Question about accessing global data from a line function

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Dear expert,

   I am trying to access perl global variable ($data in this case) from
within a inline C function, but the "data" variable I used is not defined.
Any idea how to do it?

Thanks
Jin


$data = "this is a test";
test();

use Inline C => <<'END_OF_C_CODE';

void test() {
printf("here: %s\n", SvPV(data, PL_na));
}

END_OF_C_CODE

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<div dir=3D"ltr"><div>Dear expert,</div><div><br></div><div>=C2=A0 =C2=A0I =
am trying to access perl global variable ($data in this case) from within a=
 inline C function, but the &quot;data&quot; variable I used is not defined=
.</div><div>Any idea how to do it?</div><div><br></div><div>Thanks</div><di=
v>Jin</div><div><br></div><div><br></div><div><div><span style=3D"backgroun=
d-color:rgb(255,255,0)">$data</span> =3D &quot;this is a test&quot;;</div><=
div>test();</div><div><br></div><div>use Inline C =3D&gt; &lt;&lt;&#39;END_=
OF_C_CODE&#39;;</div><div><br></div><div>void test() {</div><div><span clas=
s=3D"gmail-Apple-tab-span" style=3D"white-space:pre">	</span>printf(&quot;h=
ere: %s\n&quot;, SvPV(<span style=3D"background-color:rgb(255,255,0)">data<=
/span>, PL_na));</div><div>}</div><div><br></div><div>END_OF_C_CODE</div><d=
iv><br></div></div></div>

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