Repeat

Repeat allows you to repeat a loop of instructions until a condition becomes true.

Syntax

RepeatINSTRUCTION_LISTUntil EXPRESSION

• INSTRUCTION_LIST is a list of instructions in a script.
• EXPRESSION is a numeric expression that is considered as true if it is not equal to 0.

Examples

# Example 1 : let's perform a computation with successive approximationsVARIA=INIT_VALUERepeatVARIA=func ITERATE(VARIA)Until abs(func COMPUTE(VARIA)-TARGET)<EXPECTED_PRECISION# Example 2 : let's wait until the database is updated or until a limit hour is reachedTIMEOUT="22:00:00"RepeatSleep 1Break func DATABASE_UPDATED=1Until time$>=TIMEOUT

Description

Repeat allows you to perform loops until:

• A condition becomes true, that is the numeric expression returns a not null value.
• Or a break instruction is performed to interrupt the loop.

At least one iteration is performed on the loop, even if the condition is true when the loop starts. This is because the condition is evaluated only at the Until statement.

Associated errors

See also

For, To, Next, Step, Break, Until, While, Wend, If, Then, Else, Elsif, Endif.