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- Newsgroups: comp.std.c++
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!swrinde!network.ucsd.edu!qualcom.qualcomm.com!harvey.qualcomm.com!greg
- From: greg@harvey.qualcomm.com (Greg Noel)
- Subject: Re: Use of nested functions (Was: Proposal for default scope)
- Message-ID: <1993Jan10.023440.27522@qualcomm.com>
- Sender: news@qualcomm.com
- Nntp-Posting-Host: harvey.qualcomm.com
- Organization: Qualcomm, Inc., San Diego, CA
- References: <1993Jan9.173310.13214@taumet.com>
- Date: Sun, 10 Jan 1993 02:34:40 GMT
- Lines: 33
-
- Steve Clamage <steve@taumet.com> writes:
- >I have to disagree with this point. C++ hides a lot of grungy detail
- >from the programmer, with the consequence that simple constructs may
- >require a lot of compiler-generated code.
-
- There's a difference between hiding a lot of grungy detail and intrinsic
- inefficiency. If the compiler filling in the grungy details is what is
- causing the inefficiency, the programmer can always replace it with something
- more efficient. If it's inefficient because of something required by the
- language, that's not possible.
-
- It's curious---I posted my original article to try to start a discussion
- about how something like modules or packages could be added to C++ as
- seamlessly as possible, because I see that as something that the language
- doesn't handle well and needs badly. But most of the responses have been
- from people who reacted to one throw-away clause as a disparagement of
- nested functions, which is not what I intended at all.
-
- Personally, I'd prefer to let those who feel passionately about nested
- functions debate this point. As it is, I'm mooting a point about which
- I don't care very much. In my thirty years of experience, including using
- languages that provided them, I've only wanted nested functions a few
- times---and I've _never_ wanted to take the address of one. If I don't
- use them and if they don't cause me any inefficiency, then I don't really
- care if they are present or not.
-
- On the other hand, there are literally hundreds of times I've wanted to
- have a helper function that was not externally visible. In C, a static
- function provides most of the functionality I want, while in C++ it's
- all but impossible. If C++ wants to be considered a ``better'' language
- than C, that's something that will have to be addressed.
- --
- -- Greg Noel, Unix Guru greg@qualcomm.com or greg@noel.cts.com
-