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authorBjörn Gustavsson <[email protected]>2016-06-20 13:25:04 +0200
committerBjörn Gustavsson <[email protected]>2016-09-05 11:49:13 +0200
commit986d32a62b20c32338dac4dfd27c141c8f9be0fe (patch)
tree8c913024f55a7aec281c3f72f630f6aaf52b8bae /erts/doc
parent5dba22121d77237edae5cf805b9da5f7e056e532 (diff)
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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.
Diffstat (limited to 'erts/doc')
-rw-r--r--erts/doc/src/erlang.xml27
1 files changed, 27 insertions, 0 deletions
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
@@ -718,6 +718,19 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
</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>
<desc>
@@ -1465,6 +1478,20 @@ true</pre>
</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>
<desc>