ZealOS/docs/Demo/CompileDemo.CC.html
2021-10-27 03:28:16 -04:00

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<a name="l1"></a><span class=cF1>F64</span><span class=cF0> global;
<a name="l2"></a>
<a name="l3"></a></span><span class=cF1>F64</span><span class=cF0> CompileDemo(</span><span class=cF1>U8</span><span class=cF0> *st)
<a name="l4"></a>{
<a name="l5"></a> </span><span class=cF9>I64</span><span class=cF0> type;
<a name="l6"></a> </span><span class=cF1>U8</span><span class=cF0> *machine_code;
<a name="l7"></a> </span><span class=cF9>CCompCtrl</span><span class=cF0> *cc = </span><span class=cF5>CompCtrlNew</span><span class=cF0>(st, </span><span class=cF3>CCF_DONT_FREE_BUF</span><span class=cF0>);
<a name="l8"></a> </span><span class=cF1>F64</span><span class=cF0> res = </span><span class=cFE>0</span><span class=cF0>;
<a name="l9"></a>
<a name="l10"></a> </span><span class=cF5>Lex</span><span class=cF0>(cc); </span><span class=cF2>//Gotta get it started</span><span class=cF0>
<a name="l11"></a> </span><span class=cF6>&quot;Compile \&quot;%s\&quot;\n&quot;</span><span class=cF0>, st;
<a name="l12"></a> </span><span class=cF1>do</span><span class=cF0>
<a name="l13"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l14"></a> </span><span class=cF1>if</span><span class=cF0> (machine_code = </span><span class=cF5>LexExpression2Bin</span><span class=cF7>(</span><span class=cF0>cc, &amp;type</span><span class=cF7>)</span><span class=cF0>)
<a name="l15"></a> {
<a name="l16"></a> </span><span class=cF1>if</span><span class=cF0> (type != </span><span class=cF3>RT_F64</span><span class=cF0>)
<a name="l17"></a> res = </span><span class=cF5>ToF64</span><span class=cF0>(</span><span class=cF5>Call</span><span class=cF7>(</span><span class=cF0>machine_code</span><span class=cF7>)</span><span class=cF0>);
<a name="l18"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l19"></a> res = </span><span class=cF5>Call</span><span class=cF0>(machine_code)(</span><span class=cF1>F64</span><span class=cF0>);
<a name="l20"></a> </span><span class=cF5>Free</span><span class=cF0>(machine_code);
<a name="l21"></a> }
<a name="l22"></a> </span><span class=cF6>&quot;res=%9.4f\n&quot;</span><span class=cF0>, res;
<a name="l23"></a> </span><span class=cF1>if</span><span class=cF0> (cc-&gt;token == </span><span class=cF6>';'</span><span class=cF0>)
<a name="l24"></a> </span><span class=cF5>Lex</span><span class=cF0>(cc);
<a name="l25"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l26"></a> </span><span class=cF1>while</span><span class=cF0> (cc-&gt;token != </span><span class=cF3>TK_EOF</span><span class=cF0>); </span><span class=cF2>//end of file?</span><span class=cF0>
<a name="l27"></a>
<a name="l28"></a> </span><span class=cF5>CompCtrlDel</span><span class=cF0>(cc);
<a name="l29"></a>
<a name="l30"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l31"></a>}
<a name="l32"></a>
<a name="l33"></a>CompileDemo(</span><span class=cF6>&quot;2 + Cos(pi)&quot;</span><span class=cF0>);
<a name="l34"></a>CompileDemo(</span><span class=cF6>&quot;1; 2 + 4&quot;</span><span class=cF0>);
<a name="l35"></a>CompileDemo(</span><span class=cF6>&quot;global = 1; global * 2; global / 3; Sin(global)&quot;</span><span class=cF0>);
<a name="l36"></a>
<a name="l37"></a></span><span class=cF2>//This is just like you typed-it on</span><span class=cF0>
<a name="l38"></a></span><span class=cF2>//the cmd line.</span><span class=cF0>
<a name="l39"></a></span><span class=cF5>ExePrint</span><span class=cF0>(
<a name="l40"></a></span><span class=cF6>&quot;I64 i;&quot;</span><span class=cF0>
<a name="l41"></a></span><span class=cF6>&quot;for (i = 0; i &lt; 10; i++) &quot;</span><span class=cF0>
<a name="l42"></a></span><span class=cF6>&quot; \&quot;%%d\n\&quot;, i;&quot;</span><span class=cF0>
<a name="l43"></a>);
</span></pre></body>
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