Challenge: Concatenate Strings

Test your understanding of variadic templates by solving this challenge on concatenating strings.

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Problem statement

In the dynamic world of programming, optimizing string operations is a vital skill for developers to master. You are tasked to construct a class template strOps that concatenates a variable number of strings, counts the total number of characters in the concatenated string, and counts the total number of strings combined. Additionally, create a function template display_info to display this information. You also need to create supporting functions to accomplish these tasks.

Note: Ensure that your implementation utilizes variadic templates, fold expressions, and variadic variable templates to achieve the required functionality.


We can extract the following information from the problem statement:

  • The strOps class: A variadic template class that takes any number of string arguments. It has three member variables.

  • The concatenate function: A member function that concatenates the input strings using fold expressions. We can use the following expression to concatenate all the arguments using the + operator.

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