Gas Optimizations

[code423n4]

Gas Optimizations

• use local variable in the require instead of using a storage variable old code:

  initialExchangeRateMantissa = initialExchangeRateMantissa_;
  require(initialExchangeRateMantissa > 0, "initial exchange rate must be greater than zero.");

  new code:

  initialExchangeRateMantissa = initialExchangeRateMantissa_;
  require(initialExchangeRateMantissa_ > 0, "initial exchange rate must be greater than zero.");