# Bool and double in api files

**URL:** <https://forum.legato.io/t/bool-and-double-in-api-files/101>\
**Category:** Legato Application Framework\
**Created:** [February 18, 2015, 12:57pm UTC](https://forum.legato.io/t/bool-and-double-in-api-files/101 "2015-02-18T12:57:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![s1nndev](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@s1nndev](https://forum.legato.io/u/s1nndev)\
**Post date:** [February 18, 2015, 12:57pm UTC](https://forum.legato.io/t/bool-and-double-in-api-files/101/1 "2015-02-18T12:57:51Z")

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Hi,

the documentation lists a limited number of [supported data types](http://www.legato.io/legato-docs/15_01/language_independent_syntax.html).

I couldn’t find “bool” and “double” in this list.

However they are currently used in existing API files, see e.g. le\_cfg.api .

So is it safe to use “bool” and “double” in own APIs?

Regards  
Georg

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**Author:** ![zblazek](https://avatars.discourse-cdn.com/v4/letter/z/a9adbd/32.png) [@zblazek](https://forum.legato.io/u/zblazek)\
**Post date:** [February 18, 2015, 5:25pm UTC](https://forum.legato.io/t/bool-and-double-in-api-files/101/2 "2015-02-18T17:25:27Z")

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Yes, it is safe to use bool and double in your APIs. The documentation will be updated in a future release.