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<div id=Content><div class="CFunction"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="gdFree"></a>gdFree</h1><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>void gdFree (</td><td class="PType prettyprint " nowrap>void </td><td class="PParameterPrefix prettyprint " nowrap>*</td><td class="PParameter prettyprint " nowrap>ptr</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Frees memory that has been allocated by libgd functions.</p><p>Unless more specialized functions exists (for instance, <a href="gd-c.html#gdImageDestroy" class=LFunction id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">gdImageDestroy</a>), all memory that has been allocated by public libgd functions has to be freed by calling <a href="#gdFree" class=LFunction id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">gdFree</a>, and not by free(3), because libgd internally doesn’t use alloc(3) and friends but rather its own allocation functions, which are, however, not publicly available.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>ptr</td><td class=CDLDescription>Pointer to the memory space to free. If it is NULL, no operation is performed.</td></tr></table><h4 class=CHeading>Returns</h4><p>Nothing.</p></div></div></div>
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<div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>void gdImageDestroy (</td><td class="PType prettyprint " nowrap>gdImagePtr </td><td class="PParameter prettyprint " nowrap>im</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>gdImageDestroy is used to free the memory associated with an image. </div></div><div class=CToolTip id="tt2"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>void gdFree (</td><td class="PType prettyprint " nowrap>void </td><td class="PParameterPrefix prettyprint " nowrap>*</td><td class="PParameter prettyprint " nowrap>ptr</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Frees memory that has been allocated by libgd functions.</div></div><!--END_ND_TOOLTIPS-->
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