struct triple *new_triple(region r, int i, struct triple *prev) {
struct triple *p = (struct triple *) rstralloc(r, sizeof(struct triple));
p->i = i;
p->j = i;
p->next = prev;
return p;
}
/* Make a new C string with a copy of cstring s */
char *cstring2str(region r, cstring s)
{
int len = s.length + 1;
char *str = rstralloc(r, len);
memcpy(str, s.data, len);
return str;
}
/* Make a new unintialised cstring of length l */
cstring alloc_cstring(region r, int l)
{
cstring cs;
cs.data = rstralloc(r, l + 1);
cs.data[l] = '\0';
cs.length = l;
return cs;
}
struct pair *new_pair(region r, int i, struct pair *prev) {
struct pair *p = (struct pair *) rstralloc(r, sizeof(struct pair));
p->i = i;
p->next = prev;
return p;
}
struct quint *new_quint(region r, int i, struct quint *prev) {
struct quint *p = (struct quint *) rstralloc(r, sizeof(struct quint));
p->i = i;
p->next = prev;
return p;
}
