Switch from STORAGE_SIZE to C_SIZEOF #701

Job	Run time
ci (Release, linux gnu-10)	5m 44s
ci (Release, linux clang-12)	4m 9s
ci (Release, linux nvhpc-21.9)	14m 25s
ci (Release, linux intel-classic)	7m 9s
ci (Release, macos)	5m 41s
ci (Debug, linux gnu-10)	8m 56s
ci (Debug, linux clang-12)	5m 2s
ci (Debug, linux nvhpc-21.9)	19m 50s
ci (Debug, linux intel-classic)	10m 41s
ci (Debug, macos)	6m 44s
	1h 28m 21s

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