From 986d32a62b20c32338dac4dfd27c141c8f9be0fe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Mon, 20 Jun 2016 13:25:04 +0200
Subject: Implement the new ceil/1 and floor/1 guard BIFs

Implement as ceil/1 and floor/1 as new guard BIFs (essentially part of
Erlang language). They are guard BIFs because trunc/1 is a guard
BIF. It would be strange to have trunc/1 as a part of the language, but
not ceil/1 and floor/1.
---
 erts/doc/src/erlang.xml | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'erts/doc')

diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index d0a3a77e43..18a7a5b777 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -717,6 +717,19 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
       </desc>
     </func>
 
+    <func>
+      <name name="ceil" arity="1"/>
+      <fsummary>Returns the smallest integer not less than the argument</fsummary>
+      <desc>
+        <p>Returns the smallest integer not less than
+	<c><anno>Number</anno></c>.
+        For example:</p>
+        <pre>
+> <input>ceil(5.5).</input>
+6</pre>
+        <p>Allowed in guard tests.</p>
+      </desc>
+    </func>
     <func>
       <name name="check_old_code" arity="1"/>
       <fsummary>Check if a module has old code.</fsummary>
@@ -1464,6 +1477,20 @@ true</pre>
       </desc>
     </func>
 
+    <func>
+      <name name="floor" arity="1"/>
+      <fsummary>Returns the largest integer not greater than the argument</fsummary>
+      <desc>
+        <p>Returns the largest integer not greater than
+	<c><anno>Number</anno></c>.
+        For example:</p>
+        <pre>
+> <input>floor(-10.5).</input>
+-11</pre>
+        <p>Allowed in guard tests.</p>
+      </desc>
+    </func>
+
     <func>
       <name name="fun_info" arity="1"/>
       <fsummary>Information about a fun.</fsummary>
-- 
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