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C Language > Learn C Language > What are 'malloc' and 'free' used for?
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What are 'malloc' and 'free' used for?

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'malloc' allocates memory; 'free' releases it.
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The malloc function will request a block of memory from the heap. If the request is granted, the operating system will reserve the requested amount of memory. When the amount of memory is not needed anymore, you must return it to the operating system by calling the function free.
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