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[committed,wwwdocs] Add "Porting to GCC 14"

Message ID 20231030151030.47170-1-jwakely@redhat.com
State New
Headers show
Series [committed,wwwdocs] Add "Porting to GCC 14" | expand

Commit Message

Jonathan Wakely Oct. 30, 2023, 3:10 p.m. UTC 
Pushed to wwwdocs.

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+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>Porting to GCC 14</title>
+<link rel="stylesheet" type="text/css" href="https://gcc.gnu.org/gcc.css">
+</head>
+
+<body>
+<h1>Porting to GCC 14</h1>
+
+<p>
+The GCC 14 release series differs from previous GCC releases in
+<a href="changes.html">a number of ways</a>. Some of these are a result
+of bug fixing, and some old behaviors have been intentionally changed
+to support new standards, or relaxed in standards-conforming ways to
+facilitate compilation or run-time performance.
+</p>
+
+<p>
+Some of these changes are user visible and can cause grief when
+porting to GCC 14. This document is an effort to identify common issues
+and provide solutions. Let us know if you have suggestions for improvements!
+</p>
+
+<h2 id="cxx">C++ language issues</h2>
+
+<h3 id="header-dep-changes">Header dependency changes</h3>
+<p>Some C++ Standard Library headers have been changed to no longer include
+other headers that were being used internally by the library.
+As such, C++ programs that used standard library components without
+including the right headers will no longer compile.
+</p>
+<p>
+The following headers are used less widely in libstdc++ and may need to
+be included explicitly when compiling with GCC 14:
+</p>
+<ul>
+<li> <code>&lt;algorithm&gt;</code>
+  (for <code>std::copy_n</code>, <code>std::lower_bound</code>,
+  <code>std::remove</code>, <code>std::reverse</code>,
+  <code>std::sort</code> etc.)
+</li>
+</ul>
+
+<!-- <h2 id="fortran">Fortran language issues</h2> -->
+
+</body>
+</html>