title: Mac OS X equivalent of SecureZeroMemory / RtlSecureZeroMemory?
body: <p>Is there a Mac OS X equivalent of <a href="http://msdn.microsoft.com/en-us/library/windows/hardware/ff562768.aspx" rel="noreferrer"><code>RtlSecureZeroMemory</code></a> / <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa366877.aspx" rel="noreferrer"><code>SecureZeroMemory</code></a>, a function which zeroes a block of memory, but the call will not be optimized away by the compiler?</p>