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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-05-11 18:12:39 +0800 |
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committer | GitHub <noreply@github.com> | 2018-05-11 18:12:39 +0800 |
commit | f42f608f3f97a5244f09f17ae5ee184c0f775de3 (patch) | |
tree | 08fd03d69f8a7dfcc7beadcd56c5d1624928c430 /packages/sol-compiler/test/fixtures/contracts/base/SafeMath.sol | |
parent | 44f17c1706e7b3208fdc0702c54a8cd943132fd3 (diff) | |
parent | c093aab350dfbd86972d6388c3923ec60fc4501a (diff) | |
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Merge pull request #574 from 0xProject/feature/rm-rf-deployer
Remove @0xproject/deployer.Deployer. Make contracts able to deploy themselves
Diffstat (limited to 'packages/sol-compiler/test/fixtures/contracts/base/SafeMath.sol')
-rw-r--r-- | packages/sol-compiler/test/fixtures/contracts/base/SafeMath.sol | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/packages/sol-compiler/test/fixtures/contracts/base/SafeMath.sol b/packages/sol-compiler/test/fixtures/contracts/base/SafeMath.sol new file mode 100644 index 000000000..92ce11cde --- /dev/null +++ b/packages/sol-compiler/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; + } +} |