Answer to Question #300358 in C++ for Adi

Question

Given a string, write a recursive function to find its first uppercase letter. Your function should

return the letter.

Function Prototype: char findUppercase(char* str);

Answer 1

#include <iostream>
using namespace std;

char findUppercase(char* str) {
    if (str[0] == '\0') {
        return '\0';
    }
    if (str[0] >= 'A' && str[0] <= 'Z') {
        return str[0];
    }

    return findUppercase(str+1);
}

int main() {
    char str[] = "this is a Test string";

    cout << "The first uppecase letter is \'"
         << findUppercase(str) << "\'";

    return 0;
}