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| Purpose |
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Delete a list of columns, specified by names.
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| Synopsis |
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int QSdelete_named_columns_list(QSprob p,
int num, const char **colnames)
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| Arguments |
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p |
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a handle to an initialized problem. |
num |
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the number of columns to be deleted. |
colnames |
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an array of length num; the entries in the array are strings specifying the names of the columns (variables) to be deleted. |
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| Returns |
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A zero value if the function terminated correctly, and a non-zero value if an error occurred. If one or more of the columns is not in the LP problem, an error will be returned.
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| Description |
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This function can be used to delete a set of variables from an existing LP problem by specifying the names of the variables in a list. It is more efficient to use this function then to use repeated calls to QSdelete_named_column.
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| Example |
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/* Assume p is an initialized LP problem. */
/* Delete variables v and w. */
int rval;
const char *dlist[2] = { "v", "w" };
rval = QSdelete_named_columns_list (p, 2, dlist);
if (rval) {
fprintf (stderr,
"could not delete variables, error code %d\n", rval);
}
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