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From: David Abrahams (dave_at_[hidden])
Date: 2002-12-10 15:01:32

Karl Millar <KMillar_at_[hidden]> writes:

> Peter Dimov wrote:
> [snip]
>>From: "David Abrahams" <dave_at_[hidden]>
>>> Two areas that spring to mind are pointer comparisons outside a
>>> single array for unserializing internal object pointers, and the
>>> use of type_info::name() for type identification.
>>Using type_info::name() means that when you recompile your program with
>>another compiler, or a newer version of the same compiler, it might no
>>longer be able to read its files.

I realize that. It still might make sense for some applications. For
example, imagine a build tool which stores a cache of its dependency
graph on disk to avoid re-scanning headers at each invocation. You
could write the compiler and version into the cache, and simply not
use it if the compiler/version don't match up.

Anyway, I'm by no means suggesting that this is appropriate for all or
even most applications. I'm just saying that it can be a useful and
labor-saving technique for some, and it would be nice if the library
allowed some way to exploit it.

                       David Abrahams
   dave_at_[hidden] *
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