Commit Graph

3 Commits

Author SHA1 Message Date
David Majnemer 150e296459 Lex: Don't let annotation tokens get into macro expansion
We'd let annotation tokens from '#pragma pack' and the like get inside a
function-like macro.  This would lead to terror and mayhem; stop the
madness early.

This fixes PR22037.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224896 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-28 07:42:49 +00:00
Richard Smith c30981a563 Make preprocessor act in a GCC-compatible fashion when a macro is redefined
within its own argument list. The original definition is used for the immediate
expansion, but the new definition is used for any subsequent occurences within
the argument list or after the expansion.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162906 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30 13:38:46 +00:00
Richard Smith a3ca4d6559 Don't allow #include (and its friends #import, #include_next and
#__include_macros) in the arguments of a function-style macro. Directives in the
arguments of such macros have undefined behaviour, and GCC does not correctly
support these cases. In some situations, this can lead to better diagnostics.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16 22:50:01 +00:00