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authorcvs2svn <cvs2svn>2000-11-07 14:49:47 +0100
committercvs2svn <cvs2svn>2000-11-07 14:49:47 +0100
commit9d98df23f38afa21e159d910335b49fb196206e8 (patch)
tree97be0cb87a26df5765d335516956ef80d008b554 /doc/crypto/BN_cmp.pod
parentA few more constifications of some RSA routines that I forgot (diff)
downloadopenssl-rsaref.tar.gz
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-=pod
-
-=head1 NAME
-
-BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_is_odd - BIGNUM comparison and test functions
-
-=head1 SYNOPSIS
-
- #include <openssl/bn.h>
-
- int BN_cmp(BIGNUM *a, BIGNUM *b);
- int BN_ucmp(BIGNUM *a, BIGNUM *b);
-
- int BN_is_zero(BIGNUM *a);
- int BN_is_one(BIGNUM *a);
- int BN_is_word(BIGNUM *a, BN_ULONG w);
- int BN_is_odd(BIGNUM *a);
-
-=head1 DESCRIPTION
-
-BN_cmp() compares the numbers B<a> and B<b>. BN_ucmp() compares their
-absolute values.
-
-BN_is_zero(), BN_is_one() and BN_is_word() test if B<a> equals 0, 1,
-or B<w> respectively. BN_is_odd() tests if a is odd.
-
-BN_is_zero(), BN_is_one(), BN_is_word() and BN_is_odd() are macros.
-
-=head1 RETURN VALUES
-
-BN_cmp() returns -1 if B<a> E<lt> B<b>, 0 if B<a> == B<b> and 1 if
-B<a> E<gt> B<b>. BN_ucmp() is the same using the absolute values
-of B<a> and B<b>.
-
-BN_is_zero(), BN_is_one() BN_is_word() and BN_is_odd() return 1 if
-the condition is true, 0 otherwise.
-
-=head1 SEE ALSO
-
-L<bn(3)|bn(3)>
-
-=head1 HISTORY
-
-BN_cmp(), BN_ucmp(), BN_is_zero(), BN_is_one() and BN_is_word() are
-available in all versions of SSLeay and OpenSSL.
-BN_is_odd() was added in SSLeay 0.8.
-
-=cut