stoi

The stoi function in C++ is used to convert a string to an integer. It takes a string as input and returns the corresponding integer value. Here is an explanation of each step involved in using stoi:

1. Include the necessary header file: To use the stoi function, you need to include the header file in your C++ program.

2. Declare a string variable: Create a string variable and assign the string value that you want to convert to an integer.

3. Call the stoi function: Use the stoi function and pass the string variable as an argument. The function will convert the string to an integer and return the result.

4. Store the converted value: Assign the returned value to an integer variable to store the converted integer value.

5. Handle exceptions: The stoi function throws an exception if the conversion fails. You can use exception handling techniques to handle such cases.

That's it! You have successfully used the stoi function to convert a string to an integer in C++.