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<p>Well, it's kind of difficult to tell if it's a compiler bug
without at least trying different GHC versions.<br>
<br>
As it stands I don't think there's enough information to diagnose
the problem. Perhaps provide something reproducible that we could
build on our machines?<br>
<br>
Cheers,<br>
Vanessa McHale<br>
</p>
<div class="moz-cite-prefix">On 2/21/19 9:13 AM, Damien Mattei
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CADEOaddobxowBA-BejE7QJPT6Vq=bJGVDtj1p9x-TzX7aEmnJw@mail.gmail.com">
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<div class="gmail_default" style="font-size:large">my code
is structured like this , in summary:</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">-- this
function will return th N°BD from Sidonie for a given
name<br>
-- note: names have been standardized between Sidonie
and WDS<br>
getAlphaDelta :: Connection -> String -> IO
(Double,Double)<br>
getAlphaDelta conn name = do<br>
let qry_head_AlphaDelta_AngularDistance =
"select alpha,delta from AngularDistance where Nom = ?"
:: Query<br>
(alpha_delta_rows :: [(Double,Double)])
<- query conn qry_head_AlphaDelta_AngularDistance
(Only (name::String))<br>
-- putStrLn $ show alpha_delta_rows<br>
return (head alpha_delta_rows)<br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">main =<br>
<br>
do<br>
conn <- connect defaultConnectInfo<br>
{ connectHost = "moita",<br>
connectUser = "mattei",<br>
connectPassword = "sidonie2",<br>
connectDatabase = "sidonie" }<br>
<br>
<br>
-- check getAlphaDelta works:<br>
<br>
let name3 = "A 7"<br>
putStrLn $ show name3<br>
ad3 <- getAlphaDelta conn name3<br>
putStr "ad3 ="<br>
putStrLn $ show ad3</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">this
works i got result such as:</div>
<div class="gmail_default" style="font-size:large">"A
7"<br>
ad3 =(11297.0,-619.0)</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">if i
move the 5 lines of code at the end of file it segfault</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">between
the begin and end i have some DB connection and
queriung , filtering, mapping...<br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">any
idea?</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">should
i really upgrade the version of GHCI?</div>
<div class="gmail_default" style="font-size:large"><br>
</div>
<div class="gmail_default" style="font-size:large">Damien<br>
</div>
</div>
</div>
</div>
</div>
<br>
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