znot.c - libzahl - big integer library
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       ---
       znot.c (419B)
       ---
            1 /* See LICENSE file for copyright and license details. */
            2 #include "internals.h"
            3 
            4 
            5 void
            6 znot(z_t a, z_t b)
            7 {
            8         size_t bits;
            9 
           10         if (unlikely(zzero(b))) {
           11                 SET_SIGNUM(a, 0);
           12                 return;
           13         }
           14 
           15         bits = zbits(b);
           16         a->used = b->used;
           17         SET_SIGNUM(a, -zsignum(b));
           18 
           19         ZMEM_1OP(a->chars, b->chars, a->used, ~);
           20         bits = BITS_IN_LAST_CHAR(bits);
           21         if (bits)
           22                 a->chars[a->used - 1] &= ((zahl_char_t)1 << bits) - 1;
           23 
           24         TRIM_AND_ZERO(a);
           25 }