Questions tagged [function-pointer]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
21 views

How do I pass a function pointer to a contract method from a unit test?

I'm getting this error: Error: invalid type (arg="type", value="function") when trying to call this method on the contract IntOption: function create( address target, string memory name, ...
1
vote
2answers
53 views

How to store a function return in a variable?

I want to create a dynamic JSONpath in an Oraclize query. For that I wrote a function that concentrates three strings (_a = "json(http...",_b = some variable ,_c = ")].Number") to one. Calling the ...
1
vote
1answer
162 views

How to use require() with stings

I am trying to run this code on remix IDE: pragma solidity ^0.4.24; contract Aa { string public result; function feedData(string _result) public { require(_result = "e" , "...
1
vote
2answers
190 views

How to type-cast a function pointer in Solidity?

I have a function that takes a parameter of type function (uint256) view returns (uint256). I want to pass it a pointer to a function of type function (uint256) pure returns (uint256). Obviously ...