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#include "config.h"
#include <assert.h>
#include <ccan/container_of/container_of.h>
#include <ccan/ptrint/ptrint.h>
#include <ccan/agar/agar.h>
#include "simple-graphr.h"
static const void *traversal1_first_edge_r(const struct agar_graph *gr,
const void *nr)
{
int ni = ptr2int(nr);
switch (ni) {
case 1:
case 2:
case 3:
case 7:
case 8:
case 9:
return int2ptr(1);
case 4:
case 5:
case 6:
return NULL;
default:
assert(0);
}
}
static const void *traversal1_next_edge_r(const struct agar_graph *gr,
const void *nr, const void *e)
{
int ni = ptr2int(nr);
int index = ptr2int(e);
assert((ni < 4) || (ni > 6));
if (index == 1)
return int2ptr(2);
else if (index == 2)
return NULL;
else
assert(0);
}
static int traversal1_edge_info_r(const struct agar_graph *gr,
const void *nr, const void *e,
struct agar_edge_info *eir)
{
int ni = ptr2int(nr);
int index = ptr2int(e);
assert((index == 1) || (index == 2));
switch (ni) {
case 1:
if (index == 1)
eir->to = int2ptr(2);
else
eir->to = int2ptr(3);
break;
case 2:
if (index == 1)
eir->to = int2ptr(4);
else
eir->to = int2ptr(5);
break;
case 3:
if (index == 1)
eir->to = int2ptr(5);
else
eir->to = int2ptr(6);
break;
case 7:
if (index == 1)
eir->to = int2ptr(5);
else
eir->to = int2ptr(4);
break;
case 8:
if (index == 1)
eir->to = int2ptr(6);
else
eir->to = int2ptr(5);
break;
case 9:
if (index == 1)
eir->to = int2ptr(8);
else
eir->to = int2ptr(7);
break;
default:
assert(0);
}
return 0;
}
void traversal1_graphr_init(struct traversal1_graphr *t1gr)
{
agar_init_graph(&t1gr->gr,
traversal1_first_edge_r, traversal1_next_edge_r,
traversal1_edge_info_r);
}
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