Function LooseMemeq

fuzz/libfuzzer/FuzzerLoop.cpp:594–601

Compare two arrays, but not all bytes if the arrays are large.

// Compare two arrays, but not all bytes if the arrays are large.
static bool LooseMemeq(const uint8_t *A, const uint8_t *B, size_t Size) {
  const size_t Limit = 64;
  if (Size <= 64)
    return !memcmp(A, B, Size);
  // Compare first and last Limit/2 bytes.
  return !memcmp(A, B, Limit / 2) &&
         !memcmp(A + Size - Limit / 2, B + Size - Limit / 2, Limit / 2);
}

// This method is not inlined because it would cause a test to fail where it
// is part of the stack unwinding. See D97975 for details.