aboutsummaryrefslogtreecommitdiff
path: root/contrib/bc/manuals/dc/P.1
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/bc/manuals/dc/P.1')
-rw-r--r--contrib/bc/manuals/dc/P.110
1 files changed, 7 insertions, 3 deletions
diff --git a/contrib/bc/manuals/dc/P.1 b/contrib/bc/manuals/dc/P.1
index a39132aea914..dbbee3e905c0 100644
--- a/contrib/bc/manuals/dc/P.1
+++ b/contrib/bc/manuals/dc/P.1
@@ -1,7 +1,7 @@
.\"
.\" SPDX-License-Identifier: BSD-2-Clause
.\"
-.\" Copyright (c) 2018-2020 Gavin D. Howard and contributors.
+.\" Copyright (c) 2018-2021 Gavin D. Howard and contributors.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions are met:
@@ -25,7 +25,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.TH "DC" "1" "October 2020" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
.SH Name
.PP
dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -228,8 +228,12 @@ queried with the \f[B]W\f[R] command.
generator with the \f[B]\[cq]\f[R] and \f[B]\[dq]\f[R] commands are
guaranteed to \f[B]NOT\f[R] be cryptographically secure.
This is a consequence of using a seeded pseudo-random number generator.
-However, they \f[B]are\f[R] guaranteed to be reproducible with identical
+However, they \f[I]are\f[R] guaranteed to be reproducible with identical
\f[B]seed\f[R] values.
+This means that the pseudo-random values from bc(1) should only be used
+where a reproducible stream of pseudo-random numbers is
+\f[I]ESSENTIAL\f[R].
+In any other case, use a non-seeded pseudo-random number generator.
.PP
The pseudo-random number generator, \f[B]seed\f[R], and all associated
operations are \f[B]non-portable extensions\f[R].