fix: Fix strict-aliasing errors #243

Job	Run time
host-x86 (x86_64, g++-10)	1m 31s
host-win (x86_64)	58s
host-x86 (x86_64, clang++-11)	36s
coding-style	29s
host-arm (armv7, none, none, g++-10)	4m 46s
host-arm (armv7, none, none, clang++-11)	4m 59s
host-win-msvc	1m 48s
host-arm (aarch64, none, none, g++-10)	3m 45s
host-arm (aarch64, none, none, clang++-11)	5m 17s
host-arm (aarch64, crypto+crc, none, g++-10)	3m 57s
host-win (armv7)	53s
host-arm (aarch64, crypto+crc, none, clang++-11)	4m 27s
host-win (aarch64)	1m 3s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, g++-10)	4m 58s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, clang++-11)	6m 16s
test-win-msvc	48s
	46m 31s

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