Function free_sized 

pub unsafe extern "C" fn free_sized(ptr: *mut c_void, size: size_t)

Deallocates previously-allocated memory region referenced by ptr.

This makes the space available for future allocations.

If ptr is null, no action occurs.

Safety

The behavior is undefined if:

• ptr does not match a pointer earlier returned by the memory allocation functions of this crate, or
• the memory region referenced by ptr has been deallocated, or
• ptr is returned by aligned_alloc.