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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>261033</bug_id>
          
          <creation_ts>2023-09-01 07:40:13 -0700</creation_ts>
          <short_desc>makeUnique isn&apos;t always a substitute for std::make_unique</short_desc>
          <delta_ts>2023-09-22 17:03:55 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Web Template Framework</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=261985</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Jean-Yves Avenard [:jya]">jean-yves.avenard</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1974991</commentid>
    <comment_count>0</comment_count>
    <who name="Jean-Yves Avenard [:jya]">jean-yves.avenard</who>
    <bug_when>2023-09-01 07:40:13 -0700</bug_when>
    <thetext>consider the following:

auto b = std::make_unique&lt;int&gt;(12345);

b is now an unique_ptr&lt;int&gt;, pointing to a single int* with a valid of 12345.

makeUnique&lt;int&gt;(12345&gt;

gives the error:
```
/Users/jyavenard/Work/webkit/OpenSource/WebKitBuild/Debug/usr/local/include/wtf/StdLibExtras.h:595:41: error: type &apos;int&apos; cannot be used prior to &apos;::&apos; because it has no members
    static_assert(std::is_same&lt;typename T::webkitFastMalloced, int&gt;::value, &quot;T is FastMalloced&quot;);
                                        ^
/Users/jyavenard/Work/webkit/OpenSource/Tools/TestWebKitAPI/Tests/WebCore/MediaPromise.cpp:524:17: note: in instantiation of function template specialization &apos;WTF::makeUnique&lt;int, int&gt;&apos; requested here
    auto test = makeUnique&lt;int&gt;(12345);
 ```</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1974992</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2023-09-01 07:40:31 -0700</bug_when>
    <thetext>&lt;rdar://problem/114820281&gt;</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>