Method wrapping_sub

crates/cust/src/memory/pointer.rs:321–326

Calculates the offset from a pointer using wrapping arithmetic. (convenience for `.wrapping_offset((count as isize).wrapping_sub())`) `count` is in units of T; e.g. a `count` of 3 represents a pointer offset of `3 * size_of:: ()` bytes. # Safety The resulting pointer does not need to be in bounds, but it is potentially hazardous to dereference (which requires `unsafe`). Always use `.sub(coun

(self, count: usize)

    /// }
    /// ```
    pub fn wrapping_sub(self, count: usize) -> Self
    where
        T: Sized,
    {
        self.wrapping_offset((count as isize).wrapping_neg())
    }

    /// Casts this device pointer to another type.
    pub fn cast<U: DeviceCopy>(self) -> DevicePointer<U> {