From:	=?iso-8859-1?Q?Andr=E9_P=F6nitz?= <poenitz AT gmx DOT de>
Newsgroups:	comp.lang.c++,comp.os.msdos.djgpp,gnu.g++.help
Subject:	Re: Warning : value_type is implicitly a typename (gcc/gpp-3.1)
Followup-To:	gnu.g++.help
Date:	13 Aug 2002 14:38:06 GMT
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In gnu.g++.help Alex Vinokur <alexvn AT bigfoot DOT com> wrote:
> Nevertheless,  there is inequality of rights
>     between
> typedef map<AAA, vector<BBB<int> >, less<AAA> > map1_typename;
>     and
> typedef map<AAA, vector<BBB<T1> >, less<AAA> > map2_typename;
> 
> map1_typename does NOT require the 'template' word (because of BBB<int> ? )
> map2_typename DOES require the 'template' word (because of BBB<T1> ? )
> 
> Any explanation ?

I think 'typename' is needed if and only if the type in question depends on
the template parameter type, i.e. T1 in this case. [I seem to have heard
something like that, but I am too lazy to look it up right now and it would
explain your observation rather well....]

Andre'

-- 
Those who desire to give up Freedom in order to gain Security,
will not have, nor do they deserve, either one. (T. Jefferson)

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