y)
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/** <p>Can be used inside BOOST_PP_WHILE() (see for an explanation of the D parameter).</p> */
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#define BOOST_PP_DIV_D(D,X,Y) BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_WHILE##D(BOOST_PP_DIV_C,BOOST_PP_DIV_F,(0,X,Y)))
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#if !defined(BOOST_NO_COMPILER_CONFIG) && defined(__MWERKS__)
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# define BOOST_PP_DIV_C(D,RCY) BOOST_PP_LESS_EQUAL_D(D,BOOST_PP_TUPLE_ELEM(3,2,RCY),BOOST_PP_TUPLE_ELEM(3,1,RCY))
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# define BOOST_PP_DIV_F(D,RCY) (BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(3,0,RCY)),BOOST_PP_SUB_D(D,BOOST_PP_TUPLE_ELEM(3,1,RCY),BOOST_PP_TUPLE_ELEM(3,2,RCY)),BOOST_PP_TUPLE_ELEM(3,2,RCY))
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#else
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# define BOOST_PP_DIV_C(D,RCY) BOOST_PP_LESS_EQUAL_D(D,BOOST_PP_TUPLE3_ELEM2 RCY,BOOST_PP_TUPLE3_ELEM1 RCY)
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# define BOOST_PP_DIV_F(D,RCY) (BOOST_PP_INC(BOOST_PP_TUPLE3_ELEM0 RCY),BOOST_PP_SUB_D(D,BOOST_PP_TUPLE3_ELEM1 RCY,BOOST_PP_TUPLE3_ELEM2 RCY),BOOST_PP_TUPLE3_ELEM2 RCY)
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#endif
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#endif
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