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24 lines
845 B
24 lines
845 B
8 years ago
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SafeMath
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=============================================
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Provides functions of mathematical operations with safety checks.
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assert(bool assertion) internal
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"""""""""""""""""""""""""""""""""""""""""""""""""
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Throws an error if the passed result is false. Used in this contract by checking mathematical expressions.
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safeMul(uint a, uint b) internal returns (uint)
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"""""""""""""""""""""""""""""""""""""""""""""""""
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Multiplies two unisgned integers. Asserts that dividing the product by the non-zero multiplicand results in the multiplier.
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safeSub(uint a, unit b) internal returns (uint)
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"""""""""""""""""""""""""""""""""""""""""""""""""
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Checks that b is not greater than a before subtracting.
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safeAdd(unit a, unit b) internal returns (uint)
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"""""""""""""""""""""""""""""""""""""""""""""""""
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Checks that the result is greater than both a and b.
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