Fix itrs_to_hor(), and consolidate error propagation #83

	name: API documentation

	on:
	push:
	paths:
	- 'src/**'
	- 'include/**'
	- 'css/**'
	- 'Doxyfile'
	- '*.md'
	- '.github/workflows/dox.yml'

	jobs:

	apidocs:
	name: Generate API documentation

	runs-on: ubuntu-latest
	env:
	CC: gcc
	steps:

	- uses: actions/checkout@v4

	- name: install dependencies
	run: sudo apt-get install -y doxygen

	- name: About this workflow...
	run: \|
	echo github.event_name = ${{ github.event_name }}
	echo github.repository_owner = ${{ github.repository_owner }}
	echo github.ref_name = ${{ github.ref_name }}

	- name: Run doxygen
	run: make dox

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