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-rw-r--r--lib/kernel/doc/src/file.xml9
-rw-r--r--lib/kernel/src/file.erl3
2 files changed, 9 insertions, 3 deletions
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index 66ecba1bf2..71db9b66bd 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -1622,6 +1622,11 @@
<desc>
<p>Sets the current working directory of the file server to
<c><anno>Dir</anno></c>. Returns <c>ok</c> if successful.</p>
+ <p>The functions in the <c>file</c> module usually treat binaries
+ as raw filenames, i.e. they are passed as is even when the encoding
+ of the binary does not agree with <c>file:native_name_encoding()</c>.
+ This function however expects binaries to be encoded according to the
+ value returned by <c>file:native_name_encoding()</c>.</p>
<p>Typical error reasons are:</p>
<taglist>
<tag><c>enoent</c></tag>
@@ -1646,8 +1651,8 @@
<tag><c>no_translation</c></tag>
<item>
<p><c><anno>Dir</anno></c> is a <c>binary()</c> with
- characters coded in ISO-latin-1 and the VM was started
- with the parameter <c>+fnue</c>.</p>
+ characters coded in ISO-latin-1 and the VM is operating
+ with unicode file name encoding.</p>
</item>
</taglist>
<warning>
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 36289053eb..5467175654 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -197,7 +197,8 @@ get_cwd(Drive) ->
check_and_call(get_cwd, [file_name(Drive)]).
-spec set_cwd(Dir) -> ok | {error, Reason} when
- Dir :: name(),
+ Dir :: name() | EncodedBinary,
+ EncodedBinary :: binary(),
Reason :: posix() | badarg | no_translation.
set_cwd(Dirname) ->