What is the concept of 'free' in C programming?
An example of an AI chatbot conversation about the 'free' function in C programming.
Can you explain what the 'free' function does in C programming?
The 'free' function in C is used to deallocate memory that was previously allocated using functions like 'malloc' or 'calloc'.
Why is it important to use 'free' after allocating memory?
Using 'free' is crucial to prevent memory leaks, which can lead to increased memory usage and potential program crashes.
What happens if I forget to use 'free'?
If you forget to use 'free', the allocated memory remains occupied until the program terminates, which can exhaust system memory.
Can I use 'free' on a pointer that hasn't been allocated memory?
No, using 'free' on a pointer that hasn't been allocated memory can lead to undefined behavior and potentially crash your program.
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