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Diffstat (limited to 'libcxx/test/std/containers/associative/tree_remove.pass.cpp')
| -rw-r--r-- | libcxx/test/std/containers/associative/tree_remove.pass.cpp | 1648 |
1 files changed, 1648 insertions, 0 deletions
diff --git a/libcxx/test/std/containers/associative/tree_remove.pass.cpp b/libcxx/test/std/containers/associative/tree_remove.pass.cpp new file mode 100644 index 00000000000..fb14bd929e9 --- /dev/null +++ b/libcxx/test/std/containers/associative/tree_remove.pass.cpp @@ -0,0 +1,1648 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// Not a portable test + +// Returns __tree_next(__z) +// template <class _NodePtr> +// void +// __tree_remove(_NodePtr __root, _NodePtr __z) + +#include <__tree> +#include <cassert> + +struct Node +{ + Node* __left_; + Node* __right_; + Node* __parent_; + bool __is_black_; + + Node() : __left_(), __right_(), __parent_(), __is_black_() {} +}; + +void +test1() +{ + { + // Left + // Case 1 -> Case 2 -> x is red turned to black + Node root; + Node b; + Node c; + Node d; + Node e; + Node y; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &y; + b.__right_ = &d; + b.__is_black_ = true; + + y.__parent_ = &b; + y.__left_ = 0; + y.__right_ = 0; + y.__is_black_ = true; + + d.__parent_ = &b; + d.__left_ = &c; + d.__right_ = &e; + d.__is_black_ = false; + + c.__parent_ = &d; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + e.__parent_ = &d; + e.__left_ = 0; + e.__right_ = 0; + e.__is_black_ = true; + + std::__tree_remove(root.__left_, &y); + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__left_ == &b); + assert(d.__right_ == &e); + assert(d.__is_black_ == true); + + assert(b.__parent_ == &d); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + assert(e.__parent_ == &d); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + } + { + // Right + // Case 1 -> Case 2 -> x is red turned to black + Node root; + Node b; + Node c; + Node d; + Node e; + Node y; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__right_ = &y; + b.__left_ = &d; + b.__is_black_ = true; + + y.__parent_ = &b; + y.__right_ = 0; + y.__left_ = 0; + y.__is_black_ = true; + + d.__parent_ = &b; + d.__right_ = &c; + d.__left_ = &e; + d.__is_black_ = false; + + c.__parent_ = &d; + c.__right_ = 0; + c.__left_ = 0; + c.__is_black_ = true; + + e.__parent_ = &d; + e.__right_ = 0; + e.__left_ = 0; + e.__is_black_ = true; + + std::__tree_remove(root.__left_, &y); + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__right_ == &b); + assert(d.__left_ == &e); + assert(d.__is_black_ == true); + + assert(b.__parent_ == &d); + assert(b.__right_ == 0); + assert(b.__left_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__right_ == 0); + assert(c.__left_ == 0); + assert(c.__is_black_ == false); + + assert(e.__parent_ == &d); + assert(e.__right_ == 0); + assert(e.__left_ == 0); + assert(e.__is_black_ == true); + } + { + // Left + // Case 1 -> Case 3 -> Case 4 + Node root; + Node b; + Node c; + Node d; + Node e; + Node f; + Node y; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &y; + b.__right_ = &d; + b.__is_black_ = true; + + y.__parent_ = &b; + y.__left_ = 0; + y.__right_ = 0; + y.__is_black_ = true; + + d.__parent_ = &b; + d.__left_ = &c; + d.__right_ = &e; + d.__is_black_ = false; + + c.__parent_ = &d; + c.__left_ = &f; + c.__right_ = 0; + c.__is_black_ = true; + + e.__parent_ = &d; + e.__left_ = 0; + e.__right_ = 0; + e.__is_black_ = true; + + f.__parent_ = &c; + f.__left_ = 0; + f.__right_ = 0; + f.__is_black_ = false; + + std::__tree_remove(root.__left_, &y); + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__left_ == &f); + assert(d.__right_ == &e); + assert(d.__is_black_ == true); + + assert(f.__parent_ == &d); + assert(f.__left_ == &b); + assert(f.__right_ == &c); + assert(f.__is_black_ == false); + + assert(b.__parent_ == &f); + assert(b.__left_ == 0); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &f); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + assert(e.__parent_ == &d); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + } + { + // Right + // Case 1 -> Case 3 -> Case 4 + Node root; + Node b; + Node c; + Node d; + Node e; + Node f; + Node y; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__right_ = &y; + b.__left_ = &d; + b.__is_black_ = true; + + y.__parent_ = &b; + y.__right_ = 0; + y.__left_ = 0; + y.__is_black_ = true; + + d.__parent_ = &b; + d.__right_ = &c; + d.__left_ = &e; + d.__is_black_ = false; + + c.__parent_ = &d; + c.__right_ = &f; + c.__left_ = 0; + c.__is_black_ = true; + + e.__parent_ = &d; + e.__right_ = 0; + e.__left_ = 0; + e.__is_black_ = true; + + f.__parent_ = &c; + f.__right_ = 0; + f.__left_ = 0; + f.__is_black_ = false; + + std::__tree_remove(root.__left_, &y); + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__right_ == &f); + assert(d.__left_ == &e); + assert(d.__is_black_ == true); + + assert(f.__parent_ == &d); + assert(f.__right_ == &b); + assert(f.__left_ == &c); + assert(f.__is_black_ == false); + + assert(b.__parent_ == &f); + assert(b.__right_ == 0); + assert(b.__left_ == 0); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &f); + assert(c.__right_ == 0); + assert(c.__left_ == 0); + assert(c.__is_black_ == true); + + assert(e.__parent_ == &d); + assert(e.__right_ == 0); + assert(e.__left_ == 0); + assert(e.__is_black_ == true); + } +} + +void +test2() +{ + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &c); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &a); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &c); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &a); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &c); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &a); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &a); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &root); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &c); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &a); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &a); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &root); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &a); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &root); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &a); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &root); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } + { + Node root; + Node a; + Node b; + Node c; + + root.__left_ = &b; + + b.__parent_ = &root; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = false; + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == 0); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + } +} + +void +test3() +{ + Node root; + Node a; + Node b; + Node c; + Node d; + Node e; + Node f; + Node g; + Node h; + + root.__left_ = &e; + + e.__parent_ = &root; + e.__left_ = &c; + e.__right_ = &g; + e.__is_black_ = true; + + c.__parent_ = &e; + c.__left_ = &b; + c.__right_ = &d; + c.__is_black_ = false; + + g.__parent_ = &e; + g.__left_ = &f; + g.__right_ = &h; + g.__is_black_ = false; + + b.__parent_ = &c; + b.__left_ = &a; + b.__right_ = 0; + b.__is_black_ = true; + + d.__parent_ = &c; + d.__left_ = 0; + d.__right_ = 0; + d.__is_black_ = true; + + f.__parent_ = &g; + f.__left_ = 0; + f.__right_ = 0; + f.__is_black_ = true; + + h.__parent_ = &g; + h.__left_ = 0; + h.__right_ = 0; + h.__is_black_ = true; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = false; + + assert(std::__tree_invariant(root.__left_)); + + std::__tree_remove(root.__left_, &h); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &e); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(e.__parent_ == &root); + assert(e.__left_ == &c); + assert(e.__right_ == &g); + assert(e.__is_black_ == true); + + assert(c.__parent_ == &e); + assert(c.__left_ == &b); + assert(c.__right_ == &d); + assert(c.__is_black_ == false); + + assert(g.__parent_ == &e); + assert(g.__left_ == &f); + assert(g.__right_ == 0); + assert(g.__is_black_ == true); + + assert(b.__parent_ == &c); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(d.__parent_ == &c); + assert(d.__left_ == 0); + assert(d.__right_ == 0); + assert(d.__is_black_ == true); + + assert(f.__parent_ == &g); + assert(f.__left_ == 0); + assert(f.__right_ == 0); + assert(f.__is_black_ == false); + + std::__tree_remove(root.__left_, &g); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &e); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(e.__parent_ == &root); + assert(e.__left_ == &c); + assert(e.__right_ == &f); + assert(e.__is_black_ == true); + + assert(c.__parent_ == &e); + assert(c.__left_ == &b); + assert(c.__right_ == &d); + assert(c.__is_black_ == false); + + assert(b.__parent_ == &c); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(d.__parent_ == &c); + assert(d.__left_ == 0); + assert(d.__right_ == 0); + assert(d.__is_black_ == true); + + assert(f.__parent_ == &e); + assert(f.__left_ == 0); + assert(f.__right_ == 0); + assert(f.__is_black_ == true); + + std::__tree_remove(root.__left_, &f); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &b); + assert(c.__right_ == &e); + assert(c.__is_black_ == true); + + assert(b.__parent_ == &c); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(e.__parent_ == &c); + assert(e.__left_ == &d); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(d.__parent_ == &e); + assert(d.__left_ == 0); + assert(d.__right_ == 0); + assert(d.__is_black_ == false); + + std::__tree_remove(root.__left_, &e); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &c); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(c.__parent_ == &root); + assert(c.__left_ == &b); + assert(c.__right_ == &d); + assert(c.__is_black_ == true); + + assert(b.__parent_ == &c); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + assert(d.__parent_ == &c); + assert(d.__left_ == 0); + assert(d.__right_ == 0); + assert(d.__is_black_ == true); + + std::__tree_remove(root.__left_, &d); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &b); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(b.__parent_ == &root); + assert(b.__left_ == &a); + assert(b.__right_ == 0); + assert(b.__is_black_ == true); + + assert(a.__parent_ == &b); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == false); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &a); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(a.__parent_ == &root); + assert(a.__left_ == 0); + assert(a.__right_ == 0); + assert(a.__is_black_ == true); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); +} + +void +test4() +{ + Node root; + Node a; + Node b; + Node c; + Node d; + Node e; + Node f; + Node g; + Node h; + + root.__left_ = &d; + + d.__parent_ = &root; + d.__left_ = &b; + d.__right_ = &f; + d.__is_black_ = true; + + b.__parent_ = &d; + b.__left_ = &a; + b.__right_ = &c; + b.__is_black_ = false; + + f.__parent_ = &d; + f.__left_ = &e; + f.__right_ = &g; + f.__is_black_ = false; + + a.__parent_ = &b; + a.__left_ = 0; + a.__right_ = 0; + a.__is_black_ = true; + + c.__parent_ = &b; + c.__left_ = 0; + c.__right_ = 0; + c.__is_black_ = true; + + e.__parent_ = &f; + e.__left_ = 0; + e.__right_ = 0; + e.__is_black_ = true; + + g.__parent_ = &f; + g.__left_ = 0; + g.__right_ = &h; + g.__is_black_ = true; + + h.__parent_ = &g; + h.__left_ = 0; + h.__right_ = 0; + h.__is_black_ = false; + + assert(std::__tree_invariant(root.__left_)); + + std::__tree_remove(root.__left_, &a); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__left_ == &b); + assert(d.__right_ == &f); + assert(d.__is_black_ == true); + + assert(b.__parent_ == &d); + assert(b.__left_ == 0); + assert(b.__right_ == &c); + assert(b.__is_black_ == true); + + assert(f.__parent_ == &d); + assert(f.__left_ == &e); + assert(f.__right_ == &g); + assert(f.__is_black_ == false); + + assert(c.__parent_ == &b); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == false); + + assert(e.__parent_ == &f); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + + assert(g.__parent_ == &f); + assert(g.__left_ == 0); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == false); + + std::__tree_remove(root.__left_, &b); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &d); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(d.__parent_ == &root); + assert(d.__left_ == &c); + assert(d.__right_ == &f); + assert(d.__is_black_ == true); + + assert(c.__parent_ == &d); + assert(c.__left_ == 0); + assert(c.__right_ == 0); + assert(c.__is_black_ == true); + + assert(f.__parent_ == &d); + assert(f.__left_ == &e); + assert(f.__right_ == &g); + assert(f.__is_black_ == false); + + assert(e.__parent_ == &f); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + + assert(g.__parent_ == &f); + assert(g.__left_ == 0); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == false); + + std::__tree_remove(root.__left_, &c); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &f); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(f.__parent_ == &root); + assert(f.__left_ == &d); + assert(f.__right_ == &g); + assert(f.__is_black_ == true); + + assert(d.__parent_ == &f); + assert(d.__left_ == 0); + assert(d.__right_ == &e); + assert(d.__is_black_ == true); + + assert(g.__parent_ == &f); + assert(g.__left_ == 0); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(e.__parent_ == &d); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == false); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == false); + + std::__tree_remove(root.__left_, &d); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &f); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(f.__parent_ == &root); + assert(f.__left_ == &e); + assert(f.__right_ == &g); + assert(f.__is_black_ == true); + + assert(e.__parent_ == &f); + assert(e.__left_ == 0); + assert(e.__right_ == 0); + assert(e.__is_black_ == true); + + assert(g.__parent_ == &f); + assert(g.__left_ == 0); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == false); + + std::__tree_remove(root.__left_, &e); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &g); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(g.__parent_ == &root); + assert(g.__left_ == &f); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(f.__parent_ == &g); + assert(f.__left_ == 0); + assert(f.__right_ == 0); + assert(f.__is_black_ == true); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == true); + + std::__tree_remove(root.__left_, &f); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &g); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(g.__parent_ == &root); + assert(g.__left_ == 0); + assert(g.__right_ == &h); + assert(g.__is_black_ == true); + + assert(h.__parent_ == &g); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == false); + + std::__tree_remove(root.__left_, &g); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == &h); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); + + assert(h.__parent_ == &root); + assert(h.__left_ == 0); + assert(h.__right_ == 0); + assert(h.__is_black_ == true); + + std::__tree_remove(root.__left_, &h); + + assert(std::__tree_invariant(root.__left_)); + + assert(root.__parent_ == 0); + assert(root.__left_ == 0); + assert(root.__right_ == 0); + assert(root.__is_black_ == false); +} + +int main() +{ + test1(); + test2(); + test3(); + test4(); +} |
