Hashing function in c

hash.c

#include <stdio.h>
#include <string.h>

// Hashes word to a number
unsigned int hash(const char *word)
{   
    // "pneumonoultramicroscopicsilicovolcanoconiosis"
    // Another thought,
    // Coverting to binary, adding up all the 1s (ignoring place) gives us 207
    // If all ones, it would be 360

    int i = strlen(word),
        o = 0;

    while(i--)
    {
        // Store each char as ascii
        int ascii = (int) word[i];

        // As long as there's a letter
        while(ascii)
        {
            // Convert to base 2,
            // and add the '1's together
            ascii /= 2;
            o += ascii % 2;
        }
    }

    // Return the total
    return o;
}