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synced 2024-12-22 10:05:31 +02:00
qpkg: removed non-generic jrb access functions
- jrb.h, jrb.c (jrb_insert_str, jrb_insert_int, jrb_insert_dbl): removed - jrb.h, jrb.c (jrb_find_str, jrb_find_int, jrb_find_dbl): removed - jrb.h, jrb.c (jrb_find_gte_str, jrb_find_gte_int, jrb_find_gte_dbl): removed - jrb.c (jrb_print_tree, jrb_iprint_tree): removed unused tree dump functions
This commit is contained in:
Werner Almesberger
parent
b4ff969a24
commit
769d31581d
191
qpkg/jrb.c
191
qpkg/jrb.c
@ -50,8 +50,6 @@ static JRB lprev(JRB n);
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static JRB rprev(JRB n);
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static void recolor(JRB n);
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static void single_rotate(JRB y, int l);
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static void jrb_print_tree(JRB t, int level);
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static void jrb_iprint_tree(JRB t, int level);
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#define isred(n) (n->red)
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#define isblack(n) (!isred(n))
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@ -167,108 +165,6 @@ JRB make_jrb(void)
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return head;
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}
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JRB jrb_find_gte_str(JRB n, char *key, int *fnd)
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{
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int cmp;
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*fnd = 0;
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if (!ishead(n)) {
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fprintf(stderr, "jrb_find_gte_str called on non-head %p\n", n);
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exit(1);
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}
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if (n->parent == n) return n;
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cmp = strcmp(key, n->blink->key.s);
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if (cmp == 0) {
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*fnd = 1;
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return n->blink;
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}
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if (cmp > 0) return n;
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else n = n->parent;
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while (1) {
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if (isext(n)) return n;
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cmp = strcmp(key, getlext(n)->key.s);
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if (cmp == 0) {
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*fnd = 1;
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return getlext(n);
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}
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if (cmp < 0) n = n->flink ; else n = n->blink;
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}
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}
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JRB jrb_find_str(JRB n, char *key)
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{
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int fnd;
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JRB j;
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j = jrb_find_gte_str(n, key, &fnd);
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if (fnd) return j; else return NULL;
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}
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JRB jrb_find_gte_int(JRB n, int ikey, int *fnd)
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{
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*fnd = 0;
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if (!ishead(n)) {
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fprintf(stderr, "jrb_find_gte_int called on non-head %p\n", n);
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exit(1);
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}
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if (n->parent == n) return n;
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if (ikey == n->blink->key.i) {
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*fnd = 1;
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return n->blink;
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}
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if (ikey > n->blink->key.i) return n;
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else n = n->parent;
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while (1) {
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if (isext(n)) return n;
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if (ikey == getlext(n)->key.i) {
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*fnd = 1;
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return getlext(n);
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}
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n = (ikey < getlext(n)->key.i) ? n->flink : n->blink;
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}
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}
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JRB jrb_find_int(JRB n, int ikey)
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{
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int fnd;
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JRB j;
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j = jrb_find_gte_int(n, ikey, &fnd);
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if (fnd) return j; else return NULL;
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}
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JRB jrb_find_gte_dbl(JRB n, double dkey, int *fnd)
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{
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*fnd = 0;
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if (!ishead(n)) {
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fprintf(stderr, "jrb_find_gte_dbl called on non-head %p\n", n);
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exit(1);
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}
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if (n->parent == n) return n;
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if (dkey == n->blink->key.d) {
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*fnd = 1;
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return n->blink;
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}
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if (dkey > n->blink->key.d) return n;
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else n = n->parent;
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while (1) {
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if (isext(n)) return n;
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if (dkey == getlext(n)->key.d) {
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*fnd = 1;
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return getlext(n);
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}
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n = (dkey < getlext(n)->key.d) ? n->flink : n->blink;
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}
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}
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JRB jrb_find_dbl(JRB n, double dkey)
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{
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int fnd;
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JRB j;
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j = jrb_find_gte_dbl(n, dkey, &fnd);
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if (fnd) return j; else return NULL;
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}
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JRB jrb_find_gte_gen(JRB n, Jval key,int (*fxn)(Jval, Jval), int *fnd)
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{
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int cmp;
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@ -549,59 +445,6 @@ void jrb_delete_node(JRB n)
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}
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}
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void jrb_print_tree(JRB t, int level)
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{
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int i;
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if (ishead(t) && t->parent == t) {
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printf("tree %p is empty\n", t);
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} else if (ishead(t)) {
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printf("Head: %p. Root = %p\n", t, t->parent);
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jrb_print_tree(t->parent, 0);
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} else {
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if (isext(t)) {
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for (i = 0; i < level; i++) putchar(' ');
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printf("Ext node %p: %c,%c: p=%p, k=%s\n",
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t, isred(t)?'R':'B', isleft(t)?'l':'r', t->parent, t->key.s);
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} else {
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jrb_print_tree(t->flink, level+2);
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jrb_print_tree(t->blink, level+2);
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for (i = 0; i < level; i++) putchar(' ');
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printf("Int node %p: %c,%c: l=%p, r=%p, p=%p, lr=(%s,%s)\n",
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t, isred(t)?'R':'B', isleft(t)?'l':'r', t->flink,
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t->blink,
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t->parent, getlext(t)->key.s, getrext(t)->key.s);
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}
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}
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}
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void jrb_iprint_tree(JRB t, int level)
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{
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int i;
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if (ishead(t) && t->parent == t) {
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printf("tree %p is empty\n", t);
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} else if (ishead(t)) {
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printf("Head: %p. Root = %p, < = %p, > = %p\n",
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t, t->parent, t->blink, t->flink);
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jrb_iprint_tree(t->parent, 0);
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} else {
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if (isext(t)) {
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for (i = 0; i < level; i++) putchar(' ');
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printf("Ext node %p: %c,%c: p=%p, <=%p, >=%p k=%d\n",
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t, isred(t)?'R':'B', isleft(t)?'l':'r', t->parent,
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t->blink, t->flink, t->key.i);
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} else {
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jrb_iprint_tree(t->flink, level+2);
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jrb_iprint_tree(t->blink, level+2);
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for (i = 0; i < level; i++) putchar(' ');
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printf("Int node %p: %c,%c: l=%p, r=%p, p=%p, lr=(%d,%d)\n",
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t, isred(t)?'R':'B', isleft(t)?'l':'r', t->flink,
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t->blink,
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t->parent, getlext(t)->key.i, getrext(t)->key.i);
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}
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}
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}
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int jrb_nblack(JRB n)
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{
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int nb;
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@ -650,40 +493,6 @@ Jval jrb_val(JRB n)
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return n->val;
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}
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#if 0
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static JRB jrb_insert_a(JRB nd, Jval key, Jval val)
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{
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return jrb_insert_b(nd->flink, key, val);
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}
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#endif
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JRB jrb_insert_str(JRB tree, char *key, Jval val)
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{
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Jval k;
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int fnd;
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k.s = key;
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return jrb_insert_b(jrb_find_gte_str(tree, key, &fnd), k, val);
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}
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JRB jrb_insert_int(JRB tree, int ikey, Jval val)
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{
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Jval k;
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int fnd;
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k.i = ikey;
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return jrb_insert_b(jrb_find_gte_int(tree, ikey, &fnd), k, val);
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}
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JRB jrb_insert_dbl(JRB tree, double dkey, Jval val)
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{
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Jval k;
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int fnd;
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k.d = dkey;
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return jrb_insert_b(jrb_find_gte_dbl(tree, dkey, &fnd), k, val);
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}
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JRB jrb_insert_gen(JRB tree, Jval key, Jval val,
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int (*func)(Jval, Jval))
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{
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@ -67,17 +67,11 @@ extern JRB make_jrb(void); /* Creates a new rb-tree */
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jrb_insert uses strcmp() as comparison funcion. jrb_inserti uses <>=,
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jrb_insertg uses func() */
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extern JRB jrb_insert_str(JRB tree, char *key, Jval val);
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extern JRB jrb_insert_int(JRB tree, int ikey, Jval val);
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extern JRB jrb_insert_dbl(JRB tree, double dkey, Jval val);
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extern JRB jrb_insert_gen(JRB tree, Jval key, Jval val, int (*func)(Jval,Jval));
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/* returns an external node in t whose value is equal k. Returns NULL if
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there is no such node in the tree */
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extern JRB jrb_find_str(JRB root, char *key);
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extern JRB jrb_find_int(JRB root, int ikey);
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extern JRB jrb_find_dbl(JRB root, double dkey);
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extern JRB jrb_find_gen(JRB root, Jval, int (*func)(Jval, Jval));
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@ -85,9 +79,6 @@ extern JRB jrb_find_gen(JRB root, Jval, int (*func)(Jval, Jval));
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k or whose value is the smallest value greater than k. Sets found to
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1 if the key was found, and 0 otherwise. */
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extern JRB jrb_find_gte_str(JRB root, char *key, int *found);
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extern JRB jrb_find_gte_int(JRB root, int ikey, int *found);
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extern JRB jrb_find_gte_dbl(JRB root, double dkey, int *found);
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extern JRB jrb_find_gte_gen(JRB root, Jval key,
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int (*func)(Jval, Jval), int *found);
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