Question about "not include"

[AandR2024]

I know you can do (string.find ("good") !=std::string::npos to do a include thing. But is there a way to do the oposite of it? An if it doesn't include command.

[Athar]

==std::string::npos ...

[3hM2Nwbp]

"Include Thing"

I'm interpreting this as to whether a string contains a provided sequence or not.

#include <iostream>
#include <string>

int main()
{
  std::string hello = "Hello!";
  std::cout <<
    hello << 
    // print "true" if hello does not contain "Hello"
    hello.find("Hello") == std::string::npos ? "true" : "false" <<
    // print "true" if hello does contain "Hello"
    hello.find("Hello") != std::string::npos ? "true" : "false" <<
  std::endl;
}

Hello!
false
true