I also took the liberty of rewriting the list of new command-line
options to be less repetitive.
OK?
Index: htdocs/gcc-6/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-6/changes.html,v
retrieving revision 1.26
diff -u -r1.26 changes.html
--- htdocs/gcc-6/changes.html 4 Sep 2015 09:33:28 -0000 1.26
+++ htdocs/gcc-6/changes.html 8 Sep 2015 17:12:23 -0000
@@ -43,18 +43,26 @@
oldval __attribute__ ((deprecated ("too old")))
};
</pre></blockquote></li>
- <li>A new command-line option <code>-Wshift-negative-value</code> has been
- added for the C and C++ compilers, which warns about left shifting
+<li>Initial support for precise diagnostic locations within strings:
+<blockquote><pre>
+<b>format-strings.c:3:14:</b> <b style='color:magenta'>warning:</b>
field width specifier <b>'*'</b> expects a matching <b>'int'</b>
argument [-Wformat=]
+ printf("%*d");
+ <b style='color:lime'>^</b>
+</pre></blockquote></li>
+
+ <li>New command-line options have been added for the C and C++ compilers:
+<ul>
+ <li><code>-Wshift-negative-value</code> warns about left shifting
a negative value.</li>
- <li>A new command-line option <code>-Wshift-overflow</code> has been
- added for the C and C++ compilers, which warns about left shift
+ <li><code>-Wshift-overflow</code> warns about left shift
overflows. <code>-Wshift-overflow=2</code> also warns about
left-shifting 1 into the sign bit. This warning is enabled by
default.</li>
- <li>A new command-line option <code>-Wtautological-compare</code> has been
- added for the C and C++ compilers, which warns if a self-comparison
+ <li><code>-Wtautological-compare</code> warns if a self-comparison
always evaluates to true or false. This warning is enabled by
<code>-Wall</code>.</li>
+ <li><code>-Wnull-dereference</code> warns if the compiler detects
paths that trigger erroneous or undefined behavior due to
dereferencing a null pointer. This option is only active when
<code>-fdelete-null-pointer-checks</code> is active, which is enabled
by optimizations in most targets. The precision of the warnings
depends on the optimization options used.</li>
+</ul></li>
</ul>
<h3 id="c">C</h3>
