$INCLUDEONCE: Difference between revisions
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(Created page with "The '''$INCLUDEONCE''' metacommand, when placed in include files, prevents that the file's contents can be injected multiple time into a program. {{PageSyntax}} : $INCLUDEONCE {{PageDescription}} * This Metacommand can be placed everywhere in an include file, but must be the only thing in the line, hence no additional whitespace or comments. * If placed in the main program, $INCLUDEONCE does nothing and is simply ignored without error. {{PageAvailability}}...") |
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The '''$INCLUDEONCE''' metacommand, when placed in include files, prevents that the file's contents can be injected multiple | The '''$INCLUDEONCE''' metacommand, when placed in include files, prevents that the file's contents can be injected multiple times into a program. | ||
| Line 7: | Line 7: | ||
{{PageDescription}} | {{PageDescription}} | ||
* This [[ | * This [[metacommand]] does not require a comment ''[[Apostrophe|']]'' or [[REM]] before it. | ||
* If placed in the main program, $INCLUDEONCE does nothing and is simply ignored without error. | * It can be placed everywhere in an include file, but must be the '''only''' thing in the line, hence no additional whitespace or comments. | ||
* If placed in the main program, '''$INCLUDEONCE''' does nothing and is simply ignored without error. | |||
* '''$INCLUDEONCE''' will not work if placed inside pre-compiler [[$IF]]..[[$ELSE]]...[[$END IF]] blocks. | |||
Revision as of 13:43, 8 February 2024
The $INCLUDEONCE metacommand, when placed in include files, prevents that the file's contents can be injected multiple times into a program.
Syntax
Description
- This metacommand does not require a comment ' or REM before it.
- It can be placed everywhere in an include file, but must be the only thing in the line, hence no additional whitespace or comments.
- If placed in the main program, $INCLUDEONCE does nothing and is simply ignored without error.
- $INCLUDEONCE will not work if placed inside pre-compiler $IF..$ELSE...$END IF blocks.
Availability
none
v3.12.0
yes
yes
yes
See also