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<p class="MsoNormal">Ah, sorry – my apologies.<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Marshall Clow <mclow.lists@gmail.com><br>
<b>Date: </b>Monday, September 23, 2019 at 12:14 PM<br>
<b>To: </b>Shoaib Meenai <smeenai@fb.com><br>
<b>Cc: </b>"libcxx-dev@lists.llvm.org" <libcxx-dev@lists.llvm.org><br>
<b>Subject: </b>Re: [libcxx-dev] Non-merged type info name comparison<o:p></o:p></span></p>
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<p class="MsoNormal">On Mon, Sep 23, 2019 at 12:02 PM Shoaib Meenai via libcxx-dev <<a href="mailto:libcxx-dev@lists.llvm.org">libcxx-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__reviews.llvm.org_rL361913&d=DwMFaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=o3kDXzdBUE3ljQXKeTWOMw&m=zXNo5HfpEBs2AeK5MYbybBHSXRWS2rfFR2LYPo1zuhA&s=5In-WOhspL-mxLcgsafyIl0_G_S9IkKnfaj3lVT6y44&e=" target="_blank">
https://reviews.llvm.org/rL361913</a>, libc++ gained the option to make type info comparisons use a strcmp on the type info name, which is useful for when we can’t guarantee RTTI uniqueness. I believe libstdc++ also defaults to strcmp comparisons. However,
libstdc++ doesn’t perform the string comparison when the type info name begins with the * character [1], which is the case for e.g. types defined in anonymous namespaces. Should libc++’s implementation be changed to match, at least when targeting Linux?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">[1]
<a href="https://github.com/gcc-mirror/gcc/blo" target="_blank">https://github.com/gcc-mirror/gcc/blo</a> (rest of link elided)<o:p></o:p></p>
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<p class="MsoNormal">Please don't post links/snippets of GPL code here; we can't look at them for licensing reasons.<o:p></o:p></p>
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<p class="MsoNormal">-- Marshall<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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