pTAL Reference Manual (H06.08+)

Statements
HP pTAL Reference Manual—523746-006
12-26
IF
IF
The IF statement conditionally selects one of two statements to execute.
condition
is either:
•
A conditional expression whose value has 16 bits
•
An INT, INT(32), or FIXED arithmetic expression. If the result of the arithmetic
expression is not 0, condition is true. If the result is 0, condition is false.
statement-1
specifies the statement to execute if condition is true. statement-1 can be
any statement described in this section. If you omit statement-1, no action
occurs for the THEN clause.
statement-2
specifies the statement to execute if condition is false. statement-2 can be
any statement described in this section.
If the condition is true, statement-1 executes. If the condition is false,
statement-2 executes. If no ELSE clause is present, the statement following the IF
statement executes.
Example 12-25 on page 12-26 compares two arrays.
Example 12-25. IF Statement
INT .new_array[0:9];
INT .old_array[0:9];
INT item_ok;
IF new_array = old_array FOR 10 WORDS THEN
item_ok := 1
ELSE
item_ok := 0;
IF condition THEN
statement-1
statement-2
ELSE
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