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  VS Arduino › Visual Micro › Visual Studio 2017, 2019, 2022 › faster compile times: ino vs cpp projects
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Normal Topic faster compile times: ino vs cpp projects (Read 2676 times)
Simonb
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faster compile times: ino vs cpp projects
Sep 11th, 2015 at 9:29pm
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Hi,

I just modified a large multifile .ino project into a .cpp and .h project (still for arduino). 

I thought the version with .cpp files would compile faster as the code is not concantenated into one single file, but it seems that the .ino project compiles faster.  

Does that make any sense? Thanks.
« Last Edit: Sep 11th, 2015 at 9:29pm by Simonb »  
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Tim@Visual Micro
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Re: faster compile times: ino vs cpp projects
Reply #1 - Sep 11th, 2015 at 9:52pm
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Yes for two reasons, one can be improved

1) It's really quick to concat the strings of .ino files into a single cpp then compiled to a single .o file.
2) Separate cpp files are each compiled to .o files

Item 2) can be improved because Visual Micro doesn't currently cache any sources from the sketch folder. That's due to change especially because we now support source code in sub folders so the number of cpp files in Arduino projects will most likely grow.

You can now create libraries in a sketch. Libraries are cached but I haven't had time to test of the caching is working for the local libs. Right mouse click the project and use the "Add>New Arduino Library" if you decide to try it out.
  
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