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Justin Ethier 436a796118 New C API docs
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<h2 class="memtitle"><span class="permalink"><a href="#gadc0228b3e0f11950f0647be264d12c69">&#9670;&nbsp;</a></span>alloc_string</h2>
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<td class="memname">#define alloc_string</td>
<td>(</td>
<td class="paramtype">&#160;</td>
<td class="paramname">_data, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">&#160;</td>
<td class="paramname">_s, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">&#160;</td>
<td class="paramname">_len, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">&#160;</td>
<td class="paramname">_num_cp&#160;</td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<b>Value:</b><div class="fragment"><div class="line"> <span class="keywordflow">if</span> (_len &gt;= <a class="code" href="group__gc__minor_ga74eb6f5e63c29e2e1c6fb51e2f3cd02f.html#ga74eb6f5e63c29e2e1c6fb51e2f3cd02f">MAX_STACK_OBJ</a>) { \</div>
<div class="line"> int heap_grown; \</div>
<div class="line"> _s = <a class="code" href="group__gc__major_ga976021ebdbed6eb538d78c744c1ef931.html#ga976021ebdbed6eb538d78c744c1ef931">gc_alloc</a>(((<a class="code" href="structgc__thread__data__t.html">gc_thread_data</a> *)data)-&gt;heap, \</div>
<div class="line"> <span class="keyword">sizeof</span>(<a class="code" href="structstring__type.html">string_type</a>) + _len + 1, \</div>
<div class="line"> <a class="code" href="group__objects_ga6d259e87f479319faf0c43f2fbc3b98f.html#ga6d259e87f479319faf0c43f2fbc3b98f">boolean_f</a>, <span class="comment">/* OK to populate manually over here */</span> \</div>
<div class="line"> (<a class="code" href="structgc__thread__data__t.html">gc_thread_data</a> *)data, \</div>
<div class="line"> &amp;heap_grown); \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;hdr.mark = ((<a class="code" href="structgc__thread__data__t.html">gc_thread_data</a> *)data)-&gt;gc_alloc_color; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;hdr.grayed = 0; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;hdr.immutable = 0; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;tag = <a class="code" href="group__objects_ga3eff9ebd9f241e211e00b991e2ac60fc.html#gga3eff9ebd9f241e211e00b991e2ac60fca01ef7df0dea0750732937733ec61af00">string_tag</a>; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;len = _len; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;num_cp = _num_cp; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *) _s)-&gt;str = (((<span class="keywordtype">char</span> *)_s) + <span class="keyword">sizeof</span>(<a class="code" href="structstring__type.html">string_type</a>)); \</div>
<div class="line"> } <span class="keywordflow">else</span> { \</div>
<div class="line"> _s = alloca(<span class="keyword">sizeof</span>(<a class="code" href="structstring__type.html">string_type</a>)); \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;hdr.mark = <a class="code" href="group__gc__major_ga4074eefce64a43efc40de89bc9595c9b.html#ga4074eefce64a43efc40de89bc9595c9b">gc_color_red</a>; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;hdr.grayed = 0; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;hdr.immutable = 0; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;tag = <a class="code" href="group__objects_ga3eff9ebd9f241e211e00b991e2ac60fc.html#gga3eff9ebd9f241e211e00b991e2ac60fca01ef7df0dea0750732937733ec61af00">string_tag</a>; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;len = _len; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;num_cp = _num_cp; \</div>
<div class="line"> ((<a class="code" href="structstring__type.html">string_type</a> *)_s)-&gt;str = alloca(<span class="keyword">sizeof</span>(<span class="keywordtype">char</span>) * (_len + 1)); \</div>
<div class="line"> }</div>
</div><!-- fragment --><p>Allocate a new string, either on the stack or heap depending upon size </p>
</div>
</div>
</td>
</tr>
</table>
</div><!-- contents -->
<div class="ttc" id="agroup__gc__major_ga976021ebdbed6eb538d78c744c1ef931_html_ga976021ebdbed6eb538d78c744c1ef931"><div class="ttname"><a href="group__gc__major_ga976021ebdbed6eb538d78c744c1ef931.html#ga976021ebdbed6eb538d78c744c1ef931">gc_alloc</a></div><div class="ttdeci">void * gc_alloc(gc_heap_root *h, size_t size, char *obj, gc_thread_data *thd, int *heap_grown)</div><div class="ttdoc">Allocate memory on the heap for an object.</div><div class="ttdef"><b>Definition:</b> gc.c:1360</div></div>
<div class="ttc" id="agroup__gc__major_ga4074eefce64a43efc40de89bc9595c9b_html_ga4074eefce64a43efc40de89bc9595c9b"><div class="ttname"><a href="group__gc__major_ga4074eefce64a43efc40de89bc9595c9b.html#ga4074eefce64a43efc40de89bc9595c9b">gc_color_red</a></div><div class="ttdeci">#define gc_color_red</div><div class="ttdef"><b>Definition:</b> types.h:297</div></div>
<div class="ttc" id="astructgc__thread__data__t_html"><div class="ttname"><a href="structgc__thread__data__t.html">gc_thread_data_t</a></div><div class="ttdef"><b>Definition:</b> types.h:322</div></div>
<div class="ttc" id="astructstring__type_html"><div class="ttname"><a href="structstring__type.html">string_type</a></div><div class="ttdoc">The string type.</div><div class="ttdef"><b>Definition:</b> types.h:933</div></div>
<div class="ttc" id="agroup__objects_ga3eff9ebd9f241e211e00b991e2ac60fc_html_gga3eff9ebd9f241e211e00b991e2ac60fca01ef7df0dea0750732937733ec61af00"><div class="ttname"><a href="group__objects_ga3eff9ebd9f241e211e00b991e2ac60fc.html#gga3eff9ebd9f241e211e00b991e2ac60fca01ef7df0dea0750732937733ec61af00">string_tag</a></div><div class="ttdeci">@ string_tag</div><div class="ttdef"><b>Definition:</b> types.h:67</div></div>
<div class="ttc" id="agroup__gc__minor_ga74eb6f5e63c29e2e1c6fb51e2f3cd02f_html_ga74eb6f5e63c29e2e1c6fb51e2f3cd02f"><div class="ttname"><a href="group__gc__minor_ga74eb6f5e63c29e2e1c6fb51e2f3cd02f.html#ga74eb6f5e63c29e2e1c6fb51e2f3cd02f">MAX_STACK_OBJ</a></div><div class="ttdeci">#define MAX_STACK_OBJ</div><div class="ttdef"><b>Definition:</b> types.h:513</div></div>
<div class="ttc" id="agroup__objects_ga6d259e87f479319faf0c43f2fbc3b98f_html_ga6d259e87f479319faf0c43f2fbc3b98f"><div class="ttname"><a href="group__objects_ga6d259e87f479319faf0c43f2fbc3b98f.html#ga6d259e87f479319faf0c43f2fbc3b98f">boolean_f</a></div><div class="ttdeci">const object boolean_f</div><div class="ttdef"><b>Definition:</b> runtime.c:397</div></div>
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