Difference between revisions of "FOR"
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[LOOP] | [LOOP] | ||
| − | NEXT | + | ENDFOR | NEXT |
==See Also== | ==See Also== | ||
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==Description== | ==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 | + | The FOR...ENDFOR | FOR...NEXT command repeats the commands between the FOR and the ENDFOR | 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...ENDFOR | FOR...NEXT command is equivalent to a counter based DO WHILE...ENDDO set of commands but is faster. |
====STEP <expN>==== | ====STEP <expN>==== | ||
| − | If the optional STEP <expN1>, is specified, then the | + | If the optional STEP <expN1>, is specified, then the loop will increment by <expN1>. This value can be a positive or negative number. If <expN1> is not specified then the loop will increment by 1. |
====EXIT==== | ====EXIT==== | ||
| Line 26: | Line 26: | ||
====LOOP==== | ====LOOP==== | ||
| − | If a LOOP command is encountered, then control returns to the start of the | + | If a LOOP command is encountered, then control returns to the start of the loop. |
==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
| + | for i = 1 to 10 step 2 | ||
| + | ?i*2 | ||
| + | endfor | ||
| + | |||
for i = 1 to 10 step 2 | for i = 1 to 10 step 2 | ||
?i*2 | ?i*2 | ||
| Line 35: | Line 39: | ||
</code> | </code> | ||
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| − | |||
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Commands]] | [[Category:Commands]] | ||
| − | |||
| − | |||
[[Category:Looping Commands]] | [[Category:Looping Commands]] | ||
Latest revision as of 08:30, 4 January 2021
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]
ENDFOR | NEXT
See Also
++, --, DO WHILE, FOREACH, SCAN
Description
The FOR...ENDFOR | FOR...NEXT command repeats the commands between the FOR and the ENDFOR | 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...ENDFOR | FOR...NEXT command is equivalent to a counter based DO WHILE...ENDDO set of commands but is faster.
STEP <expN>
If the optional STEP <expN1>, is specified, then the loop will increment by <expN1>. This value can be a positive or negative number. If <expN1> is not specified then the 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 loop.
Example
for i = 1 to 10 step 2 ?i*2 endfor for i = 1 to 10 step 2 ?i*2 next
