108 lines
7.7 KiB
HTML
Executable File
108 lines
7.7 KiB
HTML
Executable File
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<a name="l1"></a><span class=cF2>//Demonstrates dynamic initialization of vars.</span><span class=cF0>
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<a name="l2"></a></span><span class=cF2>//Static vars are, essentually, global vars.</span><span class=cF0>
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<a name="l3"></a>
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<a name="l4"></a></span><span class=cF1>class</span><span class=cF0> Test
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<a name="l5"></a>{
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<a name="l6"></a> </span><span class=cF9>I32</span><span class=cF0> time;
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<a name="l7"></a> </span><span class=cF1>U8</span><span class=cF0> name[8];
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<a name="l8"></a>};
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<a name="l9"></a>
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<a name="l10"></a>Test g1[]={
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<a name="l11"></a> </span><span class=cF7>{</span><span class=cF0>10,</span><span class=cF6>"Name1"</span><span class=cF7>}</span><span class=cF0>,
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<a name="l12"></a> </span><span class=cF7>{</span><span class=cF0>(</span><span class=cF5>tS</span><span class=cF0>%10.0)*100,</span><span class=cF6>"Name2"</span><span class=cF7>}</span><span class=cF0>, </span><span class=cF2>//Dynamic initialization</span><span class=cF0>
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<a name="l13"></a> </span><span class=cF7>{</span><span class=cF0>30,</span><span class=cF6>"Name3"</span><span class=cF7>}</span><span class=cF0>
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<a name="l14"></a>};
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<a name="l15"></a>
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<a name="l16"></a></span><span class=cF5>D</span><span class=cF0>(g1,</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>g1</span><span class=cF7>)</span><span class=cF0>);
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<a name="l17"></a></span><span class=cF6>"Time 1:%d\n"</span><span class=cF0>,g1[1].time;
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<a name="l18"></a>
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<a name="l19"></a></span><span class=cF1>U0</span><span class=cF0> Main1()
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<a name="l20"></a>{
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<a name="l21"></a> </span><span class=cF1>static</span><span class=cF0> Test s1[]=</span><span class=cF7>{</span><span class=cF0>
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<a name="l22"></a> {10,</span><span class=cF6>"Static1"</span><span class=cF0>},
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<a name="l23"></a> {(</span><span class=cF5>tS</span><span class=cF0>%10.0)*100,</span><span class=cF6>"Static2"</span><span class=cF0>}, </span><span class=cF2>//Dynamic initialization</span><span class=cF0>
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<a name="l24"></a> {30,</span><span class=cF6>"Static3"</span><span class=cF0>}
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<a name="l25"></a> </span><span class=cF7>}</span><span class=cF0>;
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<a name="l26"></a> </span><span class=cF5>D</span><span class=cF0>(s1,</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>s1</span><span class=cF7>)</span><span class=cF0>);
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<a name="l27"></a> </span><span class=cF6>"Time 2:%d\n"</span><span class=cF0>,s1[1].time;
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<a name="l28"></a>}
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<a name="l29"></a>
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<a name="l30"></a>Main1;
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<a name="l31"></a>
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<a name="l32"></a></span><span class=cF2>/*Now, we'll use the data heap glbl option</span><span class=cF0>
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<a name="l33"></a></span><span class=cF2>to force global vars onto the data heap.</span><span class=cF0>
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<a name="l34"></a>
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<a name="l35"></a></span><span class=cF2>You can turn the data heap flag</span><span class=cF0>
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<a name="l36"></a></span><span class=cF2>on and off within your programs, leaving</span><span class=cF0>
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<a name="l37"></a></span><span class=cF2>ones which need initialization on the code heap.</span><span class=cF0>
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<a name="l38"></a>
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<a name="l39"></a></span><span class=cF2>You can't dynamically initialize data heap</span><span class=cF0>
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<a name="l40"></a></span><span class=cF2>glbls--they are consts. This might be a silly</span><span class=cF0>
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<a name="l41"></a></span><span class=cF2>point, but might res in odd differences, perhaps</span><span class=cF0>
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<a name="l42"></a></span><span class=cF2>from the order things are evaluated.</span><span class=cF0>
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<a name="l43"></a>
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<a name="l44"></a></span><span class=cF2>Data heap glbls are good for AOT modules</span><span class=cF0>
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<a name="l45"></a></span><span class=cF2>because they don't take-up room in the .BIN.Z file.</span><span class=cF0>
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<a name="l46"></a></span><span class=cF2>*/</span><span class=cF0>
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<a name="l47"></a>
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<a name="l48"></a>#</span><span class=cF1>ifjit</span><span class=cF0>
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<a name="l49"></a>#</span><span class=cF1>exe</span><span class=cF0> {</span><span class=cF5>Option</span><span class=cF0>(</span><span class=cF3>OPTf_GLBLS_ON_DATA_HEAP</span><span class=cF0>,</span><span class=cF3>ON</span><span class=cF0>);};
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<a name="l50"></a>
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<a name="l51"></a>Test g2[]={
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<a name="l52"></a> </span><span class=cF7>{</span><span class=cF0>10,</span><span class=cF6>"name1"</span><span class=cF7>}</span><span class=cF0>,
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<a name="l53"></a> </span><span class=cF7>{</span><span class=cF0>(</span><span class=cF5>tS</span><span class=cF0>%10.0)*100,</span><span class=cF6>"name2"</span><span class=cF7>}</span><span class=cF0>, </span><span class=cF2>//No dynamic initialization--cvted to const</span><span class=cF0>
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<a name="l54"></a> </span><span class=cF7>{</span><span class=cF0>30,</span><span class=cF6>"name3"</span><span class=cF7>}</span><span class=cF0>
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<a name="l55"></a>};
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<a name="l56"></a>
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<a name="l57"></a></span><span class=cF5>D</span><span class=cF0>(g2,</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>g2</span><span class=cF7>)</span><span class=cF0>);
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<a name="l58"></a></span><span class=cF6>"Time 3:%d\n"</span><span class=cF0>,g2[1].time;
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<a name="l59"></a>
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<a name="l60"></a></span><span class=cF1>U0</span><span class=cF0> Main2()
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<a name="l61"></a>{
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<a name="l62"></a> </span><span class=cF1>static</span><span class=cF0> Test s2[]=</span><span class=cF7>{</span><span class=cF0>
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<a name="l63"></a> {10,</span><span class=cF6>"static1"</span><span class=cF0>},
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<a name="l64"></a> {(</span><span class=cF5>tS</span><span class=cF0>%10.0)*100,</span><span class=cF6>"static2"</span><span class=cF0>}, </span><span class=cF2>//No dynamic initialization--cvted to const</span><span class=cF0>
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<a name="l65"></a> {30,</span><span class=cF6>"static3"</span><span class=cF0>}
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<a name="l66"></a> </span><span class=cF7>}</span><span class=cF0>;
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<a name="l67"></a> </span><span class=cF5>D</span><span class=cF0>(s2,</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>s2</span><span class=cF7>)</span><span class=cF0>);
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<a name="l68"></a> </span><span class=cF6>"Time 4:%d\n"</span><span class=cF0>,s2[1].time;
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<a name="l69"></a>}
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<a name="l70"></a>
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<a name="l71"></a>Main2;
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<a name="l72"></a>
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<a name="l73"></a>#</span><span class=cF1>exe</span><span class=cF0> {</span><span class=cF5>Option</span><span class=cF0>(</span><span class=cF3>OPTf_GLBLS_ON_DATA_HEAP</span><span class=cF0>,</span><span class=cF3>ON</span><span class=cF0>);};
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<a name="l74"></a>#</span><span class=cF1>endif</span><span class=cF0>
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<a name="l75"></a>
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<a name="l76"></a></span><span class=cF6>'\n'</span><span class=cF0>;
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</span></pre></body>
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