fix: pairing cost formula (#659)

* fix pairing cost formula bug * chore: fmt --------- Co-authored-by: Rohit Narurkar <rohit.narurkar@protonmail.com>
bluealloy · Aug 29, 2023 · 0fa4504 · 0fa4504
1 parent c14f8a9
commit 0fa4504
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/crates/precompile/src/bn128.rs b/crates/precompile/src/bn128.rs
@@ -165,8 +165,7 @@ fn run_pair(
     pair_base_cost: u64,
     gas_limit: u64,
 ) -> PrecompileResult {
-    let gas_used =
-        pair_per_point_cost * input.len() as u64 / PAIR_ELEMENT_LEN as u64 + pair_base_cost;
+    let gas_used = (input.len() / PAIR_ELEMENT_LEN) as u64 * pair_per_point_cost + pair_base_cost;
     if gas_used > gas_limit {
         return Err(Error::OutOfGas);
     }