Difference between revisions of "FOR"
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==Class== | ==Class== | ||
Applications | Applications | ||
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==See Also== | ==See Also== | ||
| − | [[DO WHILE]], [[SCAN]] | + | [[Increment|++]], [[Decrement|--]], [[DO WHILE]], [[SCAN]] |
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<code lang="recital"> | <code lang="recital"> | ||
for i = 1 to 10 step 2 | for i = 1 to 10 step 2 | ||
| − | ?i*2 | + | ?i*2 |
next | next | ||
</code> | </code> | ||
Revision as of 12:35, 29 April 2009
Contents
Class
Applications
Purpose
Processes a list of commands in a loop for a specified number of times
Syntax
FOR <memvar> = <exp1> TO <exp2>
[STEP <expN1>]
[EXIT]
[LOOP]
NEXT
See Also
Description
The FOR ... NEXT command repeats the commands between the FOR and the NEXT statement. The <exp1> specifies the loop start point and <exp2> the loop end point. <exp1> and <exp2> may be integer or date values. The FOR...NEXT command is equivalent to a counter based DO WHILE ... ENDDO set of commands but FOR ... NEXT is faster.
STEP <expN>
If the optional STEP <expN1>, is specified, then the FOR ... NEXT loop will increment by <expN1>. This value can be a positive or negative number. If <expN1> is not specified then the FOR ... NEXT loop will increment by 1.
EXIT
The looping will continue until either <expN2> is reached or an EXIT command is encountered.
LOOP
If a LOOP command is encountered, then control returns to the start of the FOR ... NEXT loop.
Example
for i = 1 to 10 step 2 ?i*2 next
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
