Multiple choice

Which of the following are not system calls?

  1. chmod

  2. getc

  3. iseek

  4. open
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The getc() function is functionally similar to fgetc(),except that it is implemented as a macro. It runs faster than fgetc(), but it takes more space per invocation and it's name cannot be passed as an argument to a function call. The getc is not a system call.

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