OZ SignedSafeMath.md

176 - OZ SignedSafeMath

OpenZeppelin SignedSafeMath: provides the same mathematical functions as SafeMath but for signed integers

1. myNumber.add(otherNumber): Returns the addition of two signed integers, reverting on overflow. Counterpart to Solidity's + operator.

2. myNumber.sub(otherNumber): Returns the subtraction of two signed integers, reverting on overflow (when the result is negative). Counterpart to Solidity's - operator.

3. myNumber.div(otherNumber): Returns the division of two signed integers, reverting on overflow. The result is rounded towards zero. Counterpart to Solidity's / operator.

4. myNumber.mul(otherNumber): Returns the multiplication of two signed integers, reverting on overflow. Counterpart to Solidity's * operator.

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• Math Functions
• Safe -> Overflow/Underflow
• add & sub & mul & div & mod
• using SignedSafeMath for int256
• Required: solc < 0.8.0

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References

• Youtube Reference

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