/* sample.c */

#include <stdio.h>
#include <stdlib.h>
#include <glpk.h>

int main(void)
{ 
  glp_prob *lp;
  lp = glp_create_prob();
  /* the program aborts during the function call */
  /* it should instead return an error code */
  int ret = glp_write_lp(lp, NULL, "problem");
  glp_delete_prob(lp);
  return 0;
}

/* eof */