On 3/28/21 23:38, Gerald Pfeifer wrote:
> The original link redirected, alas the new location gives a 404 "Not
> Found". Luckily I found what looks like a more stable location.

Hi.

The newly selected location gives 403, which is not a friendly return code:

wget 
https://www.researchgate.net/publication/221430855_A_Memory_Model_for_Static_Analysis_of_C_Programs
--2022-08-16 10:24:09--  
https://www.researchgate.net/publication/221430855_A_Memory_Model_for_Static_Analysis_of_C_Programs
Resolving www.researchgate.net (www.researchgate.net)... 104.17.32.105, 
104.17.33.105, 2606:4700::6811:2069, ...
Connecting to www.researchgate.net (www.researchgate.net)|104.17.32.105|:443... 
connected.
HTTP request sent, awaiting response... 403 Forbidden
2022-08-16 10:24:09 ERROR 403: Forbidden.

While the original URL works for me (even though it leads to China):

wget http://lcs.ios.ac.cn/~xzx/memmodel.pdf
--2022-08-16 10:24:41--  http://lcs.ios.ac.cn/~xzx/memmodel.pdf
Resolving lcs.ios.ac.cn (lcs.ios.ac.cn)... 124.16.137.50
Connecting to lcs.ios.ac.cn (lcs.ios.ac.cn)|124.16.137.50|:80... connected.
HTTP request sent, awaiting response... 200 OK

Cheers,
Martin

> 
> Pushed.
> 
> Gerald
> 
> 
> 
> commit d15db0c5f5d81e9057df07c9568ee81873860a44
> Author: Gerald Pfeifer <ger...@pfeifer.com>
> Date:   Sun Mar 28 23:34:35 2021 +0200
> 
>     doc: Update link to "Memory Model" paper
>     
>     gcc/ChangeLog:
>             * doc/analyzer.texi (Analyzer Internals): Update link to
>             "A Memory Model for Static Analysis of C Programs".
> 
> diff --git a/gcc/doc/analyzer.texi b/gcc/doc/analyzer.texi
> index 3f7bcf3c115..26808ff5d22 100644
> --- a/gcc/doc/analyzer.texi
> +++ b/gcc/doc/analyzer.texi
> @@ -245,7 +245,7 @@ Merging can be disabled via 
> @option{-fno-analyzer-state-merge}.
>  
>  Part of the state stored at a @code{exploded_node} is a @code{region_model}.
>  This is an implementation of the region-based ternary model described in
> -@url{http://lcs.ios.ac.cn/~xzx/memmodel.pdf,
> +@url{https://www.researchgate.net/publication/221430855_A_Memory_Model_for_Static_Analysis_of_C_Programs,
>  "A Memory Model for Static Analysis of C Programs"}
>  (Zhongxing Xu, Ted Kremenek, and Jian Zhang).
>  

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