Question

Suppose you want to determine if a string contains all lowercase letters. For this purpose you are going to write a procedure allLower. A C++ header for this procedure might look like int allLower (char str[]) // precondition: str is a null terminated string // postcondition: // returns true (-1) if str contains nly ї we r case letters returns false (0) if str contains any other character Using 32-bit cdecl protocol, write assembly language code to implement hasLower

Answer 1

#include <iostream>

using namespace std;

int allLower(char str[]) {
    int index = 0;
    char ch;
    while (str[index]) {
        ch = str[index];
        if (ch < 'a' || ch > 'z') {
            return 0;
        }
        index++;
    }
    return -1;
}

int main() {
    cout << allLower("lowers") << endl;
    cout << allLower("Not Lower") << endl;
    return 0;
}