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C++ String Length

In C++ there are multiple ways to get the length of a string:

  • Using length() function.
  • Using size() function.

C++ String length using length() Function

In C++, you can get the length of a string using built in function length() which is part of string library. See example below:

#include <iostream>
#include <string>
using namespace std;

int main() {
  string helloTxt = "hello";
  cout << "The length of the helloTxt string is: " << helloTxt.length();
  return 0;
}

Output

The length of the helloTxt string is: 5


C++ String length using size() Function

In C++, you can get the length of a string using built in function size() which is part of string library. See example below:

#include <iostream>
#include <string>
using namespace std;

int main() {
  string helloTxt = "hello";
  cout << "The length of the helloTxt string is: " << helloTxt.size();
  return 0;
}

Output

The length of the helloTxt string is: 5

Conclusion

In this page (written and validated by ) you learned about C++ String Length . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Access Char From String.



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