Warp chooses the solidity compiler version based on the pragma, right now it is only support 0.8 and have partial support for 0.7

Newton

How can I change solc compiler version in [warp](https://github.com/NethermindEth/warp)?

How can I change solc compiler version in warp?

How can I read contract memory with starknetjs?

Hello there,

Do you know why `pedersen_hash` needs to split felts in low 248 and high 4 bits? 

---

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Why does Starkware pedersen Hash Function split numbers in high and low bits

# Hello world!

I try to implement the function `abs_value` of the package `starkware.cairo.common.math` but i have this error

```
AssertionError: Expected main to contain the following arguments (in this order): ['range_check_ptr_ptr']. Found: ['range_check_ptr'].
```

I dont understand the error. 

Can someone explain the error to me, why it happens ? 

> I am doing the challenge #17daysOfCairo of the day 3


Full code

```
%builtins range_check_ptr
from starkware.cairo.common.math import abs_value

func main{range_check_ptr}() {
    let x = abs_value(-1);
    return ();
}
```


AssertionError with range_check_ptr_ptr

Hey there, is there an existing Math64x61_pow implementation to compute power of a floating point elevated to an integer power?

edit: looks like there is 🙂
https://github.com/influenceth/cairo-math-64x61/blob/master/contracts/cairo_math_64x61/math64x61.cairo#L278

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

Is there a Cairo Lang implementation to compute power of a floating point?

Hi team. How can I use start_prank with deploy_contract? Since get_caller_address() works in constructor now, I need a way in protostar to set caller address without having contract address. May be a 'caller' argument in deploy_contract cheatcode works best

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

How can I use start_prank with deploy_contract?

How to verify Empiric’s Data Entries Using Events?

What are implicit arguments in Cairo? When would you use them instead of normally passing in arguments to a function?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/580)_

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