Like we have string = "Cow eat Grass/Cat eat mouse/Dog eat meat/Fish eat worm/Snake eat mouse" I try to make function like:

std::string getTheLastAnimalText(const std::string& source)

{

// .... Can you help here :) 

return "Snake eat mouse";

I try to make this function but i can't ;(

CodePudding user response：

You can use std::basic_string::find_last_of and std::basic_string::substr, like following.

Also if you need supporting several delimiters, e.g. also comma, then replace in my code "/" with "/,".

Try it online!

#include <string>
#include <iostream>

std::string getTheLastAnimalText(std::string const & source) {
    return source.substr(source.find_last_of("/")   1);
}

int main() {
    std::cout << getTheLastAnimalText("Cow eat Grass/Cat eat mouse/Dog eat meat/Fish eat worm/Snake eat mouse");
}

Output:

Snake eat mouse

CodePudding user response：

You can use std::string::find_last_of as shown below:

const std::string input = "Cow eat Grass/Cat eat mouse/Dog eat meat/Fish eat worm/Snake eat mouse";
auto const pos = input.find_last_of('/');
const auto last = input.substr(pos   1);
std::cout << last<< std::endl;             //prints Snake eat mouse