#pragma once

#include <petscvec.h>

typedef struct {
  /* --------------- Parameters used by line search method ----------------- */
  PetscReal maxstep; /* maximum step size */
  PetscInt  bracket;
  PetscInt  infoc;

  Vec x;
  Vec W1;
  Vec W2;
  Vec Gold;

} TaoLineSearch_GPCG;