# Calling C++ contracts from EVM

Calling a C++ contract from an EVM contract uses a standard Solidity interface to abstract the C++ implementation. This approach ensures that calls from EVM to C++ are as straightforward as EVM-to-EVM calls.

First, we define a Solidity interface that matches the signature of the C++ functions you wish to call. This interface acts as a facade, providing a Solidity view of the C++ contract functionalities:

```solidity
interface MyContract {
    function myFunction(uint256 arg1, uint256 arg2) external view returns (uint256);
}
```

Then, we use the defined interface to make calls to the C++ contract. This is handled similarly to any inter-contract communication in Solidity, ensuring a seamless integration layer:

```solidity
contract AnotherContract {
    function callMyFunction(address cppAddr, uint256 arg1, uint256 arg2) public view returns (uint256) {
        return MyContract(cppAddr).myFunction(arg1, arg2);
    }
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.applayer.com/testnet/evm-contracts/calling-cpp-contracts-from-evm.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
