mention what BN_ULONG is

1 files changed, 11 insertions, 2 deletions

diff --git a/src/lib/libcrypto/man/BN_cmp.3 b/src/lib/libcrypto/man/BN_cmp.3
index 9ca73a626f..ba973313f0 100644
--- a/src/lib/libcrypto/man/BN_cmp.3
+++ b/src/lib/libcrypto/man/BN_cmp.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: BN_cmp.3,v 1.9 2021/12/18 21:11:50 schwarze Exp $
+.\" $OpenBSD: BN_cmp.3,v 1.10 2022/11/22 19:02:07 schwarze Exp $
 .\" full merge up to: OpenSSL 5b31b9df Aug 4 10:45:52 2021 +0300
 .\"
 .\" This file was written by Ulf Moeller <ulf@openssl.org>.
@@ -48,7 +48,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 .\" OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: December 18 2021 $
+.Dd $Mdocdate: November 22 2022 $
 .Dt BN_CMP 3
 .Os
 .Sh NAME
@@ -119,6 +119,15 @@ equals
 .Fa w .
 .Fn BN_is_odd
 tests if a is odd.
+.Pp
+.Vt BN_ULONG
+is a macro that expands to
+.Vt unsigned long Pq = Vt uint64_t
+on
+.Dv _LP64
+platforms and
+.Vt unsigned int Pq = Vt uint32_t
+elsewhere.
 .Sh RETURN VALUES
 .Fn BN_cmp
 returns -1 if