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author | Leonid <logvinov.leon@gmail.com> | 2018-01-19 20:43:32 +0800 |
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committer | GitHub <noreply@github.com> | 2018-01-19 20:43:32 +0800 |
commit | e1af25c8a6fa96c665d63fff2033d7611b023db2 (patch) | |
tree | 5769ca73d50c497e46e6c6c927700ae0fa00bec9 /packages/deployer/test/fixtures/contracts/base/SafeMath.sol | |
parent | 9ccf63b44afe1ae6ccc2b9298ee35697d6be9e30 (diff) | |
parent | 6091f818da7cddcb4a22a573f7726ba9b76b398e (diff) | |
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Merge pull request #323 from 0xProject/feature/separate-deployer
Move deployer to a separate package
Diffstat (limited to 'packages/deployer/test/fixtures/contracts/base/SafeMath.sol')
-rw-r--r-- | packages/deployer/test/fixtures/contracts/base/SafeMath.sol | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/packages/deployer/test/fixtures/contracts/base/SafeMath.sol b/packages/deployer/test/fixtures/contracts/base/SafeMath.sol new file mode 100644 index 000000000..7414684a8 --- /dev/null +++ b/packages/deployer/test/fixtures/contracts/base/SafeMath.sol @@ -0,0 +1,41 @@ +pragma solidity 0.4.14; + +contract SafeMath { + function safeMul(uint a, uint b) internal constant returns (uint256) { + uint c = a * b; + assert(a == 0 || c / a == b); + return c; + } + + function safeDiv(uint a, uint b) internal constant returns (uint256) { + uint c = a / b; + return c; + } + + function safeSub(uint a, uint b) internal constant returns (uint256) { + assert(b <= a); + return a - b; + } + + function safeAdd(uint a, uint b) internal constant returns (uint256) { + uint c = a + b; + assert(c >= a); + return c; + } + + function max64(uint64 a, uint64 b) internal constant returns (uint64) { + return a >= b ? a : b; + } + + function min64(uint64 a, uint64 b) internal constant returns (uint64) { + return a < b ? a : b; + } + + function max256(uint256 a, uint256 b) internal constant returns (uint256) { + return a >= b ? a : b; + } + + function min256(uint256 a, uint256 b) internal constant returns (uint256) { + return a < b ? a : b; + } +} |