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Changed functionality so empty arrays/lists when converted to a seq or a tuple expand to nothing.

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Edward Diener
2014-05-05 20:49:20 -04:00
parent 181a88db7e
commit 1f16a481c7
6 changed files with 68 additions and 21 deletions
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5
test/array.cxx
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@ -81,8 +81,6 @@ BEGIN BOOST_PP_SEQ_ELEM(0, BOOST_PP_ARRAY_TO_SEQ(ARRAY)) == 0 END
BEGIN BOOST_PP_SEQ_ELEM(3, BOOST_PP_ARRAY_TO_SEQ((5, (0, 1, 2, 3, 4)))) == 3 END
BEGIN BOOST_PP_SEQ_ELEM(17, BOOST_PP_ARRAY_TO_SEQ(ARRAY_LARGE)) == 17 END
BEGIN BOOST_PP_SEQ_ELEM(42, BOOST_PP_ARRAY_TO_SEQ((64, (0, 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, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)))) == 42 END
BEGIN BOOST_PP_IS_EMPTY(BOOST_PP_SEQ_ELEM(0,BOOST_PP_ARRAY_TO_SEQ(ARRAY_EMPTY))) == 1 END
BEGIN BOOST_PP_SEQ_SIZE(BOOST_PP_ARRAY_TO_SEQ(ARRAY_EMPTY)) == 1 END
// to_tuple
@ -92,8 +90,6 @@ BEGIN BOOST_PP_TUPLE_ELEM(2, BOOST_PP_ARRAY_TO_TUPLE(ARRAY)) == 2 END
BEGIN BOOST_PP_TUPLE_ELEM(1, BOOST_PP_ARRAY_TO_TUPLE((5, (0, 1, 2, 3, 4)))) == 1 END
BEGIN BOOST_PP_TUPLE_ELEM(26, BOOST_PP_ARRAY_TO_TUPLE(ARRAY_LARGE)) == 26 END
BEGIN BOOST_PP_TUPLE_ELEM(37, BOOST_PP_ARRAY_TO_TUPLE((64, (0, 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, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)))) == 37 END
BEGIN BOOST_PP_TUPLE_SIZE(BOOST_PP_ARRAY_TO_TUPLE(ARRAY_EMPTY)) == 1 END
BEGIN BOOST_PP_IS_EMPTY(BOOST_PP_TUPLE_ELEM(0, BOOST_PP_ARRAY_TO_TUPLE(ARRAY_EMPTY))) == 1 END
# else
@ -101,7 +97,6 @@ BEGIN BOOST_PP_TUPLE_ELEM(3, 2, BOOST_PP_ARRAY_TO_TUPLE(ARRAY)) == 2 END
BEGIN BOOST_PP_TUPLE_ELEM(5, 1, BOOST_PP_ARRAY_TO_TUPLE((5, (0, 1, 2, 3, 4)))) == 1 END
BEGIN BOOST_PP_TUPLE_ELEM(33, 26, BOOST_PP_ARRAY_TO_TUPLE(ARRAY_LARGE)) == 26 END
BEGIN BOOST_PP_TUPLE_ELEM(64, 37, BOOST_PP_ARRAY_TO_TUPLE((64, (0, 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, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)))) == 37 END
BEGIN BOOST_PP_IS_EMPTY(BOOST_PP_TUPLE_ELEM(1, 0, BOOST_PP_ARRAY_TO_TUPLE(ARRAY_EMPTY))) == 1 END
# endif