Department of Engineering

University of Cambridge >  Engineering Department >  computing help

Selection

...
if (i==3) /* checking for equality; `!=' tests for inequality */
   /* no braces needed for a single statement */
   j=4;
else{ 
  /*the braces are necessary if the 
    clause has more than one statement
   */
   j=5;
   k=6;
}
...

...
/* switch is like the case statement in pascal. 
   The values that the switching variable is compared with
   have to be constants, or `default'.
 */

switch(i){
case 1: printf("i is one\n");
        break; /* if break wasn't here, this case will
                  fall through into the next.
                */
case 2: printf("i is two\n");
        break;
default: printf("i is neither  one nor two\n");
        break;
}
...