row">&#45;&gt;</span></span> bool)</span> <span class="arrow">&#45;&gt;</span></span> <span>exn <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p>Reraise the exception if f returns true. Always reraise immediately after catching the exception, otherwise the backtrace can be wrong.</p></div></div></div></body></html>