Re: [wwwdocs] changes.html - document new warning options

[Aldy Hernandez]

On 01/24/2017 03:07 PM, Martin Sebor wrote:

Hi Martin.
Thank you for taking care of this.

+    <li><p>The <code>-Walloca-larger-than=<i>size</i></code> option detects
+       calls to the <code>alloca</code> function whose argument may exceed
+       the specified <code><i>size</i></code>.
+       <code>-Walloca-larger-than</code> is not included in either
+       <code>-Wall</code> or <code>-Wextra</code> and must be explicitly
+       enabled.</p>

You should probably document that we warn, not just on arguments that 
exceed a specific threshold, but arguments that are unbounded or unknown 
at compile time:

foo (size_t n)
{
        ...
        p = alloca(n);
        ...
}

Thanks.
Aldy