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https://github.com/jart/cosmopolitan.git
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c4c812c154
We now have a C++ red-black tree implementation that implements standard template library compatible APIs while compiling 10x faster than libcxx. It's not as beautiful as the red-black tree implementation in Plinko but this will get the job done and the test proves it upholds all invariants This change also restores CheckForMemoryLeaks() support and fixes a real actual bug I discovered with Doug Lea's dlmalloc_inspect_all() function.
133 lines
3 KiB
C++
133 lines
3 KiB
C++
// -*- mode:c++; indent-tabs-mode:nil; c-basic-offset:4; coding:utf-8 -*-
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// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
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//
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// Copyright 2024 Justine Alexandra Roberts Tunney
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//
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// Permission to use, copy, modify, and/or distribute this software for
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// any purpose with or without fee is hereby granted, provided that the
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// above copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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#include "ctl/optional.h"
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#include "libc/mem/leaks.h"
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#include "ctl/string.h"
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// #include <optional>
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// #include <string>
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// #define ctl std
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static int g = 0;
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int
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main()
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{
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{
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ctl::optional<int> x;
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if (x)
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return 1;
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if (x.has_value())
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return 2;
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}
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{
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ctl::optional<int> x(42);
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if (!x)
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return 3;
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if (!x.has_value())
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return 4;
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if (x.value() != 42)
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return 5;
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}
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{
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ctl::optional<ctl::string> x("hello");
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ctl::optional<ctl::string> y(x);
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if (!y)
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return 6;
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if (!y.has_value())
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return 7;
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if (y.value() != "hello")
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return 8;
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}
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{
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ctl::optional<ctl::string> x("world");
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ctl::optional<ctl::string> y(ctl::move(x));
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if (!y)
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return 9;
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if (!y.has_value())
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return 10;
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if (y.value() != "world")
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return 11;
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}
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{
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ctl::optional<int> x(42);
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ctl::optional<int> y;
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y = x;
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if (!y)
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return 13;
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if (!y.has_value())
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return 14;
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if (y.value() != 42)
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return 15;
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}
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{
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ctl::optional<ctl::string> x("hello");
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ctl::optional<ctl::string> y;
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y = ctl::move(x);
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if (!y)
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return 16;
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if (!y.has_value())
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return 17;
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if (y.value() != "hello")
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return 18;
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}
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{
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ctl::optional<int> x(42);
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x.reset();
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if (x)
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return 20;
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if (x.has_value())
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return 21;
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}
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{
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ctl::optional<ctl::string> x;
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x.emplace("hello");
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if (!x)
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return 22;
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if (!x.has_value())
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return 23;
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if (x.value() != "hello")
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return 24;
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}
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{
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struct A
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{
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int* p = &g;
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A()
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{
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++*p;
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}
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};
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ctl::optional<A> x;
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if (g != 0)
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return 25;
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}
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CheckForMemoryLeaks();
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}
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