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[Help-glpk] Error line in GMPL files

From: glpk xypron
Subject: [Help-glpk] Error line in GMPL files
Date: Wed, 23 Feb 2011 22:45:10 +0100

Hello Andrew,

the GLPK library provides functions to read and generate GMPL models.
If an error occurs this is indicated by the return code. I would like
to use the error line to set the cursor in an editor window and mark
the problematic line.

See screnshot of example application provided by GLPK for Java:

Unfortunately structure glp_tran has been defined as opaque substitute
for struct MPL.

For embeddding GLPK into an editor or IDE it would be useful
to provide a function that would take a glp_tran structure as an input
and return the error file, error line, error message, error context,

void glp_mpl_error_get(glp_tran *tran, char **file, int *line,
   char **message, char **context)

Some change in glpmpl04.c, function error will be necessary, because
information is lost when mpl->phase is set to 4 and the function is
left You might copy the necessary information to mpl->line and 
mpl->in_file in the error function if mpl->phase = 3, and save the
variable msg in a new pointer or in mpl->mpl_buf. mpl->context should
be set to null if mpl->phase = 3.

Best regards

Schon gehört? GMX hat einen genialen Phishing-Filter in die
Toolbar eingebaut!

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