# \[fl\] comments

**URL:** <https://community.gatling.io/t/fl-comments/3588>\
**Category:** Gatling (Open-Source)\
**Created:** [February 27, 2017, 5:43pm UTC](https://community.gatling.io/t/fl-comments/3588 "2017-02-27T17:43:28Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![I\_VE](https://avatars.discourse-cdn.com/v4/letter/i/858c86/32.png) [@I\_VE](https://community.gatling.io/u/I_VE)\
**Post date:** [February 27, 2017, 5:43pm UTC](https://community.gatling.io/t/fl-comments/3588/1 "2017-02-27T17:43:28Z")

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Hi all,  
while studying gatling sources I found lots of places like

`// [fl] // // [fl]`

like here: [https://github.com/gatling/gatling/blob/master/gatling-core/src/main/scala/io/gatling/core/scenario/Simulation.scala#L106](https://github.com/gatling/gatling/blob/master/gatling-core/src/main/scala/io/gatling/core/scenario/Simulation.scala#L106)

Could you please clarify the purpose of such comments? Is it something for line numbers alignment in stack traces?  
Thanks.

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**Author:** ![Alan\_Artigao](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@Alan\_Artigao](https://community.gatling.io/u/Alan_Artigao)\
**Post date:** [September 26, 2020, 8:28am UTC](https://community.gatling.io/t/fl-comments/3588/2 "2020-09-26T08:28:16Z")

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I was curious too so I Googled without luck.

I suppose **fl** == **FrontLine**

Some sort of comment to inject code from Gatling Enterprise.

El dia dilluns, 27 de febrer de 2017 a les 18:43:28 UTC+1, [oramah...@gmail.com](mailto:oramah...@gmail.com) va escriure:

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**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [September 26, 2020, 8:56am UTC](https://community.gatling.io/t/fl-comments/3588/3 "2020-09-26T08:56:34Z")

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Exactly