From baf98240a47f4e32da85ac8160c35fe03bf60576 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Fri, 17 Nov 2017 07:58:10 +0100
Subject: Document INTERNAL_ERROR_ARC4RANDOM_GETENTROPY_FAIL

Close #3239.
---
 c-user/fatal_error.rst | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'c-user')

diff --git a/c-user/fatal_error.rst b/c-user/fatal_error.rst
index 917ae3b..396cb44 100644
--- a/c-user/fatal_error.rst
+++ b/c-user/fatal_error.rst
@@ -388,6 +388,10 @@ INTERNAL_ERROR_ILLEGAL_USE_OF_FLOATING_POINT_UNIT (38)
     The floating point unit was used illegally, for example in interrupt
     context on some architectures.
 
+INTERNAL_ERROR_ARC4RANDOM_GETENTROPY_FAIL (39)
+    A :c:func:`getentropy` system call failed in one of the `ARC4RANDOM(3)
+    <https://man.openbsd.org/arc4random.3>`_ functions.
+
 Operations
 ==========
 
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