is_constr_type

Returns if constraint type specified in mask is active.

unsigned char is_constr_type(lprec *lp, int row, int mask);

Return Value

is_constr_type returns TRUE or FALSE

Parameters

Pointer to previously created lp model. See return value of make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI

row

The row for which the constraint type must be retrieved. Must be between 1 and number of rows in the lp.

mask

Any of the following values:

LE (1)	Less than or equal (<=)
EQ (3)	Equal (=)
GE (2)	Greater than or equal (>=)

Remarks

The is_constr_type function returns a flag if constraint type specified in mask is active.

Example

#include <stdio.h>
#include <stdlib.h>
#include "lp_lib.h"

int main(void)
{
  lprec *lp;
  unsigned char constr;

  /* Create a new LP model */
  lp = make_lp(1, 0);
  if(lp == NULL) {
    fprintf(stderr, "Unable to create new LP model\n");
    return(1);
  }

  constr = is_constr_type(lp, 1, LE); /* will be TRUE */

  delete_lp(lp);
  return(0);
}

lp_solve API reference