Example: if
The following example checks whether characters with the ascii values 107 and 22 are alpha-numeric.
The if statement tests whether isalpha returns a non-zero value. If it does, the value is alpha-numeric. If not, the else clause prints a suitable message.
if (isalpha(107)) lr_output_message ("The value 107 is %c", 107); else lr_output_message ("The value 107 is non-alphabetic");
if (isalpha(22)) lr_output_message ("The value 22 is %c", 22); else lr_output_message ("The value 22 is non-alphabetic");
Example: Output:
Action.c(4): The value 107 is k
Action.c(11): The value 22 is non-alphabetic