libzahl

big integer library
git clone git://git.suckless.org/libzahl
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zbtest.3 (475B)

      1 .TH ZBTEST 3 libzahl
      2 .SH NAME
      3 zbtest - Test a bit in a big integer
      4 .SH SYNOPSIS
      5 .nf
      6 #include <zahl.h>
      7 
      8 int zbtest(z_t \fIa\fP, size_t \fIindex\fP);
      9 .fi
     10 .SH DESCRIPTION
     11 .B zbtest
     12 returns whether the bit with the specified
     13 .I index
     14 is set in
     15 .IR a .
     16 .SH RETURN VALUE
     17 .B zbtest
     18 returns 1 if the bit is set, or 0 otherwise.
     19 .SH SEE ALSO
     20 .BR zbset (3),
     21 .BR zand (3),
     22 .BR zor (3),
     23 .BR zxor (3),
     24 .BR znot (3),
     25 .BR zlsh (3),
     26 .BR zrsh (3),
     27 .BR zsplit (3),
     28 .BR zlsb (3),
     29 .BR zbits (3)