https://wiki.kram.nz/index.php?action=history&feed=atom&title=SE250%3Alab-9%3Aapra102 2026-04-24T12:10:02Z Revision history for this page on the wiki MediaWiki 1.45.3 https://wiki.kram.nz/index.php?title=SE250:lab-9:apra102&diff=8500&oldid=prev 2008-11-03T05:20:34Z

<p>2 revision(s)</p> <p><b>New page</b></p><div>==Lab9==<br /> It took me a while to understand what is going on here. I really have no idea on any of the options.<br /> I read the whole hand out for some time and decided to do Option2, in that atleast i know whats it is on about. I downloaded the .c and .h files from the website and started doing it. <br /> I asked the tutor what am i suppose to do here? She gave me some hints and I get started to create the &#039;&#039;&#039;tree&#039;&#039;&#039; with the &#039;&#039;&#039;if&#039;&#039;&#039; expecting &#039;&#039;&#039;then&#039;&#039;&#039; and &#039;&#039;&#039;else&#039;&#039;&#039; following that. I tried coding for the tree. Initially i declared the current token as &#039;&#039;&#039;n&#039;&#039;&#039; and started continuing with that, but it dint work it keep saying that undclared identifiers, i cannot figure them out in this time, my code is as following:<br /> <br /> Tree* Stmt( TokenStream* tokens ) {<br /> Token n = current(tokens);<br /> advance (tokens); <br /> <br /> if(eqToken(n, TOK_IF)){<br /> Tree* t = Exp(tokens,0);<br /> Tree* thenS;<br /> Tree* elseS;<br /> <br /> expect(tokens, TOK_THEN);<br /> Tree* t1 = Stmt(thenS);<br /> <br /> expect (tokens, TOK_ELSE);<br /> Tree* t2 = Stmt(elseS);<br /> }<br /> return mkNode3(TOK_IF, t, t1, t2);<br /> <br /> }</div>

Mark