The following PL/I built-in functions are supported by CodeWatch:
| ADD | COPY | LENGTH | SEARCH |
| ADDR | DECIMAL | LOW | SEARCHR |
| ADDRDATA | DIMENSION | LOWERCASE | STORAGE |
| BINARY | FIXED | MAXLENGTH | SUBSTR |
| BINARYVALUE | FLOAT | MULTIPLY | TALLY |
| BIT | HBOUND | NULL | TRIM |
| BYTE | HEX | PACKAGENAME | UPPERCASE |
| CENTER | HEXIMAGE | POINTERVALUE | UNSPEC |
| CENTERLEFT | HIGH | RANK | VERIFY |
| CHARACTER | LBOUND | REVERSE | |
| COLLATE | LEFT | RIGHT |
The following abbreviations for PL/I built-in functions are recognized: