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BrynM/swap_byte.cpp

Created October 7, 2025 04:49
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Swap Byte Macro
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swap_byte.cpp
/*
* This should work for ints too, but we only need bytes. Either way, both args
* must be the same type for XOR to work properly.
* https://dev.to/pauljlucas/a-generic-swap-macro-in-c-22me
* https://www.hackerearth.com/practice/notes/swapping-without-a-temporary-variable-take-care/
* https://dev.to/pauljlucas/cc-preprocessor-macros-fh5
*/
#define SWAP_BYTE(A, B) do { ( (A) ^= (B) ^= (A) ^= (B) ); } while (0)
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