Question: void heapfree(void *pointer) I have this function. Now I want to free the memory without using builtin free() function in c program. Before this function,

void heapfree(void *pointer) I have this function. Now I want to free the memory without using builtin free() function in c program. Before this function, I allocated memory of 4096 bytes.If the user frees two blocks of memory that are adjacent, my program should coalesce them. so how can I free and coalesce memory without using builtin free() function and using this function in c program.

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