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boost-1.41
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b89281496e | |||
9074163b1e |
@ -62,7 +62,7 @@ template<int x> struct static_assert_test{};
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#define BOOST_STATIC_ASSERT( B ) \
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typedef ::boost::static_assert_test<\
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sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >)>\
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BOOST_ASSERT_JOIN(boost_static_assert_typedef_, __LINE__)
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BOOST_JOIN(boost_static_assert_typedef_, __LINE__)
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#else
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// __LINE__ macro broken when -ZI is used see Q199057
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// fortunately MSVC ignores duplicate typedef's.
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@ -74,19 +74,10 @@ template<int x> struct static_assert_test{};
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#else
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// alternative enum based implementation:
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#define BOOST_STATIC_ASSERT( B ) \
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enum { BOOST_ASSERT_JOIN(boost_static_assert_enum_, __LINE__) \
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enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
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= sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >) }
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#endif
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//
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// The following piece of macro magic joins the two
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// arguments together, even when one of the arguments is
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// itself a macro (see 16.3.1 in C++ standard). The key
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// is that macro expansion of macro arguments does not
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// occur in BOOST_DO_ASSERT_JOIN but does in BOOST_ASSERT_JOIN
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// provided it is called from within another macro.
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#define BOOST_ASSERT_JOIN( X, Y ) BOOST_DO_ASSERT_JOIN( X, Y )
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#define BOOST_DO_ASSERT_JOIN( X, Y ) X##Y
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#endif // BOOST_STATIC_ASSERT_HPP
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