This CL adds error handling to the mj_recompile function. If the recompile fails, the function will return -1 and set the error message in the spec. The Python wrapper for mj_recompile will catch the error and raise a ValueError exception.
PiperOrigin-RevId: 666784579
Change-Id: I225eca1769ea839c782be3c03fc4ff1ea5885a48
The bug was caused by the fact that the `mjs_as*` functions would return a pointer to a `mjC*` object, even if the input `mjsElement` pointer was null. This would cause a segfault.
PiperOrigin-RevId: 651802736
Change-Id: Ibec00d269a4befadff8a68e0513fd381c7e38a2a
Alessio Quaglino