fgets adds \0 or \n at the end of the input?

Question

I\'ve some doubts about fgets. From what I know, it adds \"\\n\" at the end of the string, and not \"\\0\". So if I write this code:

fgets(buff,2,stdin);
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Answer 1

It must terminate the string, so yes it will always add '\0' at the end. However, fgets might not always add the newline, if it doesn't fit. I recommend this reference page for fgets.