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free is used to return allocated memory to the system.

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	Library: sdlib.h
	Prototype: void free(void *s);
	Syntax: char *StrPtr;
		 StrPtr = (char *) malloc(100);
 free(StrPtr);

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Notes:

• If you use malloc inside a loop and dont free the memory, you run the risk of the program crashing.

• If a program ends without issuing a free, any allocated memory is returned to the system.

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Examples:

example program.

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See Also:

malloc function.

new C++ replacement for malloc.

delete C++ replacement for free.

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Martin Leslie