boostorg/static_assert
1
0
Fork 1
mirror of https://github.com/boostorg/static_assert.git synced 2025-07-29 12:17:39 +02:00
Code Issues Packages Projects Releases Wiki Activity

Updated version number, modified static_assert to use BOOST_JOIN rather than it's own version

Browse Source 
[SVN r11079]
This commit is contained in:
John Maddock
2001-09-09 10:05:54 +00:00
parent 9074163b1e
commit b89281496e
1 changed files with 2 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/boost/static_assert.hpp
View File

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