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* gcc-wwwdocs branch master updated. 6ffde10eba0811d1223eaba7e2a8daefe26276aa
@ 2020-11-04 12:58 Jonathan Wakely
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From: Jonathan Wakely @ 2020-11-04 12:58 UTC (permalink / raw)
To: gcc-cvs-wwwdocs
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commit 6ffde10eba0811d1223eaba7e2a8daefe26276aa
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Wed Nov 4 12:58:19 2020 +0000
Document std::istreambuf_iterator change in GCC 10 [PR 92285]
diff --git a/htdocs/gcc-10/changes.html b/htdocs/gcc-10/changes.html
index 759e4fd7..d40a633c 100644
--- a/htdocs/gcc-10/changes.html
+++ b/htdocs/gcc-10/changes.html
@@ -65,6 +65,12 @@ You may also want to check out our
Language (HSAIL) has been deprecated and will likely be removed in
a future release.
</li>
+ <li>
+ The type of the <code>std::iterator</code> base class of
+ <code>std::istreambuf_iterator</code> was changed in C++98 mode
+ to be consistent with C++11 and later standards.
+ See the <a href="#iterator_base">libstdc++ notes below</a> for more details.
+ </li>
</ul>
@@ -504,6 +510,18 @@ int get_naïve_pi() {
<li>
Reduced header dependencies, leading to faster compilation for some code.
</li>
+ <li>
+ <a id="iterator_base">The <code>std::iterator</code></a> base class of
+ <code>std::istreambuf_iterator</code> was changed in C++98 mode
+ to be consistent with C++11 and later standards.
+ This is expected to have no noticeable effect except in the unlikely case
+ of a class which has potentially overlapping subobjects of type
+ <code>std::istreambuf_iterator<C></code> and another iterator type
+ with a <code>std::iterator<input_iterator_tag, C, ...></code>
+ base class. The layout of such a type might change when compiled as C++98.
+ <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92285">Bug 92285</a>
+ has more details and concrete examples.
+ </li>
</ul>
<h3 id="d">D</h3>
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-10/changes.html | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
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2020-11-04 12:58 gcc-wwwdocs branch master updated. 6ffde10eba0811d1223eaba7e2a8daefe26276aa Jonathan Wakely
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