[Bug preprocessor/63413] New: cpp trying to expand "vector" word in commented line in fortran file on power8

[valeryweber at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63413

            Bug ID: 63413
           Summary: cpp trying to expand "vector" word in commented line
                    in fortran file on power8
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
          Assignee: unassigned at gcc dot gnu.org
          Reporter: valeryweber at hotmail dot com

Hi All

The following code produces a wrong error while cpp (4.9.1 power8 ppc64le).
This gets cpp correctly on different archs.

v


cat tmp.F90 
program test
  ! vector
end program test

cpp --version
cpp (Ubuntu 4.9.1-15ubuntu1) 4.9.1
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

cpp -traditional -P tmp.F90













tmp.F90:2:0: error: detected recursion whilst expanding macro "vector"
   ! vector
 ^
program test
  ! vector
end program test