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Results tagged with solidity
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user 20649
Solidity is a contract-oriented, high-level language whose syntax is similar to that of JavaScript and it is designed for writing smart contracts in Ethereum to run on the EVM. Solidity is statically typed, supports inheritance, libraries and complex user-defined types among other features.
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Testing library functions with Javascript & Truffle
I'm trying to test functions of a library with Truffle. But they don't seem to be available.
The library is named Commons and I include it as I would include a contract:
var Commons = artifacts.requ …
- 518
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Error in plugin solidity-coverage: TypeError: provider.send is not a function - Hardhat
I encountered the same problem and was able to solve it by downgrading hardhat from version 2.16.1 to 2.14.1 via npm i [email protected].
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Performing a C-like pointer increment in Solidity
How can this be done in Solidity? … v := byte(0, mload(add(sig, 96)))
}
return (v, r, s);
}
(https://solidity.readthedocs.io/en/v0.5.12/solidity-by-example.html)
So I need to derive the last 65 Byte of the extra field to derive …
- 518
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2
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677
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Invalid opcode exception when trying to resize a storage array
If Solidity has better data structures available (like a binary heap for starters), please let me know. …
- 518
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0
answers
137
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Mapping shared between contracts
The elephant in the room is to use two Solidity mappings in my contracts. …
- 518
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2
answers
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Reason for check of msg.value > 0
I came across published smart contracts (like this one from ConsensSys) that check whether msg.value is strictly larger than zero in their payable functions.
After wondering whether msg.value can be …
- 518