[OnePL]

Why such use as in title of topic doesn't work?

Example:

PHP Code:

#define userFlags(%0,%1) get_user_flags(%0) & read_flags(%1)

public TakeDamage(id, ent, attacker, Float:damage) {
    if(!is_user_connected(id) || !is_user_connected(attacker) || ~userFlags(attacker, "s, v") || get_user_team(attacker) != 2) return 1;

    if(GetUserWeapon(attacker) == 28 || GetUserWeapon(attacker) == 22) {
        SetHamParamFloat(4, damage * 2.0);
        return 2;
    }
    return 1;
} 


[Bos93]

~userFlags(attacker, "sv")

[OnePL]

No. Then the player will have to have both flags.
, = or in read_flags

!(userFlags(attacker, "s, v")) working
~userFlags(attacker, "s, v")) not working

[jimaway]

lets say that the "attacker" has both flags and userFlags macro returns 4 (binary 0100)

! is a logical operator. !4 will result false
~ is a bitwise operator. ~0100 will result in 1011 (decimal 11) and that is still considered true in the if statement

[Bugsy]

Use has_all_flags()

In your case, you would use !has_all_flags( id , "sv" )