gcc-wwwdocs branch master updated. 081a380b5e869dfb38bd2cda860d1400296df286

[Jeff Law <law@sourceware.org>]

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- Log -----------------------------------------------------------------
commit 081a380b5e869dfb38bd2cda860d1400296df286
Author: Jeff Law <law@redhat.com>
Date:   Tue Sep 15 09:34:40 2020 -0600

    Notes on ordered comparisons, dynamic exceptions and comparison objects

diff --git a/htdocs/gcc-11/porting_to.html b/htdocs/gcc-11/porting_to.html
index 5db00734..ee7e91d8 100644
--- a/htdocs/gcc-11/porting_to.html
+++ b/htdocs/gcc-11/porting_to.html
@@ -66,6 +66,22 @@ than the other, so it's ambiguous.</p>
 <p>The new behavior can be disabled independently of other C++17 features with
 <code>-fno-new-ttp-matching</code>.</p>
 
+<h3 id="Ordered pointer comparison with integer">Ordered pointer comparison with integer</h3>
+<p>
+GCC 11 now issues a diagnostic for ordered comparisons of pointers against constant
+integers.  Commonly this is an ordered comparison against NULL or 0.  These should be
+equality comparisons, not ordered comparisons.
+</p>
+
+<h3 id="Dynamic Exception Specifications</h3>
+<p>
+GCC 11 defaults to C++17 which does not allow dynamic exception specifications.
+</p>
+
+<h3 id="Comparison Functions</h3>
+<p>
+GCC 11 now enforces that comparison objects be invocable as const.
+
 <!--
 <h2 id="fortran">Fortran language issues</h2>
 -->

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

Summary of changes:
 htdocs/gcc-11/porting_to.html | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)


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