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mslamm@pluto.mscc.huji.ac.il (Zvi Lamm) writes:

>What version of the STL source is going to be in the standard?

You question indicates some confusion between the standard itself,
which will specify the interface to STL, and implementations of the
standard.  The standard itself won't contain any version of the STL source.
Rather, C++ implementations which aim to conform to the standard will
come with some version of the STL source code.

>I ask this since when I asked IBM whether C++/370 will compile the HP STL
>source, I was told to go ahead and check it out myself.
>Now since the compiler is supposed to conform to the proposed standard, I
>thought it MUST compile the STL.

What makes you think that the compiler is supposed to conform to the
proposed standard?

The fact is that there are NO existing compilers which fully conform
to the draft proposed standard.  Remember, it is only a draft, and
it is still subject to change.  Even when the final version of the
standard is published, I think it will take compiler vendors a while to
produce conforming implementations (or at least almost-conforming --
all sufficiently complex programs contain bugs).

I think currently there may be no existing compilers which are
capable of compiling any version of STL which fully conforms to
the draft standard.  So compiler vendors ship with slightly
cut-down implementations of STL, such as the HP version, which do
not quite conform to the draft standard, but which are easier to compile.
Such versions avoid the use of more recently-introduced features such
as template template arguments, default template arguments, and so
forth.

--
Fergus Henderson             	WWW: http://www.cs.mu.oz.au/~fjh
fjh@cs.mu.oz.au              	PGP: finger fjh@128.250.37.3
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mslamm@pluto.mscc.huji.ac.il (Zvi Lamm) writes:

>What version of the STL source is going to be in the standard?

None of the currently-available versions of STL are identical
to what is in the draft C++ standard. The final version of STL
will probably require features that few, if any, C++ compilers
currently support. Versions of STL reasonably close to what will
be the standard are currently available (for popular compilers)
from several sources, some commercial, some free. By "reasonably
close" I mean that code using those versions of STL probably
will not need to be changed when compiled against standard-
conforming C++ libraries when those become available. (The
C++ Standard is not yet complete, so no implementation can
accurately claim to be conforming.)
--
Steve Clamage, stephen.clamage@eng.sun.com
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mslamm@pluto.mscc.huji.ac.il (Zvi Lamm) wrote:

>What version of the STL source is going to be in the standard?

>I ask this since when I asked IBM whether C++/370 will compile the HP STL
>source, I was told to go ahead and check it out myself.
>Now since the compiler is supposed to conform to the proposed standard, I
>thought it MUST compile the STL.
>Can any one clear thing out for me?

Proposed when? Until the standard is approved, there is no standard.

The HP C++ compiler that comes with HP-UX 10 will not compile the STL,
and they developed it (using Borland C++ I understand).

I would be very surprised if C++/370 could handle the STL, but I could
be wrong. Does it have name spaces? Run time information?
-------------------------------------------------------
Eric Friedman		Internet: efried@mindspring.com
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In article <4ic32v$ah@mulga.cs.mu.OZ.AU> fjh@mundook.cs.mu.OZ.AU (Fergus
Henderson) writes:

|> mslamm@pluto.mscc.huji.ac.il (Zvi Lamm) writes:

|> >What version of the STL source is going to be in the standard?

|> You question indicates some confusion between the standard itself,
|> which will specify the interface to STL, and implementations of the
|> standard.  The standard itself won't contain any version of the STL source.
|> Rather, C++ implementations which aim to conform to the standard will
|> come with some version of the STL source code.

I would be very surprised if the standard required the vendor to ship
source.  I think you mean that the implementation will come with a
conforming implementation of STL.

	[Moderator's note: yes, that's what I meant.  -fjh.]

-- 
James Kanze           (+33) 88 14 49 00          email: kanze@gabi-soft.fr
GABI Software, Sarl., 8 rue des Francs Bourgeois, 67000 Strasbourg, France
Conseils, itudes et rialisations en logiciel orienti objet --
              -- A la recherche d'une activiti dans une region francophone
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In article <4ic32v$ah@mulga.cs.mu.OZ.AU> fjh@mundook.cs.mu.OZ.AU (Fergus Hender
son) writes:

> I think currently there may be no existing compilers which are
> capable of compiling any version of STL which fully conforms to
> the draft standard.  So compiler vendors ship with slightly
> cut-down implementations of STL, such as the HP version, which do
> not quite conform to the draft standard, but which are easier to compile.

In particular, note that the STL (both the version described in the
original Stepanov-Lee paper and the version described in the ANSI/ISO
committee draft) relies on member templates and on partial
specialization.  I don't know of any currently shipping compilers that
support either of those features.
-- 
Matt Austern
SGI: MTI Compilers Group
austern@isolde.mti.sgi.com
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