Check several signals in one String C++

Question

I want to search a position in one string which isn't equal to "(",")","!","&","|",";". If I use if(str[1] != "!" && str[1] != "(" ...), it is too long... is there something I can use to make this simple?

Answer 1

I think you're talking about find_first_not_of. str.find_first_not_of("!(...").