handle get_base_reward when no previous balance

ethereum · Mar 5, 2019 · 02e8e89 · 02e8e89
1 parent 0fdfbc4
commit 02e8e89
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
@@ -2171,6 +2171,9 @@ First, we define some additional helpers:
 
 ```python
 def get_base_reward(state: BeaconState, index: ValidatorIndex) -> Gwei:
+    if get_previous_total_balance(state) == 0:
+        return 0
+
     adjusted_quotient = integer_squareroot(get_previous_total_balance(state)) // BASE_REWARD_QUOTIENT
     return get_effective_balance(state, index) // adjusted_quotient // 5
 ```