HP 3000 Manuals

SPL to HP C/XL Migration Guide

IF Statement 

          Table 6-9.  IF Statement 

----------------------------------------------------------------------------------------------
|                                              |                                             |
|                     SPL                      |             HP C/XL Equivalent              |
|                                              |                                             |
----------------------------------------------------------------------------------------------
|                                              |                                             |
| if-statement                                 | if-statement:                               |
|                                              |                                             |
|      IF condition-clause THEN true-statement |      if ( condition-clause ) true-statement |
|                                              |                                             |
|             [ELSE false-statement]           |             [else false-statement]          |
|                                              |                                             |
----------------------------------------------------------------------------------------------
|                                              |                                             |
| If condition-clause is true, true-statement  | Same as SPL.                                |
| is executed.  If it is false, and the ELSE   |                                             |
| clause is present, else-statement is         |                                             |
| executed; if the ELSE clause is omitted,     |                                             |
| execution falls through to the statement     |                                             |
| after true-statement.                        |                                             |
|                                              |                                             |
----------------------------------------------------------------------------------------------
|                                              |                                             |
| If the ELSE clause is present,               | Regardless of whether the else clause is    |
| true-statement must not end with a           | present, a simple true-statement must end   |
| semicolon.                                   | with a semicolon.  (The terminating "}" of  |
|                                              | a compound statement implies the            |
|                                              | semicolon.)                                 |
|                                              |                                             |
|                                              | Note that the condition-clause is enclosed  |
|                                              | in parentheses and that THEN is deleted.    |
|                                              |                                             |
----------------------------------------------------------------------------------------------

          Table 6-10.  IF Statement Examples 

---------------------------------------------------------------------------------------------
|                                             |                                             |
|                     SPL                     |             HP C/XL Equivalent              |
|                                             |                                             |
---------------------------------------------------------------------------------------------
|                                             |                                             |
|                                             |                                             |
|      IF X<0 THEN Y:=0;                      |      if (X<0) Y=0;                          |
|                                             |                                             |
|      IF X>0 THEN                            |      if (X>0)                               |
|         BEGIN                               |         {                                   |
|         Y:=0;                               |         Y=0;                                |
|         T:=V+10;                            |         T=V+10;                             |
|         END;                                |         }                                   |
|                                             |                                             |
|      IF X=0 THEN X:=21                      |      if (X==0) X=21;                        |
|             ELSE                            |         else                                |
|                BEGIN                        |            {                                |
|                Y:=0;                        |            Y=0;                             |
|                T:=V+10;                     |            T=V+10;                          |
|                END;                         |            }                                |
|                                             |                                             |
---------------------------------------------------------------------------------------------

MPE/iX 5.0 Documentation