copy_lp

Copy an existing lprec structure to a new lprec structure.

lprec *copy_lp(lprec *lp);

Return Value

Returns a pointer to a new lprec structure. This must be provided to almost all lp_solve functions.
A NULL return value indicates an error. Specifically not enough memory available to setup an lprec structure.

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

Remarks

The copy_lp function constructs a new LP from an existing lp structure. The new structure is independent from the original one.

Example

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

int main(void)
{
  lprec *lp, *lpcopy;

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

  /* Model created */

  /*
  .
  .
  .
  */

  lpcopy = copy_lp(lp);

  /*
  .
  .
  .
  */

  delete_lp(lp);
  delete_lp(lpcopy);

  return(0);
}

lp_solve API reference