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#define max(x,y) ( { __auto_type __x = (x); __auto_type __y = (y); __x > __y ? __x : __y; })GNU C. Also works with Clang. Avoids evaluating the arguments multiple times. The optimizer will convert the branch into a conditional move, if it doesn't I'd replace the ternary with the "bit hacker 2" version.
kinda strange solution in that you are replacing one library function with another...
__auto_typeis a compiler builtin, not a library function. It's not a function at all, the parentheses are for precedence & grouping.
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