HP 3000 Manuals HP 3000 Manuals
Function Designator
Table 5-9. Function Designator
-----------------------------------------------------------------------------------------------
| | |
| SPL | HP C/XL Equivalent |
| | |
-----------------------------------------------------------------------------------------------
| | |
| function-designator: | function-designator: |
| | |
| 1. function-id | 1. function-id ( ) |
| | |
| 2. function-id ( ) | 2. function-id ( ) |
| | |
| 3. function-id ( actual-parm [,...] ) | 3. function-id ( actual-parm [,...] ) |
| | |
-----------------------------------------------------------------------------------------------
| | |
| actual-parm: | actual-parm: |
| | |
| a. simple-variable-id | a. simple-variable-id |
| | |
| b. array/ptr-id | b. array/ptr-id "["0"]" OR *array/ptr-id |
| | |
| c. array/ptr-id ( index ) | c. array/ptr-id "[" index "]" |
| | |
| d. procedure-id | d. function-id |
| | |
| e. label-id | e. (No equivalent) |
| | |
| f. arithmetic-expression | f. numeric-expression |
| | |
| g. logical-expression | g. numeric-expression |
| | |
| h. assignment-statement | h. assignment-expression |
| | |
| i. * | i. (No equivalent) |
| | |
-----------------------------------------------------------------------------------------------
| | |
| A typed procedure (or subroutine) may be | A function may be used in a numeric |
| used as a function in an arithmetic or | expression, except if the function is typed |
| logical expression. | as void. |
| | |
| Formats 1 and 2 are equivalent. | As shown in format 1, HP C/XL requires the |
| | parentheses even if there are no actual |
| | parameters. |
| | |
-----------------------------------------------------------------------------------------------
See "Procedure Call Statement" and "Data Type" for more details about
parameters passed by reference.