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Migrate contracts to Solidity 0.7 (#2319)

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* Update contract pragmas to solidity 0.7

* Remove internal declaration on constructors

* Reference SafeMath explicitely

* Remove public constructor declaration from abstract contracts

* Remove public constructor declaration from non-abstract contracts
This commit is contained in:
Elena Gesheva
2020-07-30 00:11:32 +03:00
committed by GitHub
parent 09014f90f9
commit 04fc35707d
125 changed files with 194 additions and 193 deletions
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README.md
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@ -28,12 +28,12 @@ OpenZeppelin Contracts features a [stable API](https://docs.openzeppelin.com/con
Once installed, you can use the contracts in the library by importing them:
```solidity
pragma solidity ^0.6.0;
pragma solidity ^0.7.0;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
contract MyCollectible is ERC721 {
constructor() ERC721("MyCollectible", "MCO") public {
constructor() ERC721("MyCollectible", "MCO") {
}
}
```