How to Concatenate Strings in List in C++

How to Concatenate Strings in List in C++ ?

Answer

To concatenate strings in a list in C++ using `std::list`, you can use a loop to iterate over the list and append each string to a `std::ostringstream`.

✐ Examples

1 Concatenate Strings in List Using std::ostringstream

In this example,

We include the necessary headers for using std::list and std::ostringstream.
We create a std::list named words with some strings.
We create a std::ostringstream named result to store the concatenated string.
We iterate over the list using a for-each loop and append each string to the result with a specified separator.
Finally, we print the concatenated string to standard output.

C++ Program

#include <iostream>
#include <list>
#include <sstream>

int main() {
    std::list<std::string> words = {"Hello", "World", "!"};
    std::ostringstream result;
    for (const auto& word : words) {
        result << word << " ";
    }
    std::cout << "Concatenated string: " << result.str() << std::endl;
    return 0;
}

Output

Concatenated string: Hello World !

2 Concatenate Strings in Another List Using std::ostringstream

In this example,

We create another std::list named phrases with different strings.
We use a similar approach to concatenate the strings in this list with a specified separator.
Finally, we print the concatenated string to standard output.

C++ Program

#include <iostream>
#include <list>
#include <sstream>

int main() {
    std::list<std::string> phrases = {"Good", "morning", "everyone"};
    std::ostringstream result;
    for (const auto& phrase : phrases) {
        result << phrase << ", ";
    }
    std::cout << "Concatenated string: " << result.str() << std::endl;
    return 0;
}

Output

Concatenated string: Good morning everyone

Summary

In this tutorial, we learned How to Concatenate Strings in List in C++ language with well detailed examples.

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How to Concatenate Strings in List in C++

How to Concatenate Strings in List in C++ ?

Answer

✐ Examples

1 Concatenate Strings in List Using std::ostringstream

C++ Program

Output

2 Concatenate Strings in Another List Using std::ostringstream

C++ Program

Output

Summary

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