Always pass by reference #1011

Job	Run time
Doxygen check	1m 28s
Compute matrix	5s
Verify Dev Containers / Verify devcontainers	15s
CUDA12.9 llvm / amd64 / Build llvm18/C++17 / Build llvm18/C++17	4m 52s
CUDA12.0 gcc / amd64 / Build gcc11/C++17 / Build gcc11/C++17	4m 32s
CUDA12.9 gcc / amd64 / Build gcc13/C++17 / Build gcc13/C++17	5m 52s
CUDA12.0 llvm / amd64 / Build llvm14/C++17 / Build llvm14/C++17	4m 8s
CUDA12.9 gcc / amd64 / Build gcc13/C++17 / Build gcc13/C++17	4m 56s
Verify Dev Containers / List devcontainers	4s
Verify Dev Containers / cuda12.0-llvm14	1m 48s
Verify Dev Containers / cuda12.9-gcc13	1m 49s
Verify Dev Containers / cuda12.9-llvm18	1m 9s
Verify Dev Containers / cuda12.9-gcc13	1m 29s
Verify Dev Containers / cuda12.0-gcc11	1m 58s
CUDA12.0 llvm / amd64 / Test llvm14/C++17	0s
CUDA12.9 llvm / amd64 / Test llvm18/C++17	0s
CUDA12.0 gcc / amd64 / Test gcc11/C++17 / Test gcc11/C++17	3m 53s
CUDA12.9 gcc / amd64 / Test gcc13/C++17 / Test gcc13/C++17	6m 10s
CUDA12.9 gcc / amd64 / Test gcc13/C++17	0s
CI success	2s
	44m 30s

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