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authorVincent Ambo <mail@tazj.in>2020-07-15T07·20+0100
committerVincent Ambo <mail@tazj.in>2020-07-15T07·23+0100
commit1213b086a1015a662ab7ebd658f784534fd3116a (patch)
treed3bc8f3b7f40b8b60f0ef6fbd649cf765f4fdfb6 /third_party/immer/extra/fuzzer/set.cpp
parent1390827b9ea1e04bc9863e48930bfd16db3b716e (diff)
parent7f19d641647ac4ef313ed88d6b5c140983ce5436 (diff)
merge(3p/immer): Subtree merge at 'ad3e3556d' as 'third_party/immer' r/1299
Change-Id: I9636a41ad44b4218293833fd3e9456d9b07c731b
Diffstat (limited to 'third_party/immer/extra/fuzzer/set.cpp')
-rw-r--r--third_party/immer/extra/fuzzer/set.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/immer/extra/fuzzer/set.cpp b/third_party/immer/extra/fuzzer/set.cpp
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+++ b/third_party/immer/extra/fuzzer/set.cpp
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+//
+// immer: immutable data structures for C++
+// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
+//
+// This software is distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
+//
+
+#include "fuzzer_input.hpp"
+
+#include <immer/set.hpp>
+
+#include <array>
+
+extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t* data,
+                                      std::size_t size)
+{
+    constexpr auto var_count = 4;
+
+    using set_t = immer::set<int>;
+
+    auto vars = std::array<set_t, var_count>{};
+
+    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
+
+    return fuzzer_input{data, size}.run([&](auto& in) {
+        enum ops
+        {
+            op_insert,
+            op_erase,
+            op_insert_move,
+            op_erase_move,
+            op_iterate
+        };
+        auto src = read<char>(in, is_valid_var);
+        auto dst = read<char>(in, is_valid_var);
+        switch (read<char>(in)) {
+        case op_insert: {
+            auto value = read<size_t>(in);
+            vars[dst]  = vars[src].insert(value);
+            break;
+        }
+        case op_erase: {
+            auto value = read<size_t>(in);
+            vars[dst]  = vars[src].erase(value);
+            break;
+        }
+        case op_insert_move: {
+            auto value = read<size_t>(in);
+            vars[dst]  = std::move(vars[src]).insert(value);
+            break;
+        }
+        case op_erase_move: {
+            auto value = read<size_t>(in);
+            vars[dst]  = vars[src].erase(value);
+            break;
+        }
+        case op_iterate: {
+            auto srcv = vars[src];
+            for (const auto& v : srcv) {
+                vars[dst] = vars[dst].insert(v);
+            }
+            break;
+        }
+        default:
+            break;
+        };
+        return true;
+    });
+}