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| Purpose |
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Return the number of columns in the problem.
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| Synopsis |
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int QSget_colcount (QSprob p)
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| Arguments |
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p |
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a handle to an initialized problem. |
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| Returns |
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The number of columns (variables) in the problem. If p has not been initialized, QSget_colcount will return 0.
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| Description |
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The value returned by QSget_colcount is the number of variables in the problem, it does not include any slack variables or artificial variables that may have been added during the solution procedure. A common use of this function is to obtain the value of ncols in order to use the functions that access the components of the LP solution.
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| Example |
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/* p is an initialized QSprob, a handle to an existing LP problem */
int ncols;
ncols = QSget_colcount (p);
printf ("Number of variables: %d\n", ncols);
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