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<?php $bits64 = 64; $N64 = 0xfffffffffffffffe; $result = -( bcpow(2, $bits64) - $N64 ); echo $result,"\n"; echo bcpow(2,$bits64) , "\n",$N64;
Output for git.master, git.master_jit, rfc.property-hooks
-0 18446744073709551616 1.844674407371E+19

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