search for: coq

Displaying 12 results from an estimated 12 matches for "coq".

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2010 Sep 23
6
Named scope in named scope ??
Hi, I would like to return a combination of named scopes in a named scope : For example, I have a named scope filter and I want to add a named scope eval_filters like Product.eval_filters([''x'',''y'',''z'']) is equivalent to Product.filter(''x'').filter(''y'').filter(''z'') Anybody know how can I
2009 Feb 18
2
Tables
Are there any standards emerging for how to represent tables in Markdown? Regards, - Daniel -------------------------------------------- Dr Daniel Winterstein Winterwell Associates Ltd tel: 0772 5172 612 http://www.winterwell.com Registered in Scotland, company no. SC342991
2018 Nov 04
2
Some questions about writing compiler passes.
...help since I was looking to write an instrumentation pass of some sort. I am sort of new. 1. How do compiler passes cope with inline assembly? Can this sometimes violate the optimization assumptions of the pass? 2. What are good ways to verify and validate passes? Can one prove them correct with Coq? Or is it a matter of running and dumping the AST pre and post transform and using tests to verify their correctness? Thanks in advance for your help, Carter. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/2...
2018 Feb 07
1
Possible typo in the C source code of R
Good morning, I am Martin Bodin, a postdoc at the CMM in Santiago de Chile, and I am currently in the process of formalising (a part of) the R language into the Coq proof assistant. This work makes me look frequently at the source code of R. I have noticed a strange line in the file src/main/util.c of the trunk branch: https://github.com/wch/r-source/blob/e42531eff56ee6582d7dc6a46f242af5447c633e/src/main/util.c#L70 The line 70 ?REAL(x)[0] == REAL(x)[0]? does...
2009 Oct 07
2
Rails, flash, function and parameter
Hi, I try do update the flash on my page with ajax. I have this on my layout : <div id="flash_messages"> <%= render :partial => ''layouts/flash'' %> </div> I have this on my ApplicationHelper : def reload_flash page.replace "flash_messages", :partial => ''layouts/flash'' end and I try do that on my controller :
2018 Nov 04
3
Some questions about writing compiler passes.
...> Check out the contents of LLVM's test directory - that's how we check LLVM > optimizations do what's intended (though it doesn't validate that that > intent is correct, or that it doesn't have weird corner cases, etc) > > >> Can one prove them correct with Coq? Or is it a matter of running and >> dumping the AST pre and post transform and using tests to verify their >> correctness? >> > > The AST isn't used for optimization in Clang/LLVM - Clang generates LLVM > IR from Clang's AST (the AST itself is basically immutable...
2008 Oct 16
0
about formal verification about Xen
Dear all, Is there any project or work about the formal analysis of Xen? For example, Using theorem provers, eg. Acl2, isabelle, coq etc. to verify it. Thanks! Cheers:) Liu Jian -- email to: gjk.liu@gmail.org _______________________________________________ Xen-community mailing list Xen-community@lists.xensource.com http://lists.xensource.com/mailman/listinfo/xen-community
2010 Mar 27
1
ar_mailer, class Email : add field to the table?
Hi, I use ar_mailer to send emails from my application. I want to build a page where the admin case see the queue of mails and the possibility of remove some mail in the queue if he wants. The email in the queue are save in the AR model Email. I have an AR model Sent where i save the email that the user sent. I would like to add to the model Email a column to save the id of the corresponding
2013 Apr 03
0
[LLVMdev] Type-based analysis for LLVM IR
On 4/3/13 8:21 AM, Marcelo Sousa wrote: > I am interested in type-based verification of LLVM IR in the areas of > certified compilation and software Can you explain what you mean by type-based verification? Do you mean that you want to use a set of typing rules to perform verification, or do you mean something else? > verification. It seems to me that the LLVM IR type system is
2014 Aug 29
5
[LLVMdev] HELP! PLEASE!
I need help. I can't get it to work. I'm crying here, really, I'm balling my eyes out. Is there any way for a beginner to get support with using LLVM? All my queries are just ignored or disregarded on this mailing list. Why isn't there an llvm mailing list for novices? This is the only thing that can get my programming language, to be operation in a reasonable amount of time,
2013 Apr 03
3
[LLVMdev] Type-based analysis for LLVM IR
I am interested in type-based verification of LLVM IR in the areas of certified compilation and software verification. It seems to me that the LLVM IR type system is rather informal in the sense that there is no paper with a proper formalization of the type rules, and for example, a proof of soundness for well-formedness of the code. I would like to know if you are aware of any work in this
2015 Aug 03
3
[LLVMdev] seeking advice
...at described in the referenced thread I got the idea of solliciting advice seperately. If this is not the right place to ask, though, then please let me know and ignore the remainder of this message. Right now, I only 'really' know Java for my current job, save for some Prolog, Haskell and Coq that I picked up before during my linguistics studies (specializing in categorial grammar, and having supplemented with courses from CS and AI on logic and type theory). I thus still have a long road ahead, already when it comes to just bare theory, let alone implementation. The following is a deta...