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authorDavid Robillard <d@drobilla.net>2020-12-31 15:34:15 +0100
committerDavid Robillard <d@drobilla.net>2020-12-31 15:34:15 +0100
commited9a6e98b8e4e010117e1228333569aa31c51d9e (patch)
tree3c333f1c7ce2109222d06aa026b939e379e55b5d /zix/tree_debug.h
parentde27dcfe0bb72ef1ec937c4aaee26eef6ff7918e (diff)
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Separate source from headers
Diffstat (limited to 'zix/tree_debug.h')
-rw-r--r--zix/tree_debug.h175
1 files changed, 0 insertions, 175 deletions
diff --git a/zix/tree_debug.h b/zix/tree_debug.h
deleted file mode 100644
index 68e37b6..0000000
--- a/zix/tree_debug.h
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- Copyright 2011 David Robillard <http://drobilla.net>
-
- Permission to use, copy, modify, and/or distribute this software for any
- purpose with or without fee is hereby granted, provided that the above
- copyright notice and this permission notice appear in all copies.
-
- THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-#ifndef ZIX_TREE_DEBUG_H
-#define ZIX_TREE_DEBUG_H
-
-#include <inttypes.h>
-
-#ifdef ZIX_TREE_DUMP
-static void
-zix_tree_print(ZixTreeNode* node, int level)
-{
- if (node) {
- if (!node->parent) {
- printf("{{{\n");
- }
-
- zix_tree_print(node->right, level + 1);
- for (int i = 0; i < level; i++) {
- printf(" ");
- }
-
- printf("%ld.%d\n", (intptr_t)node->data, node->balance);
- zix_tree_print(node->left, level + 1);
- if (!node->parent) {
- printf("}}}\n");
- }
- }
-}
-#endif
-
-#ifdef ZIX_TREE_HYPER_VERIFY
-static size_t
-height(ZixTreeNode* n)
-{
- if (!n) {
- return 0;
- } else {
- return 1 + MAX(height(n->left), height(n->right));
- }
-}
-#endif
-
-#if defined(ZIX_TREE_VERIFY) || !defined(NDEBUG)
-static bool
-verify_balance(ZixTreeNode* n)
-{
- if (!n) {
- return true;
- }
-
- if (n->balance < -2 || n->balance > 2) {
- fprintf(stderr,
- "Balance out of range : %ld (balance %d)\n",
- (intptr_t)n->data,
- n->balance);
- return false;
- }
-
- if (n->balance < 0 && !n->left) {
- fprintf(stderr,
- "Bad balance : %ld (balance %d) has no left child\n",
- (intptr_t)n->data,
- n->balance);
- return false;
- }
-
- if (n->balance > 0 && !n->right) {
- fprintf(stderr,
- "Bad balance : %ld (balance %d) has no right child\n",
- (intptr_t)n->data,
- n->balance);
- return false;
- }
-
- if (n->balance != 0 && !n->left && !n->right) {
- fprintf(stderr,
- "Bad balance : %ld (balance %d) has no children\n",
- (intptr_t)n->data,
- n->balance);
- return false;
- }
-
-# ifdef ZIX_TREE_HYPER_VERIFY
- const intptr_t left_height = (intptr_t)height(n->left);
- const intptr_t right_height = (intptr_t)height(n->right);
- if (n->balance != right_height - left_height) {
- fprintf(stderr,
- "Bad balance at %ld: h_r (%" PRIdPTR ")"
- "- l_h (%" PRIdPTR ") != %d\n",
- (intptr_t)n->data,
- right_height,
- left_height,
- n->balance);
- assert(false);
- return false;
- }
-# endif
-
- return true;
-}
-#endif
-
-#ifdef ZIX_TREE_VERIFY
-static bool
-verify(ZixTree* t, ZixTreeNode* n)
-{
- if (!n) {
- return true;
- }
-
- if (n->parent) {
- if ((n->parent->left != n) && (n->parent->right != n)) {
- fprintf(stderr, "Corrupt child/parent pointers\n");
- return false;
- }
- }
-
- if (n->left) {
- if (t->cmp(n->left->data, n->data, t->cmp_data) > 0) {
- fprintf(
- stderr, "Bad order: %" PRIdPTR " with left child\n", (intptr_t)n->data);
- fprintf(stderr, "%p ? %p\n", (void*)n, (void*)n->left);
- fprintf(stderr,
- "%" PRIdPTR " ? %" PRIdPTR "\n",
- (intptr_t)n->data,
- (intptr_t)n->left->data);
- return false;
- }
-
- if (!verify(t, n->left)) {
- return false;
- }
- }
-
- if (n->right) {
- if (t->cmp(n->right->data, n->data, t->cmp_data) < 0) {
- fprintf(stderr,
- "Bad order: %" PRIdPTR " with right child\n",
- (intptr_t)n->data);
- return false;
- }
-
- if (!verify(t, n->right)) {
- return false;
- }
- }
-
- if (!verify_balance(n)) {
- return false;
- }
-
- if (n->balance <= -2 || n->balance >= 2) {
- fprintf(stderr, "Imbalance: %p (balance %d)\n", (void*)n, n->balance);
- return false;
- }
-
- return true;
-}
-#endif
-
-#endif // ZIX_TREE_DEBUG_H