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- SafeMath
- =============================================
- Provides functions of mathematical operations with safety checks.
- assert(bool assertion) internal
- """""""""""""""""""""""""""""""""""""""""""""""""
- Throws an error if the passed result is false. Used in this contract by checking mathematical expressions.
- mul(uint256 a, uint256 b) internal returns (uint256)
- """""""""""""""""""""""""""""""""""""""""""""""""
- Multiplies two unisgned integers. Asserts that dividing the product by the non-zero multiplicand results in the multiplier.
- sub(uint256 a, uint256 b) internal returns (uint256)
- """""""""""""""""""""""""""""""""""""""""""""""""
- Checks that b is not greater than a before subtracting.
- add(uint256 a, uint256 b) internal returns (uint256)
- """""""""""""""""""""""""""""""""""""""""""""""""
- Checks that the result is greater than both a and b.
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