[Bug gdb/13483] New: gdb not taking 0 for pointer and boolean values

["dnovillo at google dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13483

             Bug #: 13483
           Summary: gdb not taking 0 for pointer and boolean values
           Product: gdb
           Version: unknown
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: dnovillo@google.com
    Classification: Unclassified


I'm debugging cc1plus from GCC trunk (as of 2-3 weeks ago).  I'm trying to make
an inferior call to the function libcpp/line-map.c:linemap_dump:

1160    void
1161    linemap_dump (FILE *stream, struct line_maps *set, unsigned ix, bool
is_macro)


(gdb) call linemap_dump(0,line_table,ix,0)
Cannot resolve function linemap_dump to any overloaded instance

But if I use typecasts, it works:

(gdb) call linemap_dump((FILE *)0,line_table,ix,(bool)0)
Map #0 [0x7ffff7fc2000] - LOC: 2 - REASON: LC_ENTER - SYSP: no
File: /usr/include/bits/posix1_lim.h:1
Included from: [-1] None

I suppose this is intended behaviour, but it is rather irritating.  There is
exactly one linemap_dump function, and I would expect 0 to be trivially
convertible to those types:

(gdb) l linemap_dum<TAB>
linemap_dump(_IO_FILE*, line_maps*, unsigned int, bool)
linemap_dump_location(line_maps*, unsigned int, _IO_FILE*)


Thanks.  Diego.

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