read method returns _____ when an underlying buffer is empty (assume that file is opened with default flags)

All Questions › Category: Embedded System › read method returns _____ when an underlying buffer is empty (assume that file is opened with default flags)
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Anonymous asked 3 years ago
Options:
  1. EFAULT
  2. -EINVAL
  3. 0
  4. None of the above
1 Answers
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subha answered 2 years ago

none of the above