gcc-wwwdocs branch master updated. 76857f1aae9af9d04ea401004f29c988a2593140

gcc-wwwdocs branch master updated. 76857f1aae9af9d04ea401004f29c988a2593140

[Jonathan Wakely]

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commit 76857f1aae9af9d04ea401004f29c988a2593140
Author: Sam James <sam@gentoo.org>
Date:   Fri Oct 27 22:07:15 2023 +0100

    bugs: Mention -D_GLIBCXX_ASSERTIONS and -D_GLIBCXX_DEBUG
    
    These options both enable more checking within the C++ standard library
    and can expose errors in submitted code.
    
    -D_GLIBCXX_DEBUG is mentioned separately because while we want people to try it,
    it's not always feasible because it requires the whole program and any used
    libraries to also be built with it (as it breaks ABI).
    
    Signed-off-by: Sam James <sam@gentoo.org>

diff --git a/htdocs/bugs/index.html b/htdocs/bugs/index.html
index da3d4c0d..40355911 100644
--- a/htdocs/bugs/index.html
+++ b/htdocs/bugs/index.html
@@ -56,6 +56,14 @@ makes a difference, or if compiling with <code>-fsanitize=undefined</code>
 produces any run-time errors, then your code is probably not correct.
 </p>
 
+<p>We also ask that for C++ code, users test their programs with
+<code>-D_GLIBCXX_ASSERTIONS</code>. If you're able to rebuild the entire
+program (including any libraries it uses, because it changes ABI), please do try
+libstdc++'s <a href="https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode.html">debug mode</a>
+(<code>-D_GLIBCXX_DEBUG</code>) which enables more thorough checking in parts of
+the C++ standard library. If either of these fail, this is a strong indicator
+of an error in your code.</p>
+
 <h2>Summarized bug reporting instructions</h2>
 
 <p>After this summary, you'll find detailed instructions that explain

-----------------------------------------------------------------------

Summary of changes:
 htdocs/bugs/index.html | 8 ++++++++
 1 file changed, 8 insertions(+)


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