Halcompile What C commands can be used?

Hi All,

I have been modifying Arceyes Boxford lathe component to control a stepper driven 30:1 gearbox fitted with a toolplate, that reverses back onto a pawl to lock it.
I have the component working, but would like to add a few features to it.


Can anyone give a list of C commands that can be used with halcompile and these type of components ?
I've search and haven't found anything except looking at other components syntax.

You can use anything from basic C, but very little from any standard libraries.

The available maths functions are in rtapi_math:
github.com/LinuxCNC/linuxcnc/blob/master/src/rtapi/rtapi_math.h

(the other files in that folder define the other commands that can be used) .

If you halcompile --preprocess your .comp then you can tell what libraries get included by looking at the generated C-code.