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Avoid Wzero-as-null-pointer-constant warning (#75)

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Newer compilers may warn when using `0`, e.g.:
```
./boost/iterator/detail/facade_iterator_category.hpp:161:5: error: zero as null pointer constant [-Werror,-Wzero-as-null-pointer-constant]
    BOOST_MPL_ASSERT_NOT((is_iterator_category<Traversal>));
    ^
./boost/mpl/assert.hpp:324:58: note: expanded from macro 'BOOST_MPL_ASSERT_NOT'
              boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \
```
This commit is contained in:
Alexander Grund
2023-05-11 05:16:45 +02:00
committed by GitHub
parent db09fb1dce
commit b440c45c28
1 changed files with 3 additions and 3 deletions
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6
include/boost/mpl/assert.hpp
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@@ -297,7 +297,7 @@ BOOST_MPL_AUX_ASSERT_CONSTANT( \
std::size_t \ std::size_t \
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \
boost::mpl::assertion_failed<false>( \ boost::mpl::assertion_failed<false>( \
boost::mpl::assert_arg( (void (*) pred)0, 1 ) \ boost::mpl::assert_arg( (void (*) pred)BOOST_NULLPTR, 1 ) \
) \ ) \
) \ ) \
) \ ) \
@@ -310,7 +310,7 @@ BOOST_MPL_AUX_ASSERT_CONSTANT( \
enum { \ enum { \
BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \
boost::mpl::assertion<false>::failed( \ boost::mpl::assertion<false>::failed( \
boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ boost::mpl::assert_not_arg( (void (*) pred)BOOST_NULLPTR, 1 ) \
) \ ) \
) \ ) \
}\ }\
@@ -321,7 +321,7 @@ BOOST_MPL_AUX_ASSERT_CONSTANT( \
std::size_t \ std::size_t \
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \
boost::mpl::assertion_failed<false>( \ boost::mpl::assertion_failed<false>( \
boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ boost::mpl::assert_not_arg( (void (*) pred)BOOST_NULLPTR, 1 ) \
) \ ) \
) \ ) \
) \ ) \