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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug preprocessor/52998] New: caret and -ftrack-macro-expansion don't mix well Date: Sun, 15 Apr 2012 20:21:00 -0000 [thread overview] Message-ID: <bug-52998-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52998 Bug #: 52998 Summary: caret and -ftrack-macro-expansion don't mix well Classification: Unclassified Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: preprocessor AssignedTo: unassigned@gcc.gnu.org ReportedBy: manu@gcc.gnu.org With GCC 4.8 and -ftrack-macro-expansion, we get: manuel@gcc12:~$ cat macro-caret.c #define OPERATE(OPRD1, OPRT, OPRD2) \ OPRD1 OPRT OPRD2; #define SHIFTL(A,B) \ OPERATE (A,<<,B) #define MULT(A) \ SHIFTL (A,1) void g () { MULT (1.0);// 1.0 << 1; <-- so this is an error. } manuel@gcc12:~$ ~/trunk/186353M/build/gcc/cc1plus macro-caret.c -ftrack-macro-expansion macro-caret.c:8:13: error: invalid operands of types ‘double’ and ‘int’ to binary ‘operator<<’ SHIFTL (A,1) ^ macro-caret.c:2:14: note: in expansion of macro 'OPERATE' OPRD1 OPRT OPRD2; ^ macro-caret.c:5:3: note: expanded from here OPERATE (A,<<,B) ^ macro-caret.c:5:17: note: in expansion of macro 'SHIFTL' OPERATE (A,<<,B) ^ macro-caret.c:8:3: note: expanded from here SHIFTL (A,1) ^ macro-caret.c:8:13: note: in expansion of macro 'MULT' SHIFTL (A,1) ^ macro-caret.c:13:3: note: expanded from here MULT (1.0);// 1.0 << 1; <-- so this is an error. ^ And with GCC: manuel@gcc12:~$ ~/trunk/186353M/build/gcc/cc1 macro-caret.c -ftrack-macro-expansion macro-caret.c: In function ‘g’: macro-caret.c:5:14: error: invalid operands to binary << (have ‘double’ and ‘int’) OPERATE (A,<<,B) ^ macro-caret.c:2:9: note: in expansion of macro 'OPERATE' OPRD1 OPRT OPRD2; ^ macro-caret.c:5:3: note: expanded from here OPERATE (A,<<,B) ^ macro-caret.c:5:14: note: in expansion of macro 'SHIFTL' OPERATE (A,<<,B) ^ macro-caret.c:8:3: note: expanded from here SHIFTL (A,1) ^ macro-caret.c:8:3: note: in expansion of macro 'MULT' SHIFTL (A,1) ^ macro-caret.c:13:3: note: expanded from here MULT (1.0);// 1.0 << 1; <-- so this is an error. ^ Note that cc1plus prints the error at 8:13 and cc1 at 5:14. Without -ftrac-macro-expansion, both give 13:3.
next reply other threads:[~2012-04-15 20:21 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-04-15 20:21 manu at gcc dot gnu.org [this message] 2012-04-15 20:35 ` [Bug preprocessor/52998] " manu at gcc dot gnu.org 2012-04-15 20:38 ` manu at gcc dot gnu.org 2012-04-24 4:37 ` pinskia at gcc dot gnu.org 2012-04-30 17:28 ` [Bug preprocessor/52998] different macro unwinder for C and C++ (-ftrack-macro-expansion) manu at gcc dot gnu.org 2021-08-02 3:35 ` pinskia at gcc dot gnu.org
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