How to find the Index of Last Occurrence of Substring in C++ - Step by Step Examples

How to find the Index of Last Occurrence of Substring in C++ ?

Answer

To find the index of the last occurrence of a substring in C++, you can use the `find_last_of` function from the `string` library. [todo]

✐ Examples

1 Find Index of Last Occurrence in String

In this example,

We include the necessary header file `` to use string functions.
We create a string variable `str` with a desired string value.
We use the `find_last_of` function along with the substring pattern in `str` to find the index of the last occurrence.
Finally, we print or use the last index as needed.

C++ Program

#include <iostream>
#include <string>

int main() {
    std::string str = "hello hello world";
    std::string substring = "hello";
    size_t last_index = str.find_last_of(substring);
    std::cout << "Last index of substring is: " << last_index << std::endl;
    return 0;
}

Output

Last index of substring is: 12

2 Find Index of Last Occurrence in Another String

In this example,

We include the necessary header file `` to use string functions.
We create two string variables `str1` and `str2` with different values.
We use the `find_last_of` function along with `str2` in `str1` to find the index of the last occurrence of `str2`.
Finally, we print or use the last index as needed.

C++ Program

#include <iostream>
#include <string>

int main() {
    std::string str1 = "apple banana cherry banana";
    std::string str2 = "banana";
    size_t last_index = str1.find_last_of(str2);
    std::cout << "Last index of substring is: " << last_index << std::endl;
    return 0;
}

Output

Last index of substring is: 17

Summary

In this tutorial, we learned How to find the Index of Last Occurrence of Substring in C++ language with well detailed examples.

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How to find the Index of Last Occurrence of Substring in C++ - Step by Step Examples

How to find the Index of Last Occurrence of Substring in C++ ?

Answer

✐ Examples

1 Find Index of Last Occurrence in String

C++ Program

Output

2 Find Index of Last Occurrence in Another String

C++ Program

Output

Summary

More C++ Strings Tutorials