[Bug c/39646] New: __FILE__ breaks for empty file name

[Bug c/39646] New: __FILE__ breaks for empty file name

[neil at gcc dot gnu dot org]

GCC rejects the following strictly conforming TU with -pedantic-errors

extern int x;

#line 24 ""
extern char z[sizeof __FILE__ == 1];


-- 
           Summary: __FILE__ breaks for empty file name
           Product: gcc
           Version: 4.1.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: neil at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39646

[Bug preprocessor/39646] __FILE__ breaks for empty file name

[jsm28 at gcc dot gnu dot org]

-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |16620, 16989
              nThis|                            |
             Status|UNCONFIRMED                 |NEW
          Component|c                           |preprocessor
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-04-08 16:07:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39646

[Bug preprocessor/39646] __FILE__ breaks for empty file name

[jsm28 at gcc dot gnu dot org]

------- Comment #1 from jsm28 at gcc dot gnu dot org  2009-04-18 17:36 -------
Subject: Bug 39646

Author: jsm28
Date: Sat Apr 18 17:36:28 2009
New Revision: 146319

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146319
Log:
libcpp:
        PR preprocessor/39646
        * include/line-map.h (enum lc_reason): Add LC_RENAME_VERBATIM.
        * line-map.c (linemap_add): Handle LC_RENAME_VERBATIM.
        * directives.c (do_line, do_linemarker): Use LC_RENAME_VERBATIM in
        place of LC_RENAME.

gcc/testsuite:
        * gcc.dg/cpp/line8.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/cpp/line8.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/libcpp/ChangeLog
    trunk/libcpp/directives.c
    trunk/libcpp/include/line-map.h
    trunk/libcpp/line-map.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39646

[Bug preprocessor/39646] __FILE__ breaks for empty file name

[jsm28 at gcc dot gnu dot org]

------- Comment #2 from jsm28 at gcc dot gnu dot org  2009-04-18 17:37 -------
Fixed for 4.5.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to work|                            |4.5.0
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39646