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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Placement new mistakenly typedefs char16_t and char32_t when compiling using c++98"
href="http://llvm.org/bugs/show_bug.cgi?id=21307">21307</a>
</td>
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<th>Summary</th>
<td>Placement new mistakenly typedefs char16_t and char32_t when compiling using c++98
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kulakov.ilya@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The following piece of code:
#include <new>
#include <stdint.h>
typedef uint32_t char32_t;
typedef uint16_t char16_t;
int main()
{
return 0;
}
cannot be compiled with the following flags set: -stdlib=libc++ -std=c++98
The errors I get:
main.cpp:4:18: error: typedef redefinition with different types ('uint32_t'
(aka 'unsigned int') vs 'char32_t')
typedef uint32_t char32_t;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__config:227:20:
note: previous definition is here
typedef __char32_t char32_t;
^
main.cpp:5:18: error: typedef redefinition with different types ('uint16_t'
(aka 'unsigned short') vs 'char16_t')
typedef uint16_t char16_t;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__config:226:20:
note: previous definition is here
typedef __char16_t char16_t;
Mac OS X: 10.9.5 with all updates installed
clang: AppleClang 6.0.0.6000051
libc++ as reported by tool -l: 120.0.0
If I switch -stdlib to libstdc++ it compiles just fine.
Looks like including the new header file causes to include some C++11 header
files which in turn defines char16_t and char32_t. My understanding is that
libc++ thinks that placement new is C++11 feature for some reason.
^</pre>
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