cast-sig.md

cast sig

NAME

cast-sig - Get the selector for a function.

SYNOPSIS

cast sig [options] sig

DESCRIPTION

Get the selector for a function.

The signature (sig) is a fragment in the form <function name>(<types...>).

OPTIONS

{{#include common-options.md}}

EXAMPLES

1. Get the selector for the function transfer(address,uint256):

   cast sig "transfer(address,uint256)"

2. Get the selector for a function that expects a struct:

   contract Test {
       struct MyStruct {
           address addr;
           uint256 amount;
       }
       function myfunction(MyStruct memory t) public pure {}
   }

   Structs are encoded as tuples (see struct encoding).

   cast sig "myfunction((address,uint256))"

SEE ALSO

cast, struct encoding