Thread: Using Characters in If Else Statement

How do I do this properly?
I want it to printf a separte statement if a certain name is entered. (spencer)

Code:

int main (){
  char name[30];
printf("\nTo get started, Enter your name!\n");
                      
    scanf("%c", &name);
     if (name=='spencer')
    {
        printf("Welcome to my program Spencer");  
        }
        else{ printf ("Welcome %c", name);
        }
  
    
  system ("pause");
    }

Use single quotes for single characters.
Use double quotes for multiple characters.

You can't compare multiple characters (strings, or arrays, etc.) with ==, you need to compare each character at a time. Luckily C has a function for strings to do this: strcmp

In printf %c is for a single character and %s is for strings.


Quzah.

Thanks that was helpful but when I set my code up like this I get "welcome to my program" and "welcome spencer".
Its only supposed to say welcome to my program

Code:

int main (){
  char name[30];
   char szKey[] = "spencer";
  char szInput[80];
printf("\nTo get started, Enter your name!\n");
                       
    scanf("%s", &name);
    if( strcmp( name, "spencer") == 0 )
{
        printf("Welcome to my program");  
        }
         if( strcmp( name, "Spencer") == 0 )
{
        printf("Welcome to my program");  
        }
        else
        { 
              
              printf ("Welcome %s", name);
        }
   
     
  system ("pause");
    }

Change this:

Code:

scanf("%s", &name);

to this:

Code:

scanf("%s", name);

if((strcmp(name, "spencer")) || (strcmp(name, "Spencer)))

should help clean up the code. Your compiler may have a case insensitive version of strcmp(), or you can just lower the chars in name, and make all Spencer's, into spencer, (or SPENCER, either one), before the comparison.

Your indentation is horrid.

Code:

if (strcmp(name, "spencer") == 0 ) {
    printf("Welcome to my program"); 
}
if (strcmp(name, "Spencer") == 0 ) {
    printf("Welcome to my program"); 
}
else {
    printf ("Welcome %s", name);
}

There. else statements are executed when the previous if statement is NOT executed. For example:

Code:

if (age < 18)
    printf("You can not smoke cigarettes.\n");
else
    printf("Light up, hophead!\n");

Just take out the first if statement in the code I posted above, and you should be good.