fix: Fix strict-aliasing errors #253

Job	Run time
host-arm (armv7, none, none, g++-10)	4m 34s
host-arm (armv7, none, none, clang++-11)	8m 54s
host-win-msvc	1m 20s
host-win (x86_64)	53s
coding-style	14s
host-arm (aarch64, none, none, g++-10)	4m 22s
host-win (armv7)	43s
host-arm (aarch64, none, none, clang++-11)	7m 4s
host-win (aarch64)	51s
host-x86 (x86_64, g++-10)	1m 59s
host-arm (aarch64, crypto+crc, none, g++-10)	4m 49s
host-x86 (x86_64, clang++-11)	20s
host-arm (aarch64, crypto+crc, none, clang++-11)	7m 21s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, g++-10)	4m 16s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, clang++-11)	5m 54s
test-win-msvc	50s
	54m 24s

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