Function dallocx

pub unsafe extern "C" fn dallocx(ptr: *mut c_void, flags: i32)

Deallocates previously-allocated memory region referenced by ptr.

This makes the space available for future allocations.

Safety

The behavior is undefined if:

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