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Date: Tue, 20 May 2003 09:18:05 -0400
From: Hyman Rosen <hyrosen@mail.com>
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 comp.lang.java.advocacy,comp.object,comp.lang.ada,misc.misc,comp.software-eng
Subject: Re: Quality systems (Was: Using Ada for device drivers? (Was: the
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Date: 2003-05-20T09:18:05-04:00
List-Id: <comp.lang.ada>

The Ghost In The Machine wrote:
> A for_each() construct in C++/STL is highly preferable anyway.

Only if you include some third-party stuff, like Boost's
Lambda Library. The problem with for_each and its ilk is
that you must supply a functor, and without this library
or something similar, that functor has to be defined out
of line, distant from the point where it is used. Using
LL, it's much simpler, and then for_each is OK.

> for_each(a,a+sizeof(a)/sizeof(a[0]),f);

As I said in the other post, it's much better to define
begin and end function templates for arrays. Then do
     for_each(begin(a), end(a), f);
You could also define begin and end for the other
container types and use uniform syntax:
     template <typename T> typename T::iterator
     begin(std::vector<T> &v) { return v.begin(); }
     template <typename T> typename T::const_iterator
     begin(std::vector<T> const &v) { return v.begin(); }