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authorErlang/OTP <[email protected]>2014-06-19 13:47:21 +0200
committerErlang/OTP <[email protected]>2014-06-19 13:47:21 +0200
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</header>
<p>This document describes the changes made to the STDLIB application.</p>
+<section><title>STDLIB 2.1</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p><c>filelib:wildcard("broken_symlink")</c> would return
+ an empty list if "broken_symlink" was a symlink that did
+ not point to an existing file.</p>
+ <p>
+ Own Id: OTP-11850 Aux Id: seq12571 </p>
+ </item>
+ <item>
+ <p><c>erl_tar</c> can now handle files names that contain
+ Unicode characters. See "UNICODE SUPPORT" in the
+ documentation for <c>erl_tar</c>.</p>
+ <p>When creating a tar file, <c>erl_tar</c> would
+ sometime write a too short end of tape marker. GNU tar
+ would correctly extract files from such tar file, but
+ would complain about "A lone zero block at...".</p>
+ <p>
+ Own Id: OTP-11854</p>
+ </item>
+ <item>
+ <p> When redefining and exporting the type <c>map()</c>
+ the Erlang Code Linter (<c>erl_lint</c>) erroneously
+ emitted an error. This bug has been fixed. </p>
+ <p>
+ Own Id: OTP-11872</p>
+ </item>
+ <item>
+ <p>
+ Fix evaluation of map updates in the debugger and
+ erl_eval</p>
+ <p>
+ Reported-by: José Valim</p>
+ <p>
+ Own Id: OTP-11922</p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>The following native functions now bump an appropriate
+ amount of reductions and yield when out of
+ reductions:</p> <list>
+ <item><c>erlang:binary_to_list/1</c></item>
+ <item><c>erlang:binary_to_list/3</c></item>
+ <item><c>erlang:bitstring_to_list/1</c></item>
+ <item><c>erlang:list_to_binary/1</c></item>
+ <item><c>erlang:iolist_to_binary/1</c></item>
+ <item><c>erlang:list_to_bitstring/1</c></item>
+ <item><c>binary:list_to_bin/1</c></item> </list>
+ <p>Characteristics impact:</p> <taglist>
+ <tag>Performance</tag> <item>The functions converting
+ from lists got a performance loss for very small lists,
+ and a performance gain for very large lists.</item>
+ <tag>Priority</tag> <item>Previously a process executing
+ one of these functions effectively got an unfair priority
+ boost. This priority boost depended on the input size.
+ The larger the input was, the larger the priority boost
+ got. This unfair priority boost is now lost. </item>
+ </taglist>
+ <p>
+ Own Id: OTP-11888</p>
+ </item>
+ <item>
+ <p>
+ Add <c>maps:get/3</c> to maps module. The function will
+ return the supplied default value if the key does not
+ exist in the map.</p>
+ <p>
+ Own Id: OTP-11951</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>STDLIB 2.0</title>
<section><title>Fixed Bugs and Malfunctions</title>