From: "Daniel Llorens del Río" <daniel.llorensdelrio@epfl.ch>
To: Peng Yu <pengyu.ut@gmail.com>, gcc-help@gcc.gnu.org
Subject: Re: Problem when using template as the base class?
Date: Sat, 23 Sep 2006 04:47:00 -0000 [thread overview]
Message-ID: <22D36039-71C3-4DD6-A76F-08F05BD0F04D@epfl.ch> (raw)
In-Reply-To: <366c6f340609221647o49613c18o86bb2b84986f7890@mail.gmail.com>
On 23 Sep, 2006, at 1:47, Peng Yu wrote:
>> I have the following program. It also includes the non-template
>> equivalent class, which works fine. If you uncomment the comments,
>> you
>> will see the compiler errors. The errors are also shown below. Do you
>> know what is wrong? Is it a bug of the compiler?
>>
>> BTW, I use g++-3.4.
>
> I corrected the error by adding template keyword. But I don't
> understand why "template" keyword is need. Would you please help me?
Because when the compiler first parses your function, it doesn't know
what type T is, and so it cannot know that 'T::(something).as' is a
template and 'T::(something)/as<int>' is valid syntax.
This is standard C++, go google up 'templates two-phase name lookup'.
Daniel.
prev parent reply other threads:[~2006-09-23 4:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-22 19:50 Peng Yu
2006-09-22 23:47 ` Peng Yu
2006-09-23 4:47 ` Daniel Llorens del Río [this message]
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