how to get timestamp in c

Question

I want to get timestamp for my log in c. i have written a function to get timestamp. But when i return the variable i m getting different value.

My code:

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Answer 1

The string you're returning is an automatic variable. When you exit the function accessing this variable is impossible. According to the specs it's undefined behavior. Use malloc to allocate the string and you'll be fine. Just don't forget to free it afterwards.