Re: [Bug-glpk] Assertion failed: str2num(buf, &num) == 0 Error detected in file ..\src\glpsql.c at line 900

[Xypron]

Hello Andrew,

please, find a patched glpsql.c appended.

The diff can be seen at
http://glpk.dyndns.org/viewvc/svn/glpk/branches/glpk-4.42-sql_null_data/src/glpsql.c?view=diff&r1=85&r2=83&diff_format=h

Best regards

Xypron


Andrew Makhorin wrote:
> > > Andrew, do you have any suggestion how to patch this bug properly?
> > >        
> > Consider the following example:
> >
> >     table data IN "...": s<- [FROM,TO], d~DISTANCE, c~COST;
> >
> > For fields FROM and TO a null value is not allowed and should cause
> > an error. However, for fields DISTANCE and/or COST it could be allowed,
> > that would mean missing data.
> >      
> I think that if the table driver routine encounters a null value, it
> would be sufficient just *not* to call mpl_tab_set_num/str, in which
> case dca->type[k] being initialized to '?' will not be changed and cause
> an error.
>
>
>

glpsql.tar.gz
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