A static local variables retains its value between the function call and the default value is 0. The following function will print 1 2 3 if called thrice.
<span class="kwd">void</span><span class="pln"> f</span><span class="pun">()</span> <span class="pun">{</span>
<span class="kwd">static</span> <span class="kwd">int</span><span class="pln"> i</span><span class="pun">;</span>
<span class="pun">++</span><span class="pln">i</span><span class="pun">;</span><span class="pln">
printf</span><span class="pun">(“%</span><span class="pln">d </span><span class="pun">“,</span><span class="pln">i</span><span class="pun">);</span>
<span class="pun">}</span>
If a global variable is static then its visibility is limited to the same source code.
