[HELP] Passing a string to native function that returns an int

imindfreak · **Author**

Greetings!

I'm having trouble passing a string to a native function that returns an int.
When I run the example usage, I get an argument type mismatch (argument 1).
The native function takes a string and I pass a string to it but it doesn't work.
Basically, I want to lookup a user's bank balance using SteamID from another plugin (not by index).
The reason for this is because if a player is offline, I want to add/remove from their balance by SteamID, which is saved by nvault.

.inc

PHP Code:


			
#pragma reqlib "mylib"

native get_user_balance_steamid(const sid[])

main .sma

PHP Code:


			
public plugin_natives()
{
    register_library("mylib")
    
    register_native("get_user_balance_steamid","_get_user_balance_steamid")
}

public _get_user_balance_steamid(iPlugin,iParams)
{
    if(iParams != 1)
        return PLUGIN_CONTINUE
    
    //copy the new string over
    new sid[35];
    set_string( 1, sid, charsmax(sid))
    
    //in case the string is empty
    if(!sid[0])
        return PLUGIN_CONTINUE
    
    //if it's valid and doesn't return -1, go ahead and return the amount    
    if(get_balance_steamid(sid))
        //This calls a function that takes a string (the steam id) and looks into nvault for a     matching vaultkey with that steamid and returns the vaultdata (the balance, an int).
        return get_balance_steamid(sid) 
    
    return -1
}

Example usage

PHP Code:


			
public AddMoney(sid[], amount)
{
    //argument type mismatch (argument 1) error here
    new balance = get_user_balance_steamid(sid);
    client_print(id, print_chat, "%s", balance);
}

Thank you for your help!

**Arkshine**

You want to retrieve a string, so you should use get_string.

imindfreak

I changed it to get_string(1, sid, charsmax(sid)) but I'm still getting an argument type mismatch (argument 1) on AddMoney function when I use the get_user_balance_steamid or set_user_balance_steamid. I'm not sure what the issue is because I'm passing a string to a native function that takes a string param...

KiLLeR.

In your example there is no id for client_print.
Anyway it works for me without errors.

Code:

#include <amxmodx>

native get_user_balance_steamid(const sid[])  

public AddMoney(id, sid[], amount)
{
    new balance = get_user_balance_steamid(sid);
    client_print(id, print_chat, "%s", balance);
}

Try to compile this code and look there is no errors.

imindfreak

Quote:

Originally Posted by KiLLeR.

In your example there is no id for client_print.
Anyway it works for me without errors.

Code:

#include <amxmodx>

native get_user_balance_steamid(const sid[])  

public AddMoney(id, sid[], amount)
{
    new balance = get_user_balance_steamid(sid);
    client_print(id, print_chat, "%s", balance);
}

Try to compile this code and look there is no errors.

The client_print was just an example for the thread, but I actually don't need the player's index.
I didn't specify in my main plugin that sid[] is a string not an integer lol.

In main plugin -

PHP Code:


			
//I had this

native get_user_balance_steamid(sid);

//I should've had this

native get_user_balance_steamid(sid[]);

Thank you for your help everyone!

PRoSToTeM@

@imindfreak

Code:

native get_user_balance_steamid(sid[]);

->

Code:

native get_user_balance_steamid(const sid[]);

Also:

Code:

    //if it's valid and doesn't return -1, go ahead and return the amount    
    if(get_balance_steamid(sid))
        //This calls a function that takes a string (the steam id) and looks into nvault for a     matching vaultkey with that steamid and returns the vaultdata (the balance, an int).
        return get_balance_steamid(sid) 
    
    return -1

Code:

if(get_balance_steamid(sid))

It's an alternative of this:

Code:

if(get_balance_steamid(sid) != 0)

So, it doesn't check for != -1.
You can write just:

Code:

return get_balance_steamid(sid);