you're not assigning a value to the tempvar before the switch. Not sure how  to handle this case.

Try this :
```tempvar rate_model: CardRateModel;
    if (card_rate.card_rate_1.rarity == 1) {
        assert rate_model = card_rate.card_rate_1;
    } else {
        assert rate_model = card_rate.card_rate_2;
    }
```
It should be similar to your use case, only difference is the use of assert before assigning the value to the tempvar

_This answer was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Newton

I have a switch statment where I need to set two distinct, values so thought I would use a tuple  or a struct but I keep getting:

For a struct

`Expected a 'felt' or a pointer type. Got:<TYPE PATH> `

For a tuple

`Expected a 'felt' or a pointer type. Got:(felt,felt) `

This is with the unset tempvar being declared before the branching, and being set in each of the paths. 


_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

A switch statement in Cairo lang to set two distinct values

In Cairo is there a way to declare a bunch of storage vars at once. Right now I have to put the @storage_var before every storage var, is there a way to do all of these at once


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/220)_

Cairo Multiple Storage Vars

How can I prepare my Cairo lang project for an audit?

What is the proper way to declare a string in Cairo?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/573)_

Declaring Strings in Cairo

I'm trying to run the contract example from https://pkg.go.dev/github.com/dontpanicdao/caigo#section-readme
```
cd examples/contract
go mod tidy
go run main.go
```
and i get 
```
./main.go:28:34: undefined: contracts.CounterCompiled
```

So i tried to compile the counter.cairo file and got
```
counter.cairo:17:5: Unknown identifier '__main__.counter.write'.
    counter.write(0);
    ^***********^
```
the code looks fine [https://github.com/coburn24/caigo/blob/main/contracts/src/counter.cairo](https://github.com/coburn24/caigo/blob/main/contracts/src/counter.cairo)
not sure why im getting this error
`cairo-compile v0.10.3`


caigo error: undefined: contracts.CounterCompiled

**I want to put a disconnect button in my dapp, does anyone know how to do this on the frontend?**

anyone know how to disconnect the connected wallet on the frontend with starknetjs or another way?

Hey,
As each storage value is by default initialized to 0, does writing it to zero actually do something? Does it use storage in layer 1 with value 0? Or does it just do nothing?
Should I check that the value I want to write is different than 0 before writing it otherwise I will waste storage?

The same idea: does writing a storage value to 0 free storage on l1

Does writing it to zero actually do something?

Hi,

any idea what this could be caused by? This function is mentioned only once in the whole codebase. I’m trying to do protostar build

```python
Redefinition of '__wrappers__.get_pool_balance.__wrapped_func'.

func get_pool_balance{syscall_ptr : felt*, pedersen_ptr : HashBuiltin*, range_check_ptr}(
```

This error always appears with the first function it encounters that is annotated with either @view or @external

Can be reproduced in the repro-redefinition branch of [https://github.com/CarmineOptions/carmine-protocol.git](https://github.com/CarmineOptions/carmine-protocol.git)

Has anyone seen this error in proto? Redefinition of *`wrappers.*ourfunctionname.__wrapped_func__’`?

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A switch statement in Cairo lang to set two distinct values

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