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Re: [Bug-glpk] xassert(tree != tree) in glp_add_rows()

From: Andrew Makhorin
Subject: Re: [Bug-glpk] xassert(tree != tree) in glp_add_rows()
Date: Mon, 8 Mar 2010 23:02:49 +0300

> glp_add_rows is often used in callback routines. The manual does
> not indicate any case in which it is not allowable to call
> glp_add_rows. But the coding checks the reason code.

> I do not like to look into the source of GLPK to find out what I
> made wrong in my Java program.

> Please, replace operation not allowed by 
> xerror("glp_add_rows: operation not allowed");

> In glpapi01.c you will find some other checks of the reason code
> which are undocumented too (e.g. glp_set_col_name).

> Please, describe in doc/glpk.pdf which operations are allowable inside
> a callback and which are not.

Yes, of course. I plan to rewrite some api routines (in glpapi01.c)
and improve the documentation. I also think that it is reasonable to
describe all errors detected by particular api routines.

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