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17 <code class="code"><span class="keyword">let</span>&nbsp;signal_get&nbsp;s1&nbsp;s2&nbsp;=&nbsp;<br>
18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;f1&nbsp;=&nbsp;frequency&nbsp;s1&nbsp;<span class="keyword">in</span><br>
19 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;f2&nbsp;=&nbsp;frequency&nbsp;s2&nbsp;<span class="keyword">in</span><br>
20 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;new_signal&nbsp;=&nbsp;<span class="keyword">fun</span>&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<br>
21 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;temp1&nbsp;=&nbsp;(signal_fun&nbsp;s1)&nbsp;t&nbsp;<span class="keyword">in</span><br>
22 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;temp2&nbsp;=&nbsp;(signal_fun&nbsp;s2)&nbsp;t&nbsp;<span class="keyword">in</span><br>
23 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">match</span>&nbsp;temp1&nbsp;<span class="keyword">with</span><br>
24 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">Vec</span>&nbsp;(size1,&nbsp;vec1)&nbsp;<span class="keywordsign">-&gt;</span><br>
25 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(<br>
26 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">match</span>&nbsp;temp2&nbsp;<span class="keyword">with</span><br>
27 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">N</span>&nbsp;i&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;vec1&nbsp;i<br>
28 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">R</span>&nbsp;f&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<br>
29 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;raise&nbsp;(<span class="constructor">Signal_operation</span>&nbsp;<span class="string">"Get:&nbsp;second&nbsp;input&nbsp;signal&nbsp;should&nbsp;be&nbsp;int."</span>)<br>
30 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">Vec</span>&nbsp;(size2,&nbsp;vec2)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<br>
31 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;raise&nbsp;(<span class="constructor">Signal_operation</span>&nbsp;<span class="string">"Get:&nbsp;second&nbsp;input&nbsp;signal&nbsp;should&nbsp;be&nbsp;int."</span>)<br>
32 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">Zero</span>&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;vec1&nbsp;0<br>
33 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span><span class="constructor">W</span>&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<br>
34 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;raise&nbsp;(<span class="constructor">Signal_operation</span>&nbsp;<span class="string">"Get:&nbsp;second&nbsp;input&nbsp;signal&nbsp;should&nbsp;be&nbsp;int."</span>)<br>
35 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)<br>
36 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>_&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;raise&nbsp;(<span class="constructor">Signal_operation</span>&nbsp;<span class="string">"Get:&nbsp;first&nbsp;input&nbsp;signal&nbsp;should&nbsp;be&nbsp;vector."</span>)<br>
37 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">in</span><br>
38 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">if</span>&nbsp;f1&nbsp;=&nbsp;f2&nbsp;<span class="keywordsign">||</span>&nbsp;f2&nbsp;=&nbsp;0&nbsp;<span class="keyword">then</span>&nbsp;(f1,&nbsp;new_signal)<br>
39 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">else</span>&nbsp;<span class="keyword">if</span>&nbsp;f1&nbsp;=&nbsp;0&nbsp;<span class="keyword">then</span>&nbsp;(f2,&nbsp;new_signal)<br>
40 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">else</span>&nbsp;raise&nbsp;(<span class="constructor">Signal_operation</span>&nbsp;<span class="string">"frequency&nbsp;not&nbsp;matched&nbsp;in&nbsp;signal_get."</span>)</code></body></html>