Solana Safe Math

 use solana_safe_math::{SafeMath};
 
 fn process_init_escrow(
   accounts: &[AccountInfo],
   amount: u64,
   program_id: &Pubkey
 ) -> ProgramResult {
   let val = 10_u64;
  
   val.safe_add(amount)?;
   val.safe_sub(amount)?;
   val.safe_mul(amount)?;
   val.safe_div(amount)?;
   val.safe_pow(8_u32)?;
 }

Works with u128, u64, u32, u16 and u8