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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Debug mode status page doesn't contain how to enable debug mode"
href="http://llvm.org/bugs/show_bug.cgi?id=16837">16837</a>
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<th>Summary</th>
<td>Debug mode status page doesn't contain how to enable debug mode
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>3.2
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>hhinnant@apple.com
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<th>Reporter</th>
<td>gonzalobg88@gmail.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<pre>The debug mode status page doesn't contain how to enable debug mode... !
<a href="http://libcxx.llvm.org/debug_mode.html">http://libcxx.llvm.org/debug_mode.html</a>
The page should at least be extended with:
"To enable libc++'s debug mode, define the macro XXXXXXX.".
Extra info:
Howard wrote in September 2011 (see
<a href="http://lists.cs.uiuc.edu/pipermail/cfe-dev/2011-September/017177.html">http://lists.cs.uiuc.edu/pipermail/cfe-dev/2011-September/017177.html</a> ):
"I've checked in an experimental implementation of this.
-D_LIBCPP_DEBUG2
gets you the "standard" debugging mode, which includes checking for iterator
invalidation.
-D_LIBCPP_DEBUG2=0
gets you "debug lite". This only checks things that are really cheap such as
those you mention.
I've left the door open for:
-D_LIBCPP_DEBUG2=2
which would make even more expensive checks (e.g. check the invariants of a
red/black tree)."
I don't know if this is still up to date. Furthermore, Google tells me that:
- the macro _LIBCPP_DEBUG is used for the old debug mode (deprecated? does it
still work?)
- the macro _LIBCPP_DEBUG2 is used for the new debug mode (the one documented
in the page?)
Maybe these two should also be documented on the page.</pre>
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