core/vm: fix typos and use ExpGas for EXP (#18400)

This replaces the GasSlowStep constant with params.ExpGas.
Both constants have value 10.
This commit is contained in:
Nalin Bhardwaj
2019-01-24 16:44:02 +05:30
committed by Felix Lange
parent fa34429a26
commit b8f9b3779f
2 changed files with 3 additions and 3 deletions

View File

@ -22,7 +22,7 @@ import (
"github.com/ethereum/go-ethereum/params"
)
// memoryGasCosts calculates the quadratic gas for memory expansion. It does so
// memoryGasCost calculates the quadratic gas for memory expansion. It does so
// only for the memory region that is expanded, not the total memory.
func memoryGasCost(mem *Memory, newMemSize uint64) (uint64, error) {
@ -382,7 +382,7 @@ func gasExp(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
gas = expByteLen * gt.ExpByte // no overflow check required. Max is 256 * ExpByte gas
overflow bool
)
if gas, overflow = math.SafeAdd(gas, GasSlowStep); overflow {
if gas, overflow = math.SafeAdd(gas, params.ExpGas); overflow {
return 0, errGasUintOverflow
}
return gas, nil