The following testcase triggers an internal error in the preprocessor
since GCC 4.2.0:
================================
#define FOO(expr) (#expr)
FOO(
#pragma GCC diagnostic
)
================================
bug.c:5:1: internal error: unspellable token PRAGMA
bug.c:5:1: internal error: unspellable token PRAGMA_EOL
bug.c:3: error: expected identifier or '(' before string constant
This is similar to PR34602, but not yet fixed on mainline.
--
Summary: [4.2/4.3 regression]
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: preprocessor
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34692
