[Emp`]

The any tag that you are using is to prevent tag mismatch warnings when using the function.

Casting the getarg native with bool/float/etc. just changes the association of the variable to prevent tag mismatch warnings within the function.

[alexx109]

And what about by-reference vars? Arrays are still passed by-ref even as a dynamic argument catched by get_arg?

And about int vars as ref, in "normal" function headers we use & to flag them as passed-by-ref...

I guess it is through set_string, set_array and set_param_byref, am I correct?

[Exolent[jNr]]

Originally Posted by alexx109 And what about by-reference vars? Arrays are still passed by-ref even as a dynamic argument catched by get_arg? And about int vars as ref, in "normal" function headers we use & to flag them as passed-by-ref... I guess it is through set_string, set_array and set_param_byref, am I correct?

No, those functions are used in dynamic natives.

Here is an example for an array in dynamic arguments:

foo( )
{
    new iArray[ 32 ];
    // pretend the array has values
    
    EmptyArray( iArray, sizeof( iArray ) );
}

bar( )
{
    new iValue = 3;
    GetValue( iValue );
    // iValue = 5 now
}

// EmptyArray( array[], const size )
EmptyArray( ... )
{
    new size = getarg( 1 );
    
    for( new i = 0; i < size; i++ )
    {
        setarg( 0, i, 0 );
        // setarg( arg, array_index, value )
        // same as doing:
        array[ i ] = 0;
    }
}

// GetValue( &value )
GetValue( ... )
{
    setarg( 0, _, 5 );
}

I'm not sure about the byref integer, but the array should work.

[abdul-rehman]

What deos byref really means ??
I cant understand it

[Exolent[jNr]]

Originally Posted by abdul-rehman What deos byref really means ?? I cant understand it

by-reference

[ot_207]

Originally Posted by Exolent[jNr] by-reference

Which translates into pointer reference.

[abdul-rehman]

Originally Posted by ot_207 Which translates into pointer reference.

Originally Posted by Exolent[jNr] by-reference

I know that it means by reference/ pointer reference but what deos it do in reality
for eg i saw a post in which the coder was trying to do this:

PHP Code:

new Float: value = pev(id, pev_fuser2) 


And in the next post arkshine said that it was wrong and he said that the float values need to be passes as by-reference values like this:

PHP Code:

new Float:somthing
pev( id, pev_fuser2, somthing) 


What is the difference ??

[Arkshine]

If the value is 3.5, the first will return 3 and second 3.5.

[Bugsy]

@abdul_rehman

pev() funcwiki

To retrieve an integer, supply no extra parameters.
To retrieve a float, pass a single float by reference.
To retrieve a string, pass a string array and max length.

The pev function itself returns an integer.

PHP Code:

new IntVar = pev( id , pev_whatever ); 


Passing 1 additional param will pass a float byref.

PHP Code:

new Float:FloatVar;
pev( id , pev_whatever , FloatVal ); 


Passing 2 additional params will pass a string byref for max length.

PHP Code:

new StringVar[ 10 ];
pev( id , pev_whatever , StringVar , charsmax( StringVar ) ); 


[ehha]

PHP Code:

new Float: value = pev(id, pev_fuser2) 


This gave me 0, pev_fuser2 being 2.1.