Cairo Prover: Prove programs with inputs

[raphaelDkhn]

Currently Cairo Prover doesn't prove programs with inputs.
It would be nice to prove Cairo programs with inputs.

[MauroToscano]

Inputs like hints ? Like the one in Stone examples ?

https://github.com/starkware-libs/stone-prover/blob/00b274b55c82077184be4c0758f7bed18950eaba/e2e_test/fibonacci.cairo#L21C1-L21C77

https://github.com/starkware-libs/stone-prover/blob/00b274b55c82077184be4c0758f7bed18950eaba/e2e_test/fibonacci_input.json

There shouldn't be any problem with them. But we haven't tested them before. So if you see any issue you can tell us, if not, over the next week we will test some programs.

[raphaelDkhn]

Not like hints. I meant prove a function main that takes input parameters.

[MauroToscano]

I think cairo0 doesn't support that.

This depends on #604 then

[Cevedale]

Here's a simple example of a main function in Cairo that takes input parameters:

cairo
Copy code
type MyContract:
data: felt

func main(input_param1: felt, input_param2: felt) -> (result: felt):
// Perform some operations using the input parameters
// For example, let's add the two input parameters and store the result in the 'data' field.
data := input_param1 + input_param2

// Return the result
result := data

In this example:

MyContract is a simple contract with a single variable data of type felt (a 256-bit integer in Cairo).
The main function takes two input parameters, input_param1 and input_param2, both of type felt.
Inside the function, it performs a simple addition of the input parameters and stores the result in the data variable.
The result is then returned.
This is a very basic example, and in a real-world scenario, you would have more complex logic in your main function, interacting with the blockchain, other contracts, or external data.

Keep in mind that Cairo is often used for smart contracts, so the main function is typically called automatically when the contract is executed on the blockchain. If you have a specific use case or more details about what you're looking for, feel free to provide additional information!
Let me know if it helped you 👍

[MauroToscano]

This should be added in the VM now