Switch statement not doing what I expect

Question

What is wrong with this code:

switch (n)
{
    case 0:   strcpy(resultString, \"Zero\");
    case 1:   strcpy(resultString, \"One\");
    case 2:   strcpy(re         


        

Answer 1

You need a break statement at the end of each case. Otherwise control falls straight through to the next case.

Change your code to:

switch (n)
{
    case 0: strcpy(resultString, "Zero"); 
            break;
    case 1: strcpy(resultString, "One"); 
            break;
    case 2: strcpy(resultString, "Two"); 
            break;
    case 3: strcpy(resultString, "Three"); 
            break;
    case 4: strcpy(resultString, "Four"); 
            break;
    case 5: strcpy(resultString, "Five"); 
            break;
    case 6: strcpy(resultString, "Six"); 
            break;
    case 7: strcpy(resultString, "Seven"); 
            break;
    case 8: strcpy(resultString, "Eight"); 
            break;
    case 9: strcpy(resultString, "Nine"); 
            break;
}
printf("%s", resultString);

You can find the switch statement documented here or in any book on the C language.