<div dir="ltr"><div>Respected Sir,<br><br>I want clang to transform some specially written comments in C:<br><br>/*<br> @requires { x >= 0 }<br> @ensures { result = 0 }<br>*/<br>int reduce_to_zero (int x)<br>{<br> while (x != 0) {<br>
x = x - 1;<br> }<br> return x;<br>}<br><br>should be parsed as:<br><br>int reduce_to_zero (int x)<br>{<br> if( x >= 0 )<br> {<br> while (x != 0) {<br> x = x - 1;<br> }<br>
}<br> if( result = 0 )<br> return x;<br>}<br>Here the requires keyword in the comment serves as the pre-condition and ensures keyword serves as the post-condition for this function.<br>Could you please tell me how should I approach to this problem.<br>
<br>Thanks in advance<br></div>Arpit<br></div>