fix: Fix strict-aliasing errors #247

Job	Run time
host-win (x86_64)	1m 4s
host-win (armv7)	56s
host-win (aarch64)	48s
coding-style	10s
host-win-msvc	1m 30s
host-arm (armv7, none, none, g++-10)	4m 35s
host-x86 (x86_64, g++-10)	1m 25s
host-arm (armv7, none, none, clang++-11)	4m 41s
host-x86 (x86_64, clang++-11)	29s
host-arm (aarch64, none, none, g++-10)	4m 17s
host-arm (aarch64, none, none, clang++-11)	5m 43s
host-arm (aarch64, crypto+crc, none, g++-10)	3m 28s
host-arm (aarch64, crypto+crc, none, clang++-11)	3m 59s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, g++-10)	4m 32s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, clang++-11)	4m 14s
test-win-msvc	52s
	42m 43s

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