// internal base func for all slice() functions
func (s *slice) slice(start, stop int, elemsize uintptr) slice {
if start >= s.cap_ || start < 0 || stop > s.cap_ || stop < 0 {
panic("cuda4/safe: slice index out of bounds")
}
if start > stop {
panic("cuda4/safe: inverted slice range")
}
return slice{cu.DevicePtr(uintptr(s.ptr_) + uintptr(start)*elemsize), stop - start, s.cap_ - start}
}
// Manually set the pointer, length and capacity.
// Side-steps the security mechanisms, use with caution.
func (s *slice) UnsafeSet(pointer unsafe.Pointer, length, capacity int) {
s.ptr_ = cu.DevicePtr(uintptr(pointer))
s.len_ = length
s.cap_ = capacity
}