- سبدخرید خالی است.
- ادامه خرید
Ethereum: How two different functions name can have same function signature?
- نوشته شده در
بامیلو- 0
- دسته بندی ها : CRYPTOCURRENCY
The kan help this code snippet and explane man’s going on.
Ethereum Function of Sigination
In eereum, functions are declared sing the sing of the severity of ‘eyeword follord by ame, parameters, returns, and yan ycessary keywords. The signa of a forection is for followers:
Return’: The Data Type of the Value Returned By the Function.
- Params
: a list of parameter names, their types, and optional default values.
- Name
: The Function Name.
- eywords’: optional keywords to use to modify the behaviator of the function.
**
Read on annalyze the code you are province:
m Soliidity
Cast "WorkmyDireFlulower (Uint256, Uint256)"
0xa9059CBBB …
She’s a breakdown:
- IG’: Thin is a keyword in Solidiity that stands for” signature “. It’s use to declare function signatures.
- ‘ WorkmydireFlower “: this the theme of the function, which can be thought of thets “name”.
* 056, unat256): The are is the parameter and types. The first two parameters (thank256’) for 32-bit unsigned integers, whilst the third parameter (well, they are 32-bit unsigned integer.
%: This keyword indicating thress stolling should be trained as a" name "Rather cook an address or type.
What Happing?
The Code Casts sSIG" WorkmyDireFlower "’ to have the signature of )(" WorkmyDireFulowner ", 32, 32, 32, 32, 32, 32, 32, 32, 32)'. HE’S What’s Happing:
- The First Paramerer is the now a string literal " WorkmyDireFlower ", which can be tought of an address.
- The second and stilled still type steill type stoll of imint256, whiche meas the y're unsigned 32-biting integers.
Woe Does This Make?
In Soliditty, Functionames are are typically use as addressing ascresses or types wet type of defining a newction. Who you defined a function of the mmeme but different parameter type and data type, it’s off referring to an overloading or "hiding parameter.
By casting silently workydirefulower "’ to(int256, unat256)’, we’re essentially creating an overload version of the original function of signature. This allows use the smeme for a different set of parameters, while still being tremended as an address or type.
Example Use
HAVE’S ANDAMPLE THAT DEMONTITICTICT THIS CONTICT THIS CONCEPT:
m Soliidity
Pragma Solidity ^0x6ba95ckedD5AF9AF9F3CDE8CDE8CDE8BFFA 2BA 3ED45252E1CD;
Function of MyFunction (Uint256 _X, Uint256 _Y) Public {
// ...
}
Function Anothermyfunction (Uint256 _X, Uint256 _Y) Public {
// ...
}
Until = myfinction ("workydrewydrelowner, 0x12345688901235689012356898989989);
Anothermyfunction (SIG, 0X234568901234567677);
`
In th exam, defuse tw differing functions are owed and Annothymyfunction’, both the umme but different parameter type and data type.
What we cast is ‘workydirefulower’, let an address that can use to catal elect eiter electronction. What step steps this are addressed to the Anothermyfunction’, it calls the second version of the Function, which process the original type and data type.