My solution to CS50 pset2 - "Initializing"

initials.c

#include <stdio.h>
#include <cs50.h>
#include <string.h>
#include <ctype.h>

/**
 * 
 * Write, in a file called initials.c, a program that prompts a user for
 * their name (using GetString to obtain their name as a string) and then
 * outputs their initials in uppercase with no spaces or periods,
 * followed by a newline (\n) and nothing more.
 * 
 * */

int main(void)
{
    string name = GetString();
    
    //print the first initial as an uppercase letter
    printf("%c", toupper(name[0]));
    
    //loop and find space characters.
    for (int i = 0; i < strlen(name); i++)
    {
        if (name[i] == ' ')
        {
            // print next character as an uppercase char
            printf("%c", toupper(name[i + 1]));
        }
    }
    
    //print new line
    printf("\n");
}

Steps:

1. Get input from the user.
2. Put name into an array (didn't actually need to do this. String already does this).
3. Print out the first string's first char as a capital letter.
4. Scroll through the string and find the space.
5. Print the next character after the space as a capital letter.
6. Go back to 4-5 until at end of string.
7. Print new line.

Notes:

• I can use the library ctype.h to call the function toupper to return an uppercase version of the character!
• int toupper (int ch);
• Need to increment through a loop to find the null terminator and print the first character after it? (nope)
• How would I account for the last null terminator then?
• Didn't actually need to look for the null terminator, just the spaces...duh.
• When I did the first loop I forgot to initialize i to anything and it threw an error.
• for (i = 0) instead of for (int i = 0)