When I run this code:

void Damage(int damage, string source) {
    if (source == "melee") {
        damage = (damage / Strength) - Armour;

        Health -= damage >= 0 ? damage : 0;
        
    };

    Log.push_back(("Damage " + to_string(damage)) + (" from " + source));

    if (Health <= 0) {
        Death();
    }
};

I get this error about the operator in bold:

Severity    Code    Description Project File    Line    Suppression State   Details
Error   C2677   binary '==': no global operator found which takes type 'const _Ty' (or there is no acceptable conversion)
        with
        [
            _Ty=std::string
        ]   Hello World C:Program FilesMicrosoft Visual Studio2022CommunityVCToolsMSVC14.39.33519includexmemory   2225        

I am using C++ in Visual Studio 2022

I though that this would result in the string in the parameter being checked, but it says that the data type isn’t the same.