linux

optimise total size calculation for when only arithmetic types are lo… #1481

Job	Run time
build (g++-8, Debug, 17, ubuntu-20.04, ON)	6m 8s
build (g++-8, Release, 17, ubuntu-20.04, ON)	8m 10s
build (g++-10, Debug, 17, ubuntu-20.04, ON)	6m 5s
build (g++-10, Release, 17, ubuntu-20.04, ON)	8m 56s
build (g++-13, Release, 23, ubuntu-20.04, ON, sudo apt -o Acquire::Retries=5 install g++-13)	13m 19s
build (g++-13, Debug, 23, ubuntu-20.04, ON, sudo apt -o Acquire::Retries=5 install g++-13)	9m 11s
build (g++-10, Release, 17, ubuntu-20.04, OFF, -DQUILL_NO_EXCEPTIONS=ON)	1m 33s
build (g++-10, Release, 20, ubuntu-20.04, ON, -DQUILL_USE_VALGRIND=ON, -T memcheck, sudo apt -o A...	18m 12s
build (clang++-12, Release, 20, ubuntu-20.04, ON, -DQUILL_SANITIZE_ADDRESS=ON)	20m 40s
build (clang++-12, Release, 20, ubuntu-20.04, ON, -DQUILL_SANITIZE_THREAD=ON)	15m 25s
	1h 47m 39s

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