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gerrit-public.fairphone.software / platform / external / grpc-grpc / 68f4e0f6abc6bb99ff334542d5b5003edc3e651e / . / doc / ref / core.internal / html / useful_8h.html
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82 <ul>
83<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_9d7a14d6d9adcbe4c35dbdb88d867e2e.html">grpc</a></li><li class="navelem"><a class="el" href="dir_cad3142e04109052413f2d2a2d1813b0.html">support</a></li> </ul>
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88<a href="#define-members">Macros</a> </div>
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90<div class="title">useful.h File Reference</div> </div>
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92<div class="contents">
93
94<p><a href="useful_8h_source.html">Go to the source code of this file.</a></p>
95<table class="memberdecls">
96<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
97Macros</h2></td></tr>
98<tr class="memitem:a298322c952526928cf8dbc7aaba7b84d"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a298322c952526928cf8dbc7aaba7b84d">GPR_MIN</a>(a, b)&#160;&#160;&#160;((a) &lt; (b) ? (a) : (b))</td></tr>
99<tr class="separator:a298322c952526928cf8dbc7aaba7b84d"><td class="memSeparator" colspan="2">&#160;</td></tr>
100<tr class="memitem:af50c518bb1183da84adb7d8a86cd568a"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#af50c518bb1183da84adb7d8a86cd568a">GPR_MAX</a>(a, b)&#160;&#160;&#160;((a) &gt; (b) ? (a) : (b))</td></tr>
101<tr class="separator:af50c518bb1183da84adb7d8a86cd568a"><td class="memSeparator" colspan="2">&#160;</td></tr>
102<tr class="memitem:ac974b8c13ee716193e0ee30d9513672c"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#ac974b8c13ee716193e0ee30d9513672c">GPR_CLAMP</a>(a, min, max)&#160;&#160;&#160;((a) &lt; (min) ? (min) : (a) &gt; (max) ? (max) : (a))</td></tr>
103<tr class="separator:ac974b8c13ee716193e0ee30d9513672c"><td class="memSeparator" colspan="2">&#160;</td></tr>
104<tr class="memitem:a6f7a8aba8e044f6b20fc8a7560f28f85"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a6f7a8aba8e044f6b20fc8a7560f28f85">GPR_ROTL</a>(x, n)&#160;&#160;&#160;(((x) &lt;&lt; (n)) | ((x) &gt;&gt; (sizeof(x) * 8 - (n))))</td></tr>
105<tr class="separator:a6f7a8aba8e044f6b20fc8a7560f28f85"><td class="memSeparator" colspan="2">&#160;</td></tr>
106<tr class="memitem:a5ff4b278972e799dc134963a0249f316"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a5ff4b278972e799dc134963a0249f316">GPR_ROTR</a>(x, n)&#160;&#160;&#160;(((x) &gt;&gt; (n)) | ((x) &lt;&lt; (sizeof(x) * 8 - (n))))</td></tr>
107<tr class="separator:a5ff4b278972e799dc134963a0249f316"><td class="memSeparator" colspan="2">&#160;</td></tr>
108<tr class="memitem:a0e411d4f81a169c97c319d4e84df5747"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a0e411d4f81a169c97c319d4e84df5747">GPR_ARRAY_SIZE</a>(array)&#160;&#160;&#160;(sizeof(array) / sizeof(*(array)))</td></tr>
109<tr class="separator:a0e411d4f81a169c97c319d4e84df5747"><td class="memSeparator" colspan="2">&#160;</td></tr>
110<tr class="memitem:a9f884f8218a97ed9739e2dac467f0719"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a9f884f8218a97ed9739e2dac467f0719">GPR_SWAP</a>(type, a, b)</td></tr>
111<tr class="separator:a9f884f8218a97ed9739e2dac467f0719"><td class="memSeparator" colspan="2">&#160;</td></tr>
112<tr class="memitem:a28de4ed955bfc2bff309061b7820a37a"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a28de4ed955bfc2bff309061b7820a37a">GPR_BITSET</a>(i, n)&#160;&#160;&#160;((*(i)) |= (1u &lt;&lt; (n)))</td></tr>
113<tr class="memdesc:a28de4ed955bfc2bff309061b7820a37a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set the <em>n-th</em> bit of <em>i</em> (a mutable pointer). <a href="#a28de4ed955bfc2bff309061b7820a37a">More...</a><br/></td></tr>
114<tr class="separator:a28de4ed955bfc2bff309061b7820a37a"><td class="memSeparator" colspan="2">&#160;</td></tr>
115<tr class="memitem:af797bf1803f9809b3ccceaa619078c89"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#af797bf1803f9809b3ccceaa619078c89">GPR_BITCLEAR</a>(i, n)&#160;&#160;&#160;((*(i)) &amp;= ~(1u &lt;&lt; (n)))</td></tr>
116<tr class="memdesc:af797bf1803f9809b3ccceaa619078c89"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clear the <em>n-th</em> bit of <em>i</em> (a mutable pointer). <a href="#af797bf1803f9809b3ccceaa619078c89">More...</a><br/></td></tr>
117<tr class="separator:af797bf1803f9809b3ccceaa619078c89"><td class="memSeparator" colspan="2">&#160;</td></tr>
118<tr class="memitem:a7c54bb2fffdaae24ba38ca5e5c53ab41"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a7c54bb2fffdaae24ba38ca5e5c53ab41">GPR_BITGET</a>(i, n)&#160;&#160;&#160;(((i) &amp; (1u &lt;&lt; (n))) != 0)</td></tr>
119<tr class="memdesc:a7c54bb2fffdaae24ba38ca5e5c53ab41"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the <em>n-th</em> bit of <em>i</em>. <a href="#a7c54bb2fffdaae24ba38ca5e5c53ab41">More...</a><br/></td></tr>
120<tr class="separator:a7c54bb2fffdaae24ba38ca5e5c53ab41"><td class="memSeparator" colspan="2">&#160;</td></tr>
121<tr class="memitem:a601e1be692fe7922b52991a5d410b945"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a601e1be692fe7922b52991a5d410b945">GPR_INTERNAL_HEXDIGIT_BITCOUNT</a>(x)</td></tr>
122<tr class="separator:a601e1be692fe7922b52991a5d410b945"><td class="memSeparator" colspan="2">&#160;</td></tr>
123<tr class="memitem:a8f51444fe97eb3f83184b98035e3357f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="useful_8h.html#a8f51444fe97eb3f83184b98035e3357f">GPR_BITCOUNT</a>(i)</td></tr>
124<tr class="memdesc:a8f51444fe97eb3f83184b98035e3357f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns number of bits set in bitset <em>i</em>. <a href="#a8f51444fe97eb3f83184b98035e3357f">More...</a><br/></td></tr>
125<tr class="separator:a8f51444fe97eb3f83184b98035e3357f"><td class="memSeparator" colspan="2">&#160;</td></tr>
126</table>
127<h2 class="groupheader">Macro Definition Documentation</h2>
128<a class="anchor" id="a0e411d4f81a169c97c319d4e84df5747"></a>
129<div class="memitem">
130<div class="memproto">
131 <table class="memname">
132 <tr>
133 <td class="memname">#define GPR_ARRAY_SIZE</td>
134 <td>(</td>
135 <td class="paramtype">&#160;</td>
136 <td class="paramname">array</td><td>)</td>
137 <td>&#160;&#160;&#160;(sizeof(array) / sizeof(*(array)))</td>
138 </tr>
139 </table>
140</div><div class="memdoc">
141
142</div>
143</div>
144<a class="anchor" id="af797bf1803f9809b3ccceaa619078c89"></a>
145<div class="memitem">
146<div class="memproto">
147 <table class="memname">
148 <tr>
149 <td class="memname">#define GPR_BITCLEAR</td>
150 <td>(</td>
151 <td class="paramtype">&#160;</td>
152 <td class="paramname">i, </td>
153 </tr>
154 <tr>
155 <td class="paramkey"></td>
156 <td></td>
157 <td class="paramtype">&#160;</td>
158 <td class="paramname">n&#160;</td>
159 </tr>
160 <tr>
161 <td></td>
162 <td>)</td>
163 <td></td><td>&#160;&#160;&#160;((*(i)) &amp;= ~(1u &lt;&lt; (n)))</td>
164 </tr>
165 </table>
166</div><div class="memdoc">
167
168<p>Clear the <em>n-th</em> bit of <em>i</em> (a mutable pointer). </p>
169
170</div>
171</div>
172<a class="anchor" id="a8f51444fe97eb3f83184b98035e3357f"></a>
173<div class="memitem">
174<div class="memproto">
175 <table class="memname">
176 <tr>
177 <td class="memname">#define GPR_BITCOUNT</td>
178 <td>(</td>
179 <td class="paramtype">&#160;</td>
180 <td class="paramname">i</td><td>)</td>
181 <td></td>
182 </tr>
183 </table>
184</div><div class="memdoc">
185<b>Value:</b><div class="fragment"><div class="line">(((<a class="code" href="useful_8h.html#a601e1be692fe7922b52991a5d410b945">GPR_INTERNAL_HEXDIGIT_BITCOUNT</a>(i) + \</div>
186<div class="line"> (<a class="code" href="useful_8h.html#a601e1be692fe7922b52991a5d410b945">GPR_INTERNAL_HEXDIGIT_BITCOUNT</a>(i) &gt;&gt; 4)) &amp; \</div>
187<div class="line"> 0x0f0f0f0f) % \</div>
188<div class="line"> 255)</div>
189<div class="ttc" id="useful_8h_html_a601e1be692fe7922b52991a5d410b945"><div class="ttname"><a href="useful_8h.html#a601e1be692fe7922b52991a5d410b945">GPR_INTERNAL_HEXDIGIT_BITCOUNT</a></div><div class="ttdeci">#define GPR_INTERNAL_HEXDIGIT_BITCOUNT(x)</div><div class="ttdef"><b>Definition:</b> useful.h:64</div></div>
190</div><!-- fragment -->
191<p>Returns number of bits set in bitset <em>i</em>. </p>
192
193</div>
194</div>
195<a class="anchor" id="a7c54bb2fffdaae24ba38ca5e5c53ab41"></a>
196<div class="memitem">
197<div class="memproto">
198 <table class="memname">
199 <tr>
200 <td class="memname">#define GPR_BITGET</td>
201 <td>(</td>
202 <td class="paramtype">&#160;</td>
203 <td class="paramname">i, </td>
204 </tr>
205 <tr>
206 <td class="paramkey"></td>
207 <td></td>
208 <td class="paramtype">&#160;</td>
209 <td class="paramname">n&#160;</td>
210 </tr>
211 <tr>
212 <td></td>
213 <td>)</td>
214 <td></td><td>&#160;&#160;&#160;(((i) &amp; (1u &lt;&lt; (n))) != 0)</td>
215 </tr>
216 </table>
217</div><div class="memdoc">
218
219<p>Get the <em>n-th</em> bit of <em>i</em>. </p>
220
221</div>
222</div>
223<a class="anchor" id="a28de4ed955bfc2bff309061b7820a37a"></a>
224<div class="memitem">
225<div class="memproto">
226 <table class="memname">
227 <tr>
228 <td class="memname">#define GPR_BITSET</td>
229 <td>(</td>
230 <td class="paramtype">&#160;</td>
231 <td class="paramname">i, </td>
232 </tr>
233 <tr>
234 <td class="paramkey"></td>
235 <td></td>
236 <td class="paramtype">&#160;</td>
237 <td class="paramname">n&#160;</td>
238 </tr>
239 <tr>
240 <td></td>
241 <td>)</td>
242 <td></td><td>&#160;&#160;&#160;((*(i)) |= (1u &lt;&lt; (n)))</td>
243 </tr>
244 </table>
245</div><div class="memdoc">
246
247<p>Set the <em>n-th</em> bit of <em>i</em> (a mutable pointer). </p>
248
249</div>
250</div>
251<a class="anchor" id="ac974b8c13ee716193e0ee30d9513672c"></a>
252<div class="memitem">
253<div class="memproto">
254 <table class="memname">
255 <tr>
256 <td class="memname">#define GPR_CLAMP</td>
257 <td>(</td>
258 <td class="paramtype">&#160;</td>
259 <td class="paramname">a, </td>
260 </tr>
261 <tr>
262 <td class="paramkey"></td>
263 <td></td>
264 <td class="paramtype">&#160;</td>
265 <td class="paramname">min, </td>
266 </tr>
267 <tr>
268 <td class="paramkey"></td>
269 <td></td>
270 <td class="paramtype">&#160;</td>
271 <td class="paramname">max&#160;</td>
272 </tr>
273 <tr>
274 <td></td>
275 <td>)</td>
276 <td></td><td>&#160;&#160;&#160;((a) &lt; (min) ? (min) : (a) &gt; (max) ? (max) : (a))</td>
277 </tr>
278 </table>
279</div><div class="memdoc">
280
281</div>
282</div>
283<a class="anchor" id="a601e1be692fe7922b52991a5d410b945"></a>
284<div class="memitem">
285<div class="memproto">
286 <table class="memname">
287 <tr>
288 <td class="memname">#define GPR_INTERNAL_HEXDIGIT_BITCOUNT</td>
289 <td>(</td>
290 <td class="paramtype">&#160;</td>
291 <td class="paramname">x</td><td>)</td>
292 <td></td>
293 </tr>
294 </table>
295</div><div class="memdoc">
296<b>Value:</b><div class="fragment"><div class="line">((x) - (((x) &gt;&gt; 1) &amp; 0x77777777) - (((x) &gt;&gt; 2) &amp; 0x33333333) - \</div>
297<div class="line"> (((x) &gt;&gt; 3) &amp; 0x11111111))</div>
298</div><!-- fragment -->
299</div>
300</div>
301<a class="anchor" id="af50c518bb1183da84adb7d8a86cd568a"></a>
302<div class="memitem">
303<div class="memproto">
304 <table class="memname">
305 <tr>
306 <td class="memname">#define GPR_MAX</td>
307 <td>(</td>
308 <td class="paramtype">&#160;</td>
309 <td class="paramname">a, </td>
310 </tr>
311 <tr>
312 <td class="paramkey"></td>
313 <td></td>
314 <td class="paramtype">&#160;</td>
315 <td class="paramname">b&#160;</td>
316 </tr>
317 <tr>
318 <td></td>
319 <td>)</td>
320 <td></td><td>&#160;&#160;&#160;((a) &gt; (b) ? (a) : (b))</td>
321 </tr>
322 </table>
323</div><div class="memdoc">
324
325</div>
326</div>
327<a class="anchor" id="a298322c952526928cf8dbc7aaba7b84d"></a>
328<div class="memitem">
329<div class="memproto">
330 <table class="memname">
331 <tr>
332 <td class="memname">#define GPR_MIN</td>
333 <td>(</td>
334 <td class="paramtype">&#160;</td>
335 <td class="paramname">a, </td>
336 </tr>
337 <tr>
338 <td class="paramkey"></td>
339 <td></td>
340 <td class="paramtype">&#160;</td>
341 <td class="paramname">b&#160;</td>
342 </tr>
343 <tr>
344 <td></td>
345 <td>)</td>
346 <td></td><td>&#160;&#160;&#160;((a) &lt; (b) ? (a) : (b))</td>
347 </tr>
348 </table>
349</div><div class="memdoc">
350
351</div>
352</div>
353<a class="anchor" id="a6f7a8aba8e044f6b20fc8a7560f28f85"></a>
354<div class="memitem">
355<div class="memproto">
356 <table class="memname">
357 <tr>
358 <td class="memname">#define GPR_ROTL</td>
359 <td>(</td>
360 <td class="paramtype">&#160;</td>
361 <td class="paramname">x, </td>
362 </tr>
363 <tr>
364 <td class="paramkey"></td>
365 <td></td>
366 <td class="paramtype">&#160;</td>
367 <td class="paramname">n&#160;</td>
368 </tr>
369 <tr>
370 <td></td>
371 <td>)</td>
372 <td></td><td>&#160;&#160;&#160;(((x) &lt;&lt; (n)) | ((x) &gt;&gt; (sizeof(x) * 8 - (n))))</td>
373 </tr>
374 </table>
375</div><div class="memdoc">
376
377</div>
378</div>
379<a class="anchor" id="a5ff4b278972e799dc134963a0249f316"></a>
380<div class="memitem">
381<div class="memproto">
382 <table class="memname">
383 <tr>
384 <td class="memname">#define GPR_ROTR</td>
385 <td>(</td>
386 <td class="paramtype">&#160;</td>
387 <td class="paramname">x, </td>
388 </tr>
389 <tr>
390 <td class="paramkey"></td>
391 <td></td>
392 <td class="paramtype">&#160;</td>
393 <td class="paramname">n&#160;</td>
394 </tr>
395 <tr>
396 <td></td>
397 <td>)</td>
398 <td></td><td>&#160;&#160;&#160;(((x) &gt;&gt; (n)) | ((x) &lt;&lt; (sizeof(x) * 8 - (n))))</td>
399 </tr>
400 </table>
401</div><div class="memdoc">
402
403</div>
404</div>
405<a class="anchor" id="a9f884f8218a97ed9739e2dac467f0719"></a>
406<div class="memitem">
407<div class="memproto">
408 <table class="memname">
409 <tr>
410 <td class="memname">#define GPR_SWAP</td>
411 <td>(</td>
412 <td class="paramtype">&#160;</td>
413 <td class="paramname">type, </td>
414 </tr>
415 <tr>
416 <td class="paramkey"></td>
417 <td></td>
418 <td class="paramtype">&#160;</td>
419 <td class="paramname">a, </td>
420 </tr>
421 <tr>
422 <td class="paramkey"></td>
423 <td></td>
424 <td class="paramtype">&#160;</td>
425 <td class="paramname">b&#160;</td>
426 </tr>
427 <tr>
428 <td></td>
429 <td>)</td>
430 <td></td><td></td>
431 </tr>
432 </table>
433</div><div class="memdoc">
434<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { \</div>
435<div class="line"> type x = a; \</div>
436<div class="line"> a = b; \</div>
437<div class="line"> b = x; \</div>
438<div class="line"> } <span class="keywordflow">while</span> (0)</div>
439</div><!-- fragment -->
440</div>
441</div>
442</div><!-- contents -->
443<!-- start footer part -->
444<hr class="footer"/><address class="footer"><small>
445Generated on Wed Aug 5 2015 08:17:07 for GRPC Core by &#160;<a href="http://www.doxygen.org/index.html">
446<img class="footer" src="doxygen.png" alt="doxygen"/>
447</a> 1.8.6
448</small></address>
449</body>
450</html>