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  30. <!-- TOC START -->
  31. <div class="toc">
  32. <div class="tocheader toctoggle" id="toc__header">Table of Contents</div>
  33. <div id="toc__inside">
  34. <ul class="toc">
  35. <li class="clear">
  36. <ul class="toc">
  37. <li class="level2"><div class="li"><span class="li"><a href="start#basic_ostringstream" class="toc">basic_ostringstream</a></span></div></li>
  38. <li class="level2"><div class="li"><span class="li"><a href="start#section" class="toc"></a></span></div></li>
  39. <li class="level2"><div class="li"><span class="li"><a href="start#section1" class="toc"></a></span></div>
  40. <ul class="toc">
  41. <li class="level3"><div class="li"><span class="li"><a href="start#see_also" class="toc">See also</a></span></div></li></ul>
  42. </li></ul>
  43. </li></ul>
  44. </div>
  45. </div>
  46. <!-- TOC END -->
  47. <h2 class="sectionedit1"><a name="basic_ostringstream" id="basic_ostringstream">basic_ostringstream</a></h2>
  48. <div class="level2">
  49. <p>
  50. <img src="http://www.cppreference.com/wiki/lib/exe/fetch.php?hash=043392&amp;media=http%3A%2F%2Fchart.apis.google.com%2Fchart%3Fcht%3Dgv%253Adot%26chl%3Ddigraph%2520inheritance%2520%257B%250A%2520%2520graph%2520%255Bdpi%253D%252255%2522%252C%2520label%253D%2522Inheritance%2520diagram%2522%255D%250A%2520%2520node%2520%255Bshape%2520%253D%2520box%252C%2520fontsize%253D14%255D%253B%2520%2520%2520%2520%2520%250A%2509%250A%2520%2520base%2520%255Blabel%2520%253D%2520%2522ios_base%2522%255D%253B%2520%250A%2520%2520ios%2520%255Blabel%2520%253D%2520%2522basic_ios%253CChar%252C%2520Traits%253E%2522%255D%253B%2520%250A%2520%2520ist%2520%255Blabel%2520%253D%2520%2522basic_istream%253CChar%252C%2520Traits%253E%2522%255D%253B%250A%2520%2520osst%2520%255Blabel%2520%253D%2520%2522basic_ostringstream%253CChar%252C%2520Traits%253E%2522%252C%2520style%253Dfilled%255D%253B%250A%250A%2520%2520base%2520-%253E%2520ios%253B%250A%2520%2520ios%2520-%253E%2520ist%253B%250A%2520%2520ist%2520-%253E%2520osst%253B%250A%257D" class="mediaright" alt=""/>
  51. </p>
  52. <pre class="cpp code cpp"><span class="co2">#include &lt;sstream&gt;</span>
  53. &nbsp;
  54. <span class="kw2">template</span><span class="sy1">&lt;</span>
  55. <span class="kw2">class</span> Char,
  56. <span class="kw2">class</span> Traits <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">char_traits</span><span class="sy1">&lt;</span>Char<span class="sy1">&gt;</span>
  57. <span class="sy1">&gt;</span> <span class="kw2">class</span> basic_ostringstream<span class="sy4">;</span> <span class="co1">//inherits std::basic_ostream&lt; Char, Traits &gt;</span></pre>
  58. <p>
  59. The class template <code>basic_ostringstream</code> provides support for output operations on memory (<a href="../../string/basic_string/start" class="wikilink1" title="string:basic_string:start">string</a>) based streams. It directly inherits <a href="../basic_istream/start" class="wikilink1" title="io:basic_istream:start">basic_istream</a> class and therefore indirectly inherits members of <a href="../ios_base/start" class="wikilink1" title="io:ios_base:start">ios_base</a> and <a href="../basic_ios/start" class="wikilink1" title="io:basic_ios:start">basic_ios</a> classes. Two specializations for common character types are also defined:
  60. </p>
  61. <pre class="cpp code cpp"><span class="kw4">typedef</span> basic_ostringstream<span class="sy1">&lt;</span> <span class="kw4">char</span> <span class="sy1">&gt;</span> ostringstream<span class="sy4">;</span>
  62. <span class="kw4">typedef</span> basic_ostringstream<span class="sy1">&lt;</span> <span class="kw4">wchar_t</span> <span class="sy1">&gt;</span> wostringstream<span class="sy4">;</span></pre>
  63. <p>
  64. <br/>
  65. </p>
  66. </div>
  67. <h4><a name="member_types" id="member_types">Member types</a></h4>
  68. <div class="level4">
  69. <div class="table sectionedit2"><table class="inline">
  70. <tr class="row0">
  71. <th class="col0"> Member type </th><th class="col1"> Definition </th>
  72. </tr>
  73. <tr class="row1">
  74. <td class="col0"> <code>char_type</code> </td><td class="col1"> <code>Traits::char_type</code> </td>
  75. </tr>
  76. <tr class="row2">
  77. <td class="col0"> <code>int_type</code> </td><td class="col1"> <code>Traits::int_type</code> </td>
  78. </tr>
  79. <tr class="row3">
  80. <td class="col0"> <code>pos_type</code> </td><td class="col1"> <code>Traits::pos_type</code> </td>
  81. </tr>
  82. <tr class="row4">
  83. <td class="col0"> <code>off_type</code> </td><td class="col1"> <code>Traits::off_type</code> </td>
  84. </tr>
  85. <tr class="row5">
  86. <td class="col0"> <code>state_type</code> </td><td class="col1"> <code>Traits::state_type</code> </td>
  87. </tr>
  88. </table></div>
  89. <!-- EDIT2 TABLE [1101-1335] -->
  90. </div>
  91. <h4><a name="member_functions" id="member_functions">Member functions</a></h4>
  92. <div class="level4">
  93. <p>
  94. <a href="../../todo" class="wikilink1" title="todo">todo</a>
  95. </p>
  96. </div>
  97. <div class="level2">
  98. </div>
  99. <div class="plugin_include_content" id="plugin_include__io:basic_ios:template_inh_members">
  100. <p>
  101. <br/>
  102. </p>
  103. <hr />
  104. <!-- EDIT1 SECTION "basic_ostringstream" [1-10] -->
  105. <h3 class="sectionedit3"><a name="inherited_from_basic_ios" id="inherited_from_basic_ios">Inherited from basic_ios</a></h3>
  106. <div class="level3">
  107. <p>
  108. See <a href="../basic_ios/start" class="wikilink1" title="io:basic_ios:start">basic_ios</a>
  109. </p>
  110. </div>
  111. <h4><a name="member_functions1" id="member_functions1">Member functions</a></h4>
  112. <div class="level4">
  113. </div>
  114. <h5><a name="state_functions" id="state_functions">State functions</a></h5>
  115. <div class="level5">
  116. <div class="table sectionedit4"><table class="inline">
  117. <tr class="row0">
  118. <td class="col0"> <a href="../basic_ios/good" class="wikilink1" title="io:basic_ios:good">good</a> </td><td class="col1"> checks if no error has occurred i.e. I/O operations are available </td>
  119. </tr>
  120. <tr class="row1">
  121. <td class="col0"> <a href="../basic_ios/eof" class="wikilink1" title="io:basic_ios:eof">eof</a> </td><td class="col1"> checks if end-of-file has been reached </td>
  122. </tr>
  123. <tr class="row2">
  124. <td class="col0"> <a href="../basic_ios/fail" class="wikilink1" title="io:basic_ios:fail">fail</a> </td><td class="col1"> checks if a recoverable error has occurred </td>
  125. </tr>
  126. <tr class="row3">
  127. <td class="col0"> <a href="../basic_ios/bad" class="wikilink1" title="io:basic_ios:bad">bad</a> </td><td class="col1"> checks if a non-recoverable error has occurred </td>
  128. </tr>
  129. <tr class="row4">
  130. <td class="col0"> <a href="../basic_ios/operator_neg" class="wikilink1" title="io:basic_ios:operator_neg"> operator !</a> </td><td class="col1"> checks if an error has occurred (synonym of <a href="../basic_ios/fail" class="wikilink1" title="io:basic_ios:fail">fail</a>) </td>
  131. </tr>
  132. <tr class="row5">
  133. <td class="col0"> <a href="../basic_ios/operator_bool" class="wikilink1" title="io:basic_ios:operator_bool"> operator bool</a> </td><td class="col1"> checks if no error has occurred (synonym of <a href="../basic_ios/good" class="wikilink1" title="io:basic_ios:good">good</a>) </td>
  134. </tr>
  135. <tr class="row6">
  136. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/rdstate" class="wikilink2" title="io:basic_ios:rdstate" rel="nofollow">rdstate</a> </td><td class="col1"> returns state flags </td>
  137. </tr>
  138. <tr class="row7">
  139. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/setstate" class="wikilink2" title="io:basic_ios:setstate" rel="nofollow">setstate</a> </td><td class="col1"> sets state flags </td>
  140. </tr>
  141. <tr class="row8">
  142. <td class="col0"> <a href="../basic_ios/clear" class="wikilink1" title="io:basic_ios:clear">clear</a> </td><td class="col1"> clears error and eof flags </td>
  143. </tr>
  144. </table></div>
  145. <!-- EDIT4 TABLE [115-668] -->
  146. </div>
  147. <h5><a name="formatting" id="formatting">Formatting</a></h5>
  148. <div class="level5">
  149. <div class="table sectionedit5"><table class="inline">
  150. <tr class="row0">
  151. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/copyfmt" class="wikilink2" title="io:basic_ios:copyfmt" rel="nofollow">copyfmt</a> </td><td class="col1"> copies formatting information </td>
  152. </tr>
  153. <tr class="row1">
  154. <td class="col0"> <a href="../basic_ios/fill" class="wikilink2" title="io:basic_ios:fill" rel="nofollow">fill</a> </td><td class="col1"> manages the fill character </td>
  155. </tr>
  156. </table></div>
  157. <!-- EDIT5 TABLE [686-775] -->
  158. </div>
  159. <h5><a name="miscellaneous" id="miscellaneous">Miscellaneous</a></h5>
  160. <div class="level5">
  161. <div class="table sectionedit6"><table class="inline">
  162. <tr class="row0">
  163. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/exceptions" class="wikilink2" title="io:basic_ios:exceptions" rel="nofollow">exceptions</a> </td><td class="col1"> manages exception mask </td>
  164. </tr>
  165. <tr class="row1">
  166. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/imbue" class="wikilink2" title="io:basic_ios:imbue" rel="nofollow">imbue</a> </td><td class="col1"> sets the locale </td>
  167. </tr>
  168. <tr class="row2">
  169. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/rdbuf" class="wikilink2" title="io:basic_ios:rdbuf" rel="nofollow">rdbuf</a> </td><td class="col1"> manages associated stream buffer </td>
  170. </tr>
  171. <tr class="row3">
  172. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/tie" class="wikilink2" title="io:basic_ios:tie" rel="nofollow">tie</a> </td><td class="col1"> manages tied stream </td>
  173. </tr>
  174. <tr class="row4">
  175. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/narrow" class="wikilink2" title="io:basic_ios:narrow" rel="nofollow">narrow</a> </td><td class="col1"> narrows characters </td>
  176. </tr>
  177. <tr class="row5">
  178. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/basic_ios/widen" class="wikilink2" title="io:basic_ios:widen" rel="nofollow">widen</a> </td><td class="col1"> widens characters </td>
  179. </tr>
  180. </table></div>
  181. <!-- EDIT6 TABLE [796-1024] -->
  182. </div>
  183. <div class="secedit">
  184. <form class="button btn_incledit" method="post" action="http://www.cppreference.com/wiki/io/basic_ostringstream/doku.php"><div class="no">
  185. <input type="hidden" name="do" value="edit" /><input type="hidden" name="redirect_id" value="io:basic_ostringstream:start" /><input type="hidden" name="id" value="io:basic_ios:template_inh_members" /><input type="submit" value="Edit (io:basic_ios:template_inh_members)" class="button" title="io:basic_ios:template_inh_members"/>
  186. </div></form>
  187. </div>
  188. </div>
  189. <div class="level2">
  190. </div>
  191. <div class="level2">
  192. </div>
  193. <div class="plugin_include_content" id="plugin_include__io:ios_base:template_inh_members">
  194. <p>
  195. <br/>
  196. </p>
  197. <hr />
  198. <h3 class="sectionedit7"><a name="inherited_from_ios_base" id="inherited_from_ios_base">Inherited from ios_base</a></h3>
  199. <div class="level3">
  200. <p>
  201. See <a href="../ios_base/start" class="wikilink1" title="io:ios_base:start">ios_base</a>
  202. </p>
  203. </div>
  204. <h4><a name="member_functions2" id="member_functions2">Member functions</a></h4>
  205. <div class="level4">
  206. </div>
  207. <h5><a name="formatting1" id="formatting1">Formatting</a></h5>
  208. <div class="level5">
  209. <div class="table sectionedit8"><table class="inline">
  210. <tr class="row0">
  211. <td class="col0"> <a href="../ios_base/flags" class="wikilink1" title="io:ios_base:flags">flags</a> </td><td class="col1"> manages format flags </td>
  212. </tr>
  213. <tr class="row1">
  214. <td class="col0"> <a href="../ios_base/setf" class="wikilink1" title="io:ios_base:setf">setf</a> </td><td class="col1"> sets specific format flag </td>
  215. </tr>
  216. <tr class="row2">
  217. <td class="col0"> <a href="../ios_base/unsetf" class="wikilink1" title="io:ios_base:unsetf">unsetf</a> </td><td class="col1"> clears specific format flag </td>
  218. </tr>
  219. <tr class="row3">
  220. <td class="col0"> <a href="../ios_base/precision" class="wikilink1" title="io:ios_base:precision">precision</a> </td><td class="col1"> manages decimal precision of floating point operations </td>
  221. </tr>
  222. <tr class="row4">
  223. <td class="col0"> <a href="../ios_base/width" class="wikilink1" title="io:ios_base:width">width</a> </td><td class="col1"> manages field width </td>
  224. </tr>
  225. </table></div>
  226. <!-- EDIT8 TABLE [109-342] -->
  227. </div>
  228. <h5><a name="locales" id="locales">Locales</a></h5>
  229. <div class="level5">
  230. <div class="table sectionedit9"><table class="inline">
  231. <tr class="row0">
  232. <td class="col0"> <a href="../ios_base/imbue" class="wikilink1" title="io:ios_base:imbue">imbue</a> </td><td class="col1"> sets locale </td>
  233. </tr>
  234. <tr class="row1">
  235. <td class="col0"> <a href="../ios_base/getloc" class="wikilink1" title="io:ios_base:getloc">getloc</a> </td><td class="col1"> returns current locale </td>
  236. </tr>
  237. </table></div>
  238. <!-- EDIT9 TABLE [357-424] -->
  239. </div>
  240. <h5><a name="internal_extensible_array" id="internal_extensible_array">Internal extensible array</a></h5>
  241. <div class="level5">
  242. <div class="table sectionedit10"><table class="inline">
  243. <tr class="row0">
  244. <td class="col0"> <a href="../ios_base/xalloc" class="wikilink1" title="io:ios_base:xalloc">xalloc</a> </td><td class="col1"> allocates element of the internal extensible array </td>
  245. </tr>
  246. <tr class="row1">
  247. <td class="col0"> <a href="../ios_base/iword" class="wikilink1" title="io:ios_base:iword">iword</a> </td><td class="col1"> returns reference to specific element of internal extensible array </td>
  248. </tr>
  249. <tr class="row2">
  250. <td class="col0"> <a href="../ios_base/pword" class="wikilink1" title="io:ios_base:pword">pword</a> </td><td class="col1"> returns reference to specific element of internal extensible array </td>
  251. </tr>
  252. </table></div>
  253. <!-- EDIT10 TABLE [457-690] -->
  254. </div>
  255. <h5><a name="miscellaneous1" id="miscellaneous1">Miscellaneous</a></h5>
  256. <div class="level5">
  257. <div class="table sectionedit11"><table class="inline">
  258. <tr class="row0">
  259. <td class="col0"> <a href="../ios_base/register_callback" class="wikilink1" title="io:ios_base:register_callback">register_callback</a> </td><td class="col1"> registers event callback function </td>
  260. </tr>
  261. <tr class="row1">
  262. <td class="col0"> <a href="../ios_base/sync_with_stdio" class="wikilink1" title="io:ios_base:sync_with_stdio">sync_with_stdio</a> </td><td class="col1"> manages synchronization settings </td>
  263. </tr>
  264. </table></div>
  265. <!-- EDIT11 TABLE [711-831] -->
  266. </div>
  267. <h4><a name="member_types1" id="member_types1">Member types</a></h4>
  268. <div class="level4">
  269. <div class="table sectionedit12"><table class="inline">
  270. <tr class="row0">
  271. <th class="col0"> Member type </th><th class="col1"> Definition </th>
  272. </tr>
  273. <tr class="row1">
  274. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/ios_base/event" class="wikilink2" title="io:ios_base:event" rel="nofollow">event</a> </td><td class="col1"> specifies event type </td>
  275. </tr>
  276. <tr class="row2">
  277. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/ios_base/event_callback" class="wikilink2" title="io:ios_base:event_callback" rel="nofollow">event_callback</a> </td><td class="col1"> callback function type </td>
  278. </tr>
  279. <tr class="row3">
  280. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/ios_base/fmtflags" class="wikilink2" title="io:ios_base:fmtflags" rel="nofollow">fmtflags</a> </td><td class="col1"> formatting flags </td>
  281. </tr>
  282. <tr class="row4">
  283. <td class="col0"> <a href="../ios_base/iostate" class="wikilink1" title="io:ios_base:iostate">iostate</a> </td><td class="col1"> stream state </td>
  284. </tr>
  285. <tr class="row5">
  286. <td class="col0"> <a href="../ios_base/openmode" class="wikilink1" title="io:ios_base:openmode">openmode</a> </td><td class="col1"> opening mode </td>
  287. </tr>
  288. <tr class="row6">
  289. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/ios_base/seekdir" class="wikilink2" title="io:ios_base:seekdir" rel="nofollow">seekdir</a> </td><td class="col1"> seeking direction </td>
  290. </tr>
  291. </table></div>
  292. <!-- EDIT12 TABLE [853-1101] -->
  293. </div>
  294. <h5><a name="member_classes" id="member_classes">Member classes</a></h5>
  295. <div class="level5">
  296. <div class="table sectionedit13"><table class="inline">
  297. <tr class="row0">
  298. <td class="col0"> <a href="http://www.cppreference.com/wiki/io/ios_base/failure" class="wikilink2" title="io:ios_base:failure" rel="nofollow">failure</a> </td><td class="col1"> stream exception </td>
  299. </tr>
  300. <tr class="row1">
  301. <td class="col0"> <a href="../ios_base/init" class="wikilink1" title="io:ios_base:init">Init</a> </td><td class="col1"> initializes standard streams </td>
  302. </tr>
  303. </table></div>
  304. <!-- EDIT13 TABLE [1123-1201] -->
  305. </div>
  306. <div class="secedit">
  307. <form class="button btn_incledit" method="post" action="http://www.cppreference.com/wiki/io/basic_ostringstream/doku.php"><div class="no">
  308. <input type="hidden" name="do" value="edit" /><input type="hidden" name="redirect_id" value="io:basic_ostringstream:start" /><input type="hidden" name="id" value="io:ios_base:template_inh_members" /><input type="submit" value="Edit (io:ios_base:template_inh_members)" class="button" title="io:ios_base:template_inh_members"/>
  309. </div></form>
  310. </div>
  311. </div>
  312. <div class="level2">
  313. </div>
  314. <!-- EDIT7 SECTION "Inherited from ios_base" [11-1503] -->
  315. <h3 class="sectionedit14"><a name="see_also" id="see_also">See also</a></h3>
  316. <div class="level3">
  317. <p>
  318. <a href="../basic_istringstream/start" class="wikilink1" title="io:basic_istringstream:start">basic_istringstream</a>, <a href="../basic_stringstream/start" class="wikilink1" title="io:basic_stringstream:start">basic_stringstream</a>
  319. </p>
  320. </div>
  321. <!-- EDIT14 SECTION "See also" [1504-] --></div>
  322. </body>
  323. </html>