NAME 
pirutil.c - various utility functions
FUNCTIONS
- clone_string()
- clone a string. Copy the characters of src into dest and return dest. Memory allocation is done by this function, keeping this function's client code simple. Please free() the memory after usage!
- open_file(char *filename, char *mode)
- Open the file
filenamein modemode. If this fails, an error message is printed, and the program is terminated. - verbose()
- Prints the specified message if the verbose flag was set
- debug()
- Prints the specified message if the debug flag was set.
- is_op()
- Return 1 if the specified id is a Parrot op, 0 otherwise.
