Challenge Your Knowledge of Character Classification Functions in C
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Questions and Answers

Which function returns a true value if c is a digit and false otherwise?

  • isxdigit
  • isalnum
  • isdigit (correct)
  • isalpha

    • Which function returns a true value if c is a letter and false otherwise?

  • isalpha (correct)
  • isalnum
  • isxdigit
  • isdigit

    • Which function returns a true value if c is a whitespace character and false otherwise?

  • islower
  • ispunct
  • isspace (correct)
  • isupper

    • Which function returns a true value if c is a hexadecimal digit character and false otherwise?

    <p>isxdigit</p> Signup and view all the answers

    Which function returns a true value if c is a lowercase letter and false otherwise?

    <p>islower</p> Signup and view all the answers

    Which function returns a true value if c is a printing character other than a space, a digit, or a letter and false otherwise?

    <p>ispunct</p> Signup and view all the answers

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