Re: Compilation Quotient (CQ): A Metric for the Compilation Hardness of Programming Languages

Hans-Peter Diettrich <DrDiettrich1@netscape.net>
Wed, 12 Jun 2024 11:27:21 +0200

          From comp.compilers
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Compilation Quotient (CQ): A Metric for the Compilation Hardness of Programming Languages johnl@taugh.com (John R Levine) (2024-06-10)
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From: Hans-Peter Diettrich <DrDiettrich1@netscape.net>
Newsgroups: comp.compilers
Date: Wed, 12 Jun 2024 11:27:21 +0200
Organization: Compilers Central
References: 24-06-003
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="29487"; mail-complaints-to="abuse@iecc.com"
Keywords: syntax, semantics, comment
Posted-Date: 12 Jun 2024 10:52:28 EDT
In-Reply-To: 24-06-003

On 6/10/24 2:21 PM, John R Levine wrote:
> generates small programs from
> the grammars of several popular programs,
I think that the *syntactic grammar* of program *languages* is meant:
  >>
The key idea is to measure the compilation success rates of programs
sampled from context-free grammars.
<<


Then I wonder how ever valid random programs can be generated for
languages that require a declaration before use of an identifier,
clearly a *semantic* issue. A CQ of 40 for C indicates to me that
certain semantic rules have been built into the program generator.


Or what did I not understand right?


DoDi
[The paper describes the grammars they use. C grammar requires declarations
precede other statements so that's easy to get right. -John]

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