c++/10255: error with functional object used in parentheses

[jkanze@caicheuvreuse.com]

>Number:         10255
>Category:       c++
>Synopsis:       error with functional object used in parentheses
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 28 17:26:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     James Kanze
>Release:        g++3 (GCC) 3.2.2
>Organization:
>Environment:
SunOS padev054 5.8 Generic_108528-13 sun4u sparc SUNW,Ultra-5_10
>Description:
Following program fails to compile:

----------------less.cc----------------------
struct myless
{
    bool                operator()( char const* a, char const* b )
    {
        return a < b ;
    }
} ;

bool
f( char const* p, char const* p1, char const* p2 )
{
    return ( myless()( p1, p2 ) ) ;
}
----------------less.cc----------------------
compilation log:
---------------------------------------------
054@~/tmp/gcc3 (51): g++3 --verbose -c less.cc
Reading specs from /home/team02/jakan/gnu/lib/gcc-lib/sparc-sun-solaris2.8/3.2.2/specs
Configured with: ../gcc-3.2.2/configure --prefix=/home/team02/jakan/gnu --program-suffix=3 --enable-threads=posix
Thread model: posix
gcc version 3.2.2
 /home/team02/jakan/gnu/lib/gcc-lib/sparc-sun-solaris2.8/3.2.2/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=2 -D__GXX_ABI_VERSION=102 -Dsparc -Dsun -Dunix -D__svr4__ -D__SVR4 -D__PRAGMA_REDEFINE_EXTNAME -D__sparc__ -D__sun__ -D__unix__ -D__svr4__ -D__SVR4 -D__PRAGMA_REDEFINE_EXTNAME -D__sparc -D__sun -D__unix -Asystem=unix -Asystem=svr4 -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 -D__EXTENSIONS__ -D__SIZE_TYPE__=unsigned int -D__PTRDIFF_TYPE__=int -D__WCHAR_TYPE__=long int -D__WINT_TYPE__=long int -D__GCC_NEW_VARARGS__ -Acpu=sparc -Amachine=sparc less.cc -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase less.cc -version -o /var/tmp//cc9DmnFo.s
GNU CPP version 3.2.2 (cpplib) (sparc ELF)
GNU C++ version 3.2.2 (sparc-sun-solaris2.8)
	compiled by GNU C version 3.2.2.
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory "/home/team02/jakan/gnu/sparc-sun-solaris2.8/include"
#include "..." search starts here:
#include <...> search starts here:
 /home/team02/jakan/gnu/include/c++/3.2.2
 /home/team02/jakan/gnu/include/c++/3.2.2/sparc-sun-solaris2.8
 /home/team02/jakan/gnu/include/c++/3.2.2/backward
 /home/team02/jakan/gnu/include
 /home/team02/jakan/gnu/lib/gcc-lib/sparc-sun-solaris2.8/3.2.2/include
 /usr/include
End of search list.
less.cc: In function `bool f(const char*, const char*, const char*)':
less.cc:12: parse error before `,' token
-----------------------------------------
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: