1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2// See https://llvm.org/LICENSE.txt for license information.
3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4
5// Test that we can find the minimal item in the corpus (3 bytes: "FUZ").
6#include <cstddef>
7#include <cstdint>
8#include <cstdio>
9#include <cstdlib>
10#include <cstring>
11
12static volatile int Sink;
13
14void Foo() {
15 Sink++;
16}
17
18extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
19 int8_t Ids[256];
20 memset(Ids, -1, sizeof(Ids));
21 for (size_t i = 0; i < Size; i++)
22 if (Ids[Data[i]] == -1)
23 Ids[Data[i]] = i;
24 int F = Ids[(unsigned char)'F'];
25 int U = Ids[(unsigned char)'U'];
26 int Z = Ids[(unsigned char)'Z'];
27 if (F >= 0 && U > F && Z > U) {
28 Foo();
29 }
30 return 0;
31}
32
33