<div dir="ltr">You'll need a gdb pretty printer - currently libc++ doesn't provide/have any gdb pretty printers in-tree. the Chromium project has some though, which you could use. <a href="https://chromium.googlesource.com/chromium/src/+/master/third_party/libcxx-pretty-printers/printers.py">https://chromium.googlesource.com/chromium/src/+/master/third_party/libcxx-pretty-printers/printers.py</a></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 6, 2019 at 1:05 PM 自己 via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div id="gmail-m_7292407719806235396contentDescription" style="line-height:1.5;text-align:justify">
            <div>I have tried stl-views-1.0.3.gdb,but it didn't work!I found it is a llvm implement,when I print the list variable,it shows like:<br></div><div><br></div>
<div><div>$81 = {</div><div>    <std::__1::__list_imp<LogBufferElement*, std::__1::allocator<LogBufferElement*> >> = {</div><div>    __end_ = {</div><div>    __prev_ = 0x7ee29b5940, </div><div>    __next_ = 0x7ee2821d40</div><div>    }, </div><div>    __size_alloc_ = {</div><div>         <std::__1::__compressed_pair_elem<unsigned long, 0, false>> = {</div><div>        __value_ = 0x106b</div><div>    }, </div><div>    <std::__1::__compressed_pair_elem<std::__1::allocator<std::__1::__list_node<LogBufferElement*, void*> >, 1, true>> = {</div><div>        <std::__1::allocator<std::__1::__list_node<LogBufferElement*, void*> >> = {<No data fields>}, <No data fields>}, <No data fields>}</div><div>  }, <No data fields>}</div></div><div><br></div><div>according to the code <a href="http://llvm.org/svn/llvm-project/libcxx/branchestemplate" target="_blank">http://llvm.org/svn/llvm-project/libcxx/branchestemplate</a>,I tride the following command,But it failed!</div><div><div>(gdb) p /x ((LogBuffer *)0x7ee280dc00).mLogElements.__end_.__next_.__value_ There is no member or method named _value. </div></div><div><br></div><div>Anybody help me?</div>

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