Fwd: failure notice (fwd)

[<jfesler at gigo dot com>]

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Jason Fesler  <jfesler@gigo.com>  |".. and ten thousand noblemen squatted and
Good, Fast, Cheap -               | strained, for the King's word, was law."
  Pick any two.                   |        - SCA Folklore

---------- Forwarded message ----------
From: Alex Meyer <alex@inktomi.com>
To: jfesler@gigo.com
Subject: Fwd: failure notice
Date: Wed, 19 Jan 2000 19:46:55 -0800 (PST)

Hope you can find the original message in this crap.

Thanks much.

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Subject: failure notice
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Hi. This is the qmail-send program at sourceware.cygnus.com.
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Date: Wed, 19 Jan 2000 19:14:11 -0800 (PST)
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From: Alex Meyer <alex@inktomi.com>
To: gcc-bugs@gcc.gnu.org
Subject: g++ problem with template and conversion operator

Using gcc 2.95.2, I'm running into a problem where templatizing a
class causes its conversion operator not to be found.  The following
code seems to be correct, and compiles when un-templatized.  It
compiles with Sun Workshop 5.0 and, curiosly, with gcc 2.7.2.  I'm
using SPARC Solaris 2.5.1.

Here's the .ii file:

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# 1 "temp.cpp"
template<class T>
struct base {
  operator bool() { return 0; }
};

typedef base<char> foo;

int broken(foo *p) {
  if (*p)
    return -1;
  return 0;
}

int main() {
  foo p;
  return broken(&p);
}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

And here are the command line and gcc standard output:

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
% /home/alex/local/bin/g++ -v --save-temps temp.cpp
Reading specs from /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/specs
gcc version 2.95.2 19991024 (release)
 /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/cpp -lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -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) temp.cpp temp.ii
GNU CPP version 2.95.2 19991024 (release) (sparc)
#include "..." search starts here:
#include <...> search starts here:
 /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/../../../../include/g++-3
 /usr/local/include
 /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/../../../../sparc-sun-solaris2.5.1/include
 /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/include
 /usr/include
End of search list.
The following default directories have been omitted from the search path:
End of omitted list.
 /home/alex/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.2/cc1plus temp.ii -quiet -dumpbase temp.cc -version -o temp.s
GNU C++ version 2.95.2 19991024 (release) (sparc-sun-solaris2.5.1) compiled by GNU C version 2.95.2 19991024 (release).
temp.cpp: In function `int broken(foo *)':
temp.cpp:9: `struct base<char>' used where a `bool' was expected
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Thanks.


[ Alex Meyer       voice-650-653-2840 ] [ Inktomi Corporation    ]
[ alex@inktomi.com   fax-650-653-5485 ] [ 4100 East Third Avenue ]
[ http://personal.inktomi.com/~alex/  ] [ Foster City, CA 94404  ]
------- end -------
-- 


[ Alex Meyer       voice-650-653-2840 ] [ Inktomi Corporation    ]
[ alex@inktomi.com   fax-650-653-5485 ] [ 4100 East Third Avenue ]
[ http://personal.inktomi.com/~alex/  ] [ Foster City, CA 94404  ]