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-rw-r--r--lib/stdlib/doc/src/ets.xml21
-rw-r--r--lib/stdlib/src/ets.erl10
2 files changed, 30 insertions, 1 deletions
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml
index 05401a2d40..36c803b40c 100644
--- a/lib/stdlib/doc/src/ets.xml
+++ b/lib/stdlib/doc/src/ets.xml
@@ -1491,6 +1491,27 @@ is_integer(X), is_integer(Y), X + Y < 4711]]></code>
</func>
<func>
+ <name name="select_replace" arity="2"/>
+ <fsummary>Match the objects in an ETS table against a match_spec and
+ replaces matching objects with the match_spec result</fsummary>
+ <desc>
+ <p>Matches the objects in the table <c><anno>Tab</anno></c> using a
+ <seealso marker="#match_spec">match_spec</seealso>. If the
+ an object is matched, and the match_spec result is an object with the
+ same key, the existing object is replaced with the match_spec result.
+ For any other result from the match_spec the object is kept
+ unchanged.</p>
+ <p>The function returns the number of objects actually
+ replaced in the table.</p>
+ <note>
+ <p>The <c>match_spec</c> has to return an object with the same key if
+ the object is to be replaced. No other return value will get the
+ object replaced.</p>
+ </note>
+ </desc>
+ </func>
+
+ <func>
<name name="select_reverse" arity="1"/>
<fsummary>Continue matching objects in an ETS table.</fsummary>
<desc>
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index 90e19e6b9f..195a407570 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -70,7 +70,7 @@
match_object/2, match_object/3, match_spec_compile/1,
match_spec_run_r/3, member/2, new/2, next/2, prev/2,
rename/2, safe_fixtable/2, select/1, select/2, select/3,
- select_count/2, select_delete/2, select_reverse/1,
+ select_count/2, select_delete/2, select_replace/2, select_reverse/1,
select_reverse/2, select_reverse/3, setopts/2, slot/2,
take/2,
update_counter/3, update_counter/4, update_element/3]).
@@ -379,6 +379,14 @@ select_count(_, _) ->
select_delete(_, _) ->
erlang:nif_error(undef).
+-spec select_replace(Tab, MatchSpec) -> NumReplaced when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ NumReplaced :: non_neg_integer().
+
+select_replace(_, _) ->
+ erlang:nif_error(undef).
+
-spec select_reverse(Tab, MatchSpec) -> [Match] when
Tab :: tab(),
MatchSpec :: match_spec(),