http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60491
Bug ID: 60491
Summary: Macros defined in sys/sysmacros.h pulled in by
<iterator> even in -std=c++11
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: will at wmitchell dot net
The following minimal test case:
#include <iterator>
void minor(int row, int col);
fails to compile with gcc 4.8.2 even when -std=c++11 is passed.
$ g++ -std=c++11 -pedantic test.cpp
test.cpp:2:28: error: macro "minor" passed 2 arguments, but takes just 1
void minor(int row, int col);
^
test.cpp:2:6: error: variable or field ‘minor’ declared void
void minor(int row, int col);
^
$
The problem is that <iterator> pulls in sys/sysmacros.h, which defines:
# define major(dev) gnu_dev_major (dev)
# define minor(dev) gnu_dev_minor (dev)
# define makedev(maj, min) gnu_dev_makedev (maj, min)
There is an old, related bug at
https://bugzilla.redhat.com/show_bug.cgi?id=130601 closed as WONTFIX
I'm filing again because my expectation is that -std=c++11 wouldn't pull in
these macros. Obviously these are not reserved words by the standard, so I
don't think pulling in part of the standard library should define these macros.
sys/sysmacros.h may also be pulled in by other standard library headers, I have
not tested which ones do or do not.
