---
source: tests/output.rs
expression: "get_stdout(&[\"-e\", item])"
---
rand_core                             Trait rand_core::RngCore                             rusty-man

EXAMPLES
      A simple example, obviously not generating very *random* output:

      #![allow(dead_code)]
      use rand_core::{RngCore, Error, impls};
      
      struct CountingRng(u64);
      
      impl RngCore for CountingRng {
          fn next_u32(&mut self) -> u32 {
              self.next_u64() as u32
          }
      
          fn next_u64(&mut self) -> u64 {
              self.0 += 1;
              self.0
          }
      
          fn fill_bytes(&mut self, dest: &mut [u8]) {
              impls::fill_bytes_via_next(self, dest)
          }
      
          fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
              Ok(self.fill_bytes(dest))
          }
      }