openssl/doc/man3/BN_cmp.pod
Rich Salz 9e183d2271 Fix many doc L<> errors
Add 2017 copyright year
Add missing typedef to NAME
Remove ec(7) and bn(7) doc links
Remove .pod link errors, bogus links, make a few typo corrections
Fix some typo's in links and some missing items.
Don't link to C runtime functions (See OPENSSL_malloc for example/precedent)
Document ASN1_tag2str(), add a few typedef's that were missing from NAME
Update doc-nits target; addresses
    https://github.com/openssl/openssl/pull/1900#issuecomment-259943891,
Merge check-doc-links into find-doc-nits; if run regularly, would have found
    https://github.com/openssl/openssl/pull/2825

    Reviewed-by: Richard Levitte <levitte@openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/2862)
2017-03-11 08:56:44 -05:00

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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 COPYRIGHT
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut