exception by calling the <tt>C++</tt> exception throwing methods, but may
use the <tt>unwind</tt> instruction.</dd>
+ <dt><tt><b><a name="returns_twice">returns_twice</a></b></tt></dt>
+ <dd>This attribute indicates that this function can return twice. The
+ C <code>setjmp</code> is an example of such a function. The compiler
+ disables some optimizations (like tail calls) in the caller of these
+ functions.</dd>
+
<dt><tt><b><a name="ssp">ssp</a></b></tt></dt>
<dd>This attribute indicates that the function should emit a stack smashing
protector. It is in the form of a "canary"—a random value placed on
show that no exceptions passes by it. This is normally the case for
the ELF x86-64 abi, but it can be disabled for some compilation
units.</dd>
-
- <dt><tt><b><a name="returns_twice">returns_twice</a></b></tt></dt>
- <dd>This attribute indicates that this function can return
- twice. The C <code>setjmp</code> is an example of such a function.
- The compiler disables some optimizations (like tail calls) in the caller of
- these functions.</dd>
</dl>
</div>