Solaris 2.5.1, gcc version 2.96 20000621; string operator not found

[Jim McKelvey]

C++ program below fails with unresolved + operator for strings. The compile 
succeeds if EITHER the virtual is removed from method f OR the use of generic 
parameter title is replaced with a call to static method name:


#include <string>

template <const string& title>

class X
{
public:

    X(void);

    virtual ~X(void);

    virtual void f(void) const;
//  void f(void) const;

    static const string& name(void);
};


template <const string& title>
X<title>::

X<title>(void)
{
}


template <const string& title>
X<title>::

~X<title>(void)
{
}


template <const string& title>
void X<title>::

f(void) const
{
    string x = title + ':';
//  string x = name() + ':';
}

template <const string& title>
const string& X<title>::

name(void)
{
    return title;
}

extern const string TITLE;


int main(void)
{
    X<TITLE> x;

    return 0;
}




mushroom...private>g++ -v -c test.cc
Reading specs from 
/afs/jpl.nasa.gov/home/m/mckelvey/public/Software/lib/gcc-lib/sparc-sun-solaris2
.5.1/2.96/specs
gcc version 2.96 20000621 (experimental)
 
/afs/jpl.nasa.gov/home/m/mckelvey/public/Software/lib/gcc-lib/sparc-sun-solaris2
.5.1/2.96/cpp -lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=96 
-D__GNUC_PATCHLEVEL__=0 -D__cplusplus -Dsparc -Dsun -Dunix -D__svr4__ -D__SVR4 
-D__sparc__ -D__sun__ -D__unix__ -D__svr4__ -D__SVR4 -D__sparc -D__sun -D__unix 
-Asystem(unix) -Asystem(svr4) -D__EXCEPTIONS -D__GCC_NEW_VARARGS__ -Acpu(sparc) 
-Amachine(sparc) test.cc /var/tmp/cc7JKAr5.ii
GNU CPP version 2.96 20000621 (experimental) (cpplib)
 (sparc)
#include "..." search starts here:
#include <...> search starts here:
 /afs/jpl.nasa.gov/home/m/mckelvey/public/Software/include/g++-3
 /usr/local/include
 
/afs/jpl.nasa.gov/home/m/mckelvey/public/Software/lib/gcc-lib/sparc-sun-solaris2
.5.1/2.96/include
 
/afs/jpl.nasa.gov/home/m/mckelvey/public/Software/sparc-sun-solaris2.5.1/include
 /usr/include
End of search list.
 
/afs/jpl.nasa.gov/home/m/mckelvey/public/Software/lib/gcc-lib/sparc-sun-solaris2
.5.1/2.96/cc1plus /var/tmp/cc7JKAr5.ii -quiet -dumpbase test.cc -version -o 
/var/tmp/cc1KzzA7.s
GNU C++ version 2.96 20000621 (experimental) (sparc-sun-solaris2.5.1) compiled 
by GNU C version 2.96 20000621 (experimental).
test.cc: In method `void X<title>::f () const [with const string &title
= TITLE]':
test.cc:60:   instantiated from here
test.cc:43: invalid operands of types `const basic_string<char,
string_char_traits<char>, __default_alloc_template<false, 0> > &' and
`char' to binary `operator+'
mushroom...private>