Function data_model::volatile_memory::calc_offset

source ·

pub fn calc_offset(base: usize, offset: usize) -> VolatileMemoryResult<usize>

Expand description

Convenience function for computing base + offset which returns Err(VolatileMemoryError::Overflow) instead of panicking in the case base + offset exceeds u64::MAX.

Examples

  let mem_end = calc_offset(offset, count)?;
  if mem_end > 100 {
      return Err(VolatileMemoryError::OutOfBounds{addr: mem_end});
  }