Question

Use C++ language please

Write your own version of stoi function that takes as a parameter a string argument and returns the

corresponding integer as the original stoi function. You may name your function as stringtoint. Demonstrate your function in a driver program

Answer 1

To write a custom version of the stoi function in C++, you can iterate through each character in the string and calculate the corresponding integer value.

Step-by-step explanation:

To write a custom version of the stoi function in C++, you can iterate through each character in the string and calculate the corresponding integer value. Here is an example:

int stringtoint(string str) {
int result = 0;
for (int i = 0; i < str.length(); i++) {
result = result * 10 + (str[i] - '0');
}
return result;
}

To demonstrate the function in a driver program, you can prompt the user to enter a string, call the stringtoint function with the input, and print the resulting integer. For example:

int main() {
string str;
cout << "Enter a number: ";
cin >> str;
int num = stringtoint(str);
cout << "Converted integer: " << num << endl;
return 0;
}