Simplify some C++ abstractions #3887

Job	Run time
macos-static	2m 11s
windows-mingw-build (32)	1m 0s
unix (ubuntu-20.04, g++, make)	5m 29s
windows-mingw-build (64)	57s
windows (32, windows-2019)	4m 51s
unix (ubuntu-20.04, g++, cmake)	6m 30s
windows (32, windows-2022)	5m 5s
unix (ubuntu-20.04, clang++, make)	6m 53s
windows (64, windows-2019)	4m 50s
unix (ubuntu-20.04, clang++, cmake)	6m 52s
windows (64, windows-2022)	4m 33s
unix (ubuntu-22.04, g++, make)	5m 39s
unix (ubuntu-22.04, g++, cmake)	5m 46s
unix (ubuntu-22.04, clang++, make)	4m 3s
unix (ubuntu-22.04, clang++, cmake)	4m 18s
unix (macos-14, clang++, make)	6m 57s
unix (macos-14, clang++, cmake)	7m 3s
windows-mingw-testing (windows-2019, 32)	4m 21s
windows-mingw-testing (windows-2019, 64)	4m 54s
windows-mingw-testing (windows-2022, 32)	4m 3s
windows-mingw-testing (windows-2022, 64)	4m 48s
	1h 41m 3s

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