Add Uint128::checked_pow

CosmWasm · Sep 11, 2021 · 6e14d03 · 6e14d03
1 parent 4e94d12
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to
   the contract call was executed in.
 - cosmwasm-std: New getters `Decimal{,256}::atomics()` and
   `Decimal{,256}::decimal_places()`.
+- cosmwasm-std: New `Uint128::checked_pow`.
 
 ### Changed
 

diff --git a/packages/std/src/math/uint128.rs b/packages/std/src/math/uint128.rs
@@ -76,6 +76,13 @@ impl Uint128 {
             .ok_or_else(|| OverflowError::new(OverflowOperation::Mul, self, other))
     }
 
+    pub fn checked_pow(self, exp: u32) -> Result<Self, OverflowError> {
+        self.0
+            .checked_pow(exp)
+            .map(Self)
+            .ok_or_else(|| OverflowError::new(OverflowOperation::Pow, self, exp))
+    }
+
     pub fn checked_div(self, other: Self) -> Result<Self, DivideByZeroError> {
         self.0
             .checked_div(other.0)