test/fuzzer/ImplicitSignedIntegerTruncationOrSignChangeTest.cpp


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// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.

// Test for implicit-signed-integer-truncation-or-sign-change.
#include <assert.h>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <cstdlib>
#include <iostream>

static volatile int8_t Sink;
static volatile uint32_t Storage = (uint32_t)-1;

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  assert(Data);
  if (Size > 0 && Data[0] == 'H') {
    Sink = 1;
    if (Size > 1 && Data[1] == 'i') {
    Sink = 2;
      if (Size > 2 && Data[2] == '!') {
        Sink = Storage;  // 'conversion'.
      }
    }
  }
  return 0;
}