220 41116 article Path: news.gmane.org!.POSTED!not-for-mail From: FrankHB1989 Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: why not formally support meta programming. Date: Wed, 28 Nov 2018 20:25:52 -0800 (PST) Lines: 79 Approved: news@gmane.org Message-ID: References: <668e0a04-c988-4354-ae32-30f626f75403@isocpp.org> <03dc9a29-5756-42e4-8b94-2f69a9debb8f@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_2843_641376002.1543465553085" X-Trace: blaine.gmane.org 1543465431 22853 195.159.176.226 (29 Nov 2018 04:23:51 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 29 Nov 2018 04:23:51 +0000 (UTC) Cc: billconan@gmail.com, dponyatov@gmail.com To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCTJVBPG3QIBBUOU7XPQKGQE4F6YKKI@isocpp.org Thu Nov 29 05:23:46 2018 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yb1-f198.google.com ([209.85.219.198]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gSDrc-0005mh-F2 for gclcip-std-proposals@m.gmane.org; Thu, 29 Nov 2018 05:23:44 +0100 Original-Received: by mail-yb1-f198.google.com with SMTP id t60-v6sf505196ybi.4 for ; Wed, 28 Nov 2018 20:25:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:message-id:in-reply-to:references:subject :mime-version:x-original-sender:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=igBVKhAcS9BO+9E6hmtMTGp8SHzHBlEKc5jStA9c+1g=; b=FxUC8bqVn3bWIMAwvnXyYHkm6jWu0vtHlTC1jAG9rEePJWq+Sm893s8FEfq8Wx2GOO jO1SOal0Xva31znwem9YNPa5aEsBOmJuDKyWAyqLajssUv13dJQUCAIMCRX8sFJXlsa5 8BCwQPb1iLBumn7RXvFT0wiKPtACrgVnZehLb+osY5epVtXQZ7EDl0hNmgc51nA18ZeJ Z7MQYR1mCD2NrhQwyLrMZhbjWntk8vJi70YBipAvnH104mzLg4HNRTFNEgJ7PlsNpKmZ nqrqmFLIrH2vy+5o75MKeCNsGudwXetq8jSR+hVDkWZjvA/h/J/0bGyrIBgMbJBOvbKh iLcQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:message-id:in-reply-to:references:subject :mime-version:x-original-sender:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=igBVKhAcS9BO+9E6hmtMTGp8SHzHBlEKc5jStA9c+1g=; b=XyRO6jPCV82gI5ys9AGHpB3rE7aPiKdBqu7qPrs1DCFXQ3h44tSDf5J9Y6jYeqpc62 xJ2AqO/50Xxlb7VVDwxsiWlI/7uoBz6jf53H8c5i12dtNdlOgFZauVNgRp/7uSyyHZGR aQg83dm37KgAfhvg2P+MOn1zqXFRxPuz2QrGRF1XMGqilElZXKoLfDP89kY81QrbkFas BVyrH/ZOo4merBdd8pU85anoDyJrdhyI5HzkMQu5GW6cR6PQit/FYT2NlsmMJBJ6i3Te Kb5dhcbR+OW5TKiTsVhnd1CIkKmbbrjLCa8dCjcTsI1dug40Nyn6/NVnkcCztHoa2Gx2 T5iQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:message-id:in-reply-to :references:subject:mime-version:x-original-sender:reply-to :precedence:mailing-list:list-id:x-spam-checked-in-group:list-post :list-help:list-archive:list-subscribe:list-unsubscribe; bh=igBVKhAcS9BO+9E6hmtMTGp8SHzHBlEKc5jStA9c+1g=; b=MmSYbPpYJpgCcoIvvPSDEegysX61BG4giRGQJHjhIAGbdFnIdU5qHAjQKOmY63U3bp QpaHcMGf+KpzDXNY65ry0SZkb8F0QyAzabZIgGWwJwRE4YXJu4iWaMK3bmrZWCzxzFMb l6TUBIqLTBu+rInAnf1+ncGvyDIxOPu4Nt6A+3B5v0CJDTl9ojnkn4YV4f1fNJ3VrAy9 woQD/mqVK+jwfb1velio7jZe757kTEO/qX/yPqiryeJ+BzYBUaPihnNPeKs8ij1wJfVg KEMJp+Fdcf6Vjn7TkqarmVub51YNjh6zBW2p/2CsS2L9HoPglv8fZcblX2MJH9L7AT3n W94Q== X-Gm-Message-State: AA+aEWaYGVDMGaf+X2FBd0G5WIxtbO5IF3kB+yK4XpDA3AbpO5bln0X+ MxibFKmY3nW9MF2LFyvKmyOX8w== X-Google-Smtp-Source: AFSGD/XBuuyl7v+07cI9YgySIAbZFHNvOjWbosFGflhU/RX1+JkFmvyXaKdKXNm6SR0MTvTlfso96Q== X-Received: by 2002:a25:af94:: with SMTP id g20-v6mr3789447ybh.30.1543465554656; Wed, 28 Nov 2018 20:25:54 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 2002:a81:3b0f:: with SMTP id i15ls218956ywa.7.gmail; Wed, 28 Nov 2018 20:25:53 -0800 (PST) X-Received: by 2002:a81:27cd:: with SMTP id n196mr107633ywn.2.1543465553674; Wed, 28 Nov 2018 20:25:53 -0800 (PST) In-Reply-To: <03dc9a29-5756-42e4-8b94-2f69a9debb8f@isocpp.org> X-Original-Sender: frankhb1989@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:41116 Archived-At: ------=_Part_2843_641376002.1543465553085 Content-Type: multipart/alternative; boundary="----=_Part_2844_723737917.1543465553085" ------=_Part_2844_723737917.1543465553085 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =E5=9C=A8 2018=E5=B9=B411=E6=9C=8826=E6=97=A5=E6=98=9F=E6=9C=9F=E4=B8=80 UT= C+8=E4=B8=8B=E5=8D=885:18:08=EF=BC=8Cdpon...@gmail.com=E5=86=99=E9=81=93=EF= =BC=9A > > 20 years, no progress... Just replace C preprocessor with Lisp > Lisp rocks here, but far from enough. Notably, traditional Lisp lacks=20 hygiene. Scheme may be better in this point, at the cost of specifying a=20 macro sublanguage as well. But there is a problem come earlier: there are more than one way to do=20 metaprogramming=20 .=20 And some=20 has=20 been proposed. However, I don't find an overall material to cover the whole= =20 topic. --=20 You received this message because you are subscribed to the Google Groups "= ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp= ..org/d/msgid/std-proposals/b9197808-f239-4a39-80c2-974c88208051%40isocpp.or= g. ------=_Part_2844_723737917.1543465553085 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=E5=9C=A8 2018=E5=B9=B411=E6=9C=8826=E6=97=A5=E6= =98=9F=E6=9C=9F=E4=B8=80 UTC+8=E4=B8=8B=E5=8D=885:18:08=EF=BC=8Cdpon...@gma= il.com=E5=86=99=E9=81=93=EF=BC=9A
20 years, no progress... Just replace C preprocessor wi= th Lisp

Lisp rocks here, but far from enough. No= tably, traditional Lisp lacks hygiene. Scheme may be better in this point, = at the cost of specifying a macro sublanguage as well.

But there is = a problem come earlier: there are more than one way to do meta= programming. And some has been proposed. However, I don't = find an overall material to cover the whole topic.

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