Hi guys, i'm always confused about array creation and array passing.

Question

Hi guys, i'm always confused about array creation and array passing.

For example, if I want to pass an array of size 36 to a function of a different contract (parameter: uint[36] memory arrayName), I try to pass myArray which is defined as:
uint[36] memory myArray = new uint[](36);
Unfortunately, this does not compile:
TypeError: Type uint256[] memory is not implicitly convertible to expected type uint256[36] memory.
--> contracts/Contract.sol:105:9:
|
105 | uint[36] memory myArray = new uint[](36);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I cannot figure out how to write that line. Can you help me please?

#english #programming #solidity

0

30.08.2021

2 ответов

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Christoph Flecht Автор вопроса

This only works if the other contract's function does not specify a size. But this one species the size to be 36. In this case, i get TypeError: Invalid type for argument in function call. Invalid implicit conversion from uint256[] memory to uint256[36] memory requested. in the line where i invoke the other contract's function if i then try to make the "conversion" explicit via uint256[36](myArray), i get: TypeError: Explicit type conversion not allowed from "uint256[] memory" to "uint256[36] memory".

0

30.08.2021

Cheap Gems · Accepted Answer

Cheap Gems

perhaps uint[] memory myArray = new uint[](36); ?

0

30.08.2021

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Hi guys, i'm always confused about array creation and array passing.

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