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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>ICU 78.3: icu::StringPiece Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">ICU 78.3  <span id="projectnumber">78.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 / var searchBox = new SearchBox("searchBox", "search",false,'Search'); / @license-end / </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> / @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 / $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); / @license-end /</script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="namespaceicu.html">icu</a></li><li class="navelem"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-methods">Public Member Functions</a> \| <a href="#pub-static-attribs">Static Public Attributes</a> </div> <div class="headertitle"> <div class="title">icu::StringPiece Class Reference</div> </div> </div><!--header--> <div class="contents"> <p>A string-like object that points to a sized piece of memory. <a href="classicu_1_1StringPiece.html#details">More...</a></p> <p><code>#include <<a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>></code></p> <div class="dynheader"> Inheritance diagram for icu::StringPiece:</div> <div class="dyncontent"> <div class="center"> <img src="classicu_1_1StringPiece.png" usemap="#icu::StringPiece_map" alt=""/> <map id="icu::StringPiece_map" name="icu::StringPiece_map"> <area href="classicu_1_1UMemory.html" title="UMemory is the common ICU base class. " alt="icu::UMemory" shape="rect" coords="0,0,100,24"/> </map> </div></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr class="memitem:a883ea13586812cd22afd092f8d9dadf6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a883ea13586812cd22afd092f8d9dadf6">StringPiece</a> ()</td></tr> <tr class="memdesc:a883ea13586812cd22afd092f8d9dadf6"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor, creates an empty <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. <a href="#a883ea13586812cd22afd092f8d9dadf6">More...</a><br /></td></tr> <tr class="separator:a883ea13586812cd22afd092f8d9dadf6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a0f1f4a00c258d3ab74fb3df3d0c9b72a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a0f1f4a00c258d3ab74fb3df3d0c9b72a">StringPiece</a> (const char str)</td></tr> <tr class="memdesc:a0f1f4a00c258d3ab74fb3df3d0c9b72a"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a NUL-terminated const char * pointer. <a href="#a0f1f4a00c258d3ab74fb3df3d0c9b72a">More...</a><br /></td></tr> <tr class="separator:a0f1f4a00c258d3ab74fb3df3d0c9b72a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a25b121ccdf279b0cd241431964ada557"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a25b121ccdf279b0cd241431964ada557">StringPiece</a> (const char8_t str)</td></tr> <tr class="memdesc:a25b121ccdf279b0cd241431964ada557"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a NUL-terminated const char8_t pointer. <a href="#a25b121ccdf279b0cd241431964ada557">More...</a><br /></td></tr> <tr class="separator:a25b121ccdf279b0cd241431964ada557"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a958d13378a809ac220bd867a60d52c99"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a958d13378a809ac220bd867a60d52c99">StringPiece</a> (std::nullptr_t p)</td></tr> <tr class="memdesc:a958d13378a809ac220bd867a60d52c99"><td class="mdescLeft"> </td><td class="mdescRight">Constructs an empty <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. <a href="#a958d13378a809ac220bd867a60d52c99">More...</a><br /></td></tr> <tr class="separator:a958d13378a809ac220bd867a60d52c99"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ae52992082e683c5a8206ac3ec040f4aa"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ae52992082e683c5a8206ac3ec040f4aa">StringPiece</a> (const std::string &str)</td></tr> <tr class="memdesc:ae52992082e683c5a8206ac3ec040f4aa"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a std::string. <a href="#ae52992082e683c5a8206ac3ec040f4aa">More...</a><br /></td></tr> <tr class="separator:ae52992082e683c5a8206ac3ec040f4aa"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a35f4dd3da9d40eb99de966e9e52b4fa6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a35f4dd3da9d40eb99de966e9e52b4fa6">StringPiece</a> (const std::u8string &str)</td></tr> <tr class="memdesc:a35f4dd3da9d40eb99de966e9e52b4fa6"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a std::u8string. <a href="#a35f4dd3da9d40eb99de966e9e52b4fa6">More...</a><br /></td></tr> <tr class="separator:a35f4dd3da9d40eb99de966e9e52b4fa6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a254a4f27616857af98f9ecf384a6e865"><td class="memTemplParams" colspan="2">template<typename T , typename = std::enable_if_t< (std::is_same_v<decltype(T().data()), const char> ) && std::is_same_v<decltype(T().size()), size_t>>> </td></tr> <tr class="memitem:a254a4f27616857af98f9ecf384a6e865"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a254a4f27616857af98f9ecf384a6e865">StringPiece</a> (T str)</td></tr> <tr class="memdesc:a254a4f27616857af98f9ecf384a6e865"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from some other implementation of a string piece class, from any C++ record type that has these two methods: <a href="#a254a4f27616857af98f9ecf384a6e865">More...</a><br /></td></tr> <tr class="separator:a254a4f27616857af98f9ecf384a6e865"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:af97f22b270d21d5c97337d5d58966a59"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#af97f22b270d21d5c97337d5d58966a59">StringPiece</a> (const char offset, int32_t len)</td></tr> <tr class="memdesc:af97f22b270d21d5c97337d5d58966a59"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a const char * pointer and a specified length. <a href="#af97f22b270d21d5c97337d5d58966a59">More...</a><br /></td></tr> <tr class="separator:af97f22b270d21d5c97337d5d58966a59"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ac749de6914d0f02082bc002dded7f927"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ac749de6914d0f02082bc002dded7f927">StringPiece</a> (const char8_t str, int32_t len)</td></tr> <tr class="memdesc:ac749de6914d0f02082bc002dded7f927"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a const char8_t pointer and a specified length. <a href="#ac749de6914d0f02082bc002dded7f927">More...</a><br /></td></tr> <tr class="separator:ac749de6914d0f02082bc002dded7f927"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ad864469d0ed57bf15e1378076b3d16fb"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ad864469d0ed57bf15e1378076b3d16fb">StringPiece</a> (const <a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> &x, int32_t pos)</td></tr> <tr class="memdesc:ad864469d0ed57bf15e1378076b3d16fb"><td class="mdescLeft"> </td><td class="mdescRight">Substring of another <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. <a href="#ad864469d0ed57bf15e1378076b3d16fb">More...</a><br /></td></tr> <tr class="separator:ad864469d0ed57bf15e1378076b3d16fb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1b793f69feffef74ea5027095c64aab2"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a1b793f69feffef74ea5027095c64aab2">StringPiece</a> (const <a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> &x, int32_t pos, int32_t len)</td></tr> <tr class="memdesc:a1b793f69feffef74ea5027095c64aab2"><td class="mdescLeft"> </td><td class="mdescRight">Substring of another <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. <a href="#a1b793f69feffef74ea5027095c64aab2">More...</a><br /></td></tr> <tr class="separator:a1b793f69feffef74ea5027095c64aab2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a06058dc9deb6a25dc147a3a3e6e56a6c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a06058dc9deb6a25dc147a3a3e6e56a6c">operator std::string_view</a> () const</td></tr> <tr class="memdesc:a06058dc9deb6a25dc147a3a3e6e56a6c"><td class="mdescLeft"> </td><td class="mdescRight">Converts to a std::string_view(). <a href="#a06058dc9deb6a25dc147a3a3e6e56a6c">More...</a><br /></td></tr> <tr class="separator:a06058dc9deb6a25dc147a3a3e6e56a6c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1f4a1c4931d9c82baa7276c08ba65cff"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a1f4a1c4931d9c82baa7276c08ba65cff">data</a> () const</td></tr> <tr class="memdesc:a1f4a1c4931d9c82baa7276c08ba65cff"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string pointer. <a href="#a1f4a1c4931d9c82baa7276c08ba65cff">More...</a><br /></td></tr> <tr class="separator:a1f4a1c4931d9c82baa7276c08ba65cff"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ab7704c0a02079a1d96b13d3011a888e2"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ab7704c0a02079a1d96b13d3011a888e2">size</a> () const</td></tr> <tr class="memdesc:ab7704c0a02079a1d96b13d3011a888e2"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string length. <a href="#ab7704c0a02079a1d96b13d3011a888e2">More...</a><br /></td></tr> <tr class="separator:ab7704c0a02079a1d96b13d3011a888e2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ad6f5f2eacf062a300706a8c5f7da85cc"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc">length</a> () const</td></tr> <tr class="memdesc:ad6f5f2eacf062a300706a8c5f7da85cc"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string length. <a href="#ad6f5f2eacf062a300706a8c5f7da85cc">More...</a><br /></td></tr> <tr class="separator:ad6f5f2eacf062a300706a8c5f7da85cc"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a0513410ed8444fcbe3d8cb9c7fb1ebd6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a0513410ed8444fcbe3d8cb9c7fb1ebd6">empty</a> () const</td></tr> <tr class="memdesc:a0513410ed8444fcbe3d8cb9c7fb1ebd6"><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the string is empty. <a href="#a0513410ed8444fcbe3d8cb9c7fb1ebd6">More...</a><br /></td></tr> <tr class="separator:a0513410ed8444fcbe3d8cb9c7fb1ebd6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a556a1c4776319a54048f3017b6426d6a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a556a1c4776319a54048f3017b6426d6a">clear</a> ()</td></tr> <tr class="memdesc:a556a1c4776319a54048f3017b6426d6a"><td class="mdescLeft"> </td><td class="mdescRight">Sets to an empty string. <a href="#a556a1c4776319a54048f3017b6426d6a">More...</a><br /></td></tr> <tr class="separator:a556a1c4776319a54048f3017b6426d6a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aa9fb8d13c5903207142dff23f7cf21bc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#aa9fb8d13c5903207142dff23f7cf21bc">set</a> (const char xdata, int32_t len)</td></tr> <tr class="memdesc:aa9fb8d13c5903207142dff23f7cf21bc"><td class="mdescLeft"> </td><td class="mdescRight">Reset the stringpiece to refer to new data. <a href="#aa9fb8d13c5903207142dff23f7cf21bc">More...</a><br /></td></tr> <tr class="separator:aa9fb8d13c5903207142dff23f7cf21bc"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a13add7445082965d9eeaa1ebc5d9bc7a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a13add7445082965d9eeaa1ebc5d9bc7a">set</a> (const char str)</td></tr> <tr class="memdesc:a13add7445082965d9eeaa1ebc5d9bc7a"><td class="mdescLeft"> </td><td class="mdescRight">Reset the stringpiece to refer to new data. <a href="#a13add7445082965d9eeaa1ebc5d9bc7a">More...</a><br /></td></tr> <tr class="separator:a13add7445082965d9eeaa1ebc5d9bc7a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a56c189120008fdae16fdfaa2c05d39ca"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a56c189120008fdae16fdfaa2c05d39ca">set</a> (const char8_t xdata, int32_t len)</td></tr> <tr class="memdesc:a56c189120008fdae16fdfaa2c05d39ca"><td class="mdescLeft"> </td><td class="mdescRight">Resets the stringpiece to refer to new data. <a href="#a56c189120008fdae16fdfaa2c05d39ca">More...</a><br /></td></tr> <tr class="separator:a56c189120008fdae16fdfaa2c05d39ca"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aa3267fbc0ae7eff7360d1578f4fe9d0e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#aa3267fbc0ae7eff7360d1578f4fe9d0e">set</a> (const char8_t str)</td></tr> <tr class="memdesc:aa3267fbc0ae7eff7360d1578f4fe9d0e"><td class="mdescLeft"> </td><td class="mdescRight">Resets the stringpiece to refer to new data. <a href="#aa3267fbc0ae7eff7360d1578f4fe9d0e">More...</a><br /></td></tr> <tr class="separator:aa3267fbc0ae7eff7360d1578f4fe9d0e"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:abd554715ec521ecf2413923c8429c4b5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#abd554715ec521ecf2413923c8429c4b5">remove_prefix</a> (int32_t n)</td></tr> <tr class="memdesc:abd554715ec521ecf2413923c8429c4b5"><td class="mdescLeft"> </td><td class="mdescRight">Removes the first n string units. <a href="#abd554715ec521ecf2413923c8429c4b5">More...</a><br /></td></tr> <tr class="separator:abd554715ec521ecf2413923c8429c4b5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ac53d760ea1e9655cff791779fee49f58"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#ac53d760ea1e9655cff791779fee49f58">remove_suffix</a> (int32_t n)</td></tr> <tr class="memdesc:ac53d760ea1e9655cff791779fee49f58"><td class="mdescLeft"> </td><td class="mdescRight">Removes the last n string units. <a href="#ac53d760ea1e9655cff791779fee49f58">More...</a><br /></td></tr> <tr class="separator:ac53d760ea1e9655cff791779fee49f58"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a471e53374b7e3219adc83854e4638d18"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a471e53374b7e3219adc83854e4638d18">find</a> (<a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> needle, int32_t offset)</td></tr> <tr class="memdesc:a471e53374b7e3219adc83854e4638d18"><td class="mdescLeft"> </td><td class="mdescRight">Searches the <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> for the given search string (needle);. <a href="#a471e53374b7e3219adc83854e4638d18">More...</a><br /></td></tr> <tr class="separator:a471e53374b7e3219adc83854e4638d18"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:abed8fcf3ba90e7076b68120e8beeccc4"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#abed8fcf3ba90e7076b68120e8beeccc4">compare</a> (<a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> other)</td></tr> <tr class="memdesc:abed8fcf3ba90e7076b68120e8beeccc4"><td class="mdescLeft"> </td><td class="mdescRight">Compares this <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> with the other <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>, with semantics similar to std::string::compare(). <a href="#abed8fcf3ba90e7076b68120e8beeccc4">More...</a><br /></td></tr> <tr class="separator:abed8fcf3ba90e7076b68120e8beeccc4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a03b1fd6a19bb0e8cbde5ce25064c3c33"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a03b1fd6a19bb0e8cbde5ce25064c3c33">substr</a> (int32_t pos, int32_t len=<a class="el" href="classicu_1_1StringPiece.html#a495638fbbd40637881ee185bd3413720">npos</a>) const</td></tr> <tr class="memdesc:a03b1fd6a19bb0e8cbde5ce25064c3c33"><td class="mdescLeft"> </td><td class="mdescRight">Returns a substring of this <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. <a href="#a03b1fd6a19bb0e8cbde5ce25064c3c33">More...</a><br /></td></tr> <tr class="separator:a03b1fd6a19bb0e8cbde5ce25064c3c33"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-attribs"></a> Static Public Attributes</h2></td></tr> <tr class="memitem:a495638fbbd40637881ee185bd3413720"><td class="memItemLeft" align="right" valign="top">static const int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1StringPiece.html#a495638fbbd40637881ee185bd3413720">npos</a></td></tr> <tr class="memdesc:a495638fbbd40637881ee185bd3413720"><td class="mdescLeft"> </td><td class="mdescRight">Maximum integer, used as a default value for substring methods. <a href="#a495638fbbd40637881ee185bd3413720">More...</a><br /></td></tr> <tr class="separator:a495638fbbd40637881ee185bd3413720"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>A string-like object that points to a sized piece of memory. </p> <p>We provide non-explicit singleton constructors so users can pass in a "const char" or a "string" wherever a "StringPiece" is expected.</p> <p>Functions or methods may use <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> parameters to accept either a "const char" or a "string" value that will be implicitly converted to a <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>.</p> <p>Systematic usage of <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> is encouraged as it will reduce unnecessary conversions from "const char" to "string" and back again.</p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000791">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00061">61</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div><h2 class="groupheader">Constructor & Destructor Documentation</h2> <a id="a883ea13586812cd22afd092f8d9dadf6"></a> <h2 class="memtitle"><span class="permalink"><a href="#a883ea13586812cd22afd092f8d9dadf6">◆ </a></span>StringPiece() <span class="overload">[1/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Default constructor, creates an empty <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. </p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000794">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00071">71</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a0f1f4a00c258d3ab74fb3df3d0c9b72a"></a> <h2 class="memtitle"><span class="permalink"><a href="#a0f1f4a00c258d3ab74fb3df3d0c9b72a">◆ </a></span>StringPiece() <span class="overload">[2/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const char  </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a NUL-terminated const char * pointer. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>a NUL-terminated const char * pointer </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000795">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> </div> </div> <a id="a25b121ccdf279b0cd241431964ada557"></a> <h2 class="memtitle"><span class="permalink"><a href="#a25b121ccdf279b0cd241431964ada557">◆ </a></span>StringPiece() <span class="overload">[3/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const char8_t * </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a NUL-terminated const char8_t * pointer. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>a NUL-terminated const char8_t * pointer </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000796">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00085">85</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a958d13378a809ac220bd867a60d52c99"></a> <h2 class="memtitle"><span class="permalink"><a href="#a958d13378a809ac220bd867a60d52c99">◆ </a></span>StringPiece() <span class="overload">[4/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">std::nullptr_t </td> <td class="paramname"><em>p</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs an empty <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. </p> <p>Needed for type disambiguation from multiple other overloads. </p><dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">p</td><td>nullptr </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000797">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00093">93</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="ae52992082e683c5a8206ac3ec040f4aa"></a> <h2 class="memtitle"><span class="permalink"><a href="#ae52992082e683c5a8206ac3ec040f4aa">◆ </a></span>StringPiece() <span class="overload">[5/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const std::string & </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a std::string. </p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000798">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00099">99</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a35f4dd3da9d40eb99de966e9e52b4fa6"></a> <h2 class="memtitle"><span class="permalink"><a href="#a35f4dd3da9d40eb99de966e9e52b4fa6">◆ </a></span>StringPiece() <span class="overload">[6/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const std::u8string & </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a std::u8string. </p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000799">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00106">106</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a254a4f27616857af98f9ecf384a6e865"></a> <h2 class="memtitle"><span class="permalink"><a href="#a254a4f27616857af98f9ecf384a6e865">◆ </a></span>StringPiece() <span class="overload">[7/11]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename T , typename = std::enable_if_t< (std::is_same_v<decltype(T().data()), const char> ) && std::is_same_v<decltype(T().size()), size_t>>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">T </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from some other implementation of a string piece class, from any C++ record type that has these two methods: </p> <div class="fragment"><div class="line"><span class="keyword">struct </span>OtherStringPieceClass {</div><div class="line"> <span class="keyword">const</span> <span class="keywordtype">char</span> <a class="code" href="classicu_1_1StringPiece.html#a1f4a1c4931d9c82baa7276c08ba65cff">data</a>(); <span class="comment">// or const char8_t</span></div><div class="line"> <span class="keywordtype">size_t</span> <a class="code" href="classicu_1_1StringPiece.html#ab7704c0a02079a1d96b13d3011a888e2">size</a>();</div><div class="line">};</div></div><!-- fragment --><p>The other string piece class will typically be std::string_view from C++17 or absl::string_view from Abseil.</p> <p>Starting with C++20, <a class="el" href="classicu_1_1StringPiece.html#a1f4a1c4931d9c82baa7276c08ba65cff" title="Returns the string pointer. ">data()</a> may also return a const char8_t pointer, as from std::u8string_view.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>the other string piece </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000800">Stable:</a></b></dt><dd>ICU 65 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00141">141</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="af97f22b270d21d5c97337d5d58966a59"></a> <h2 class="memtitle"><span class="permalink"><a href="#af97f22b270d21d5c97337d5d58966a59">◆ </a></span>StringPiece() <span class="overload">[8/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"><em>offset</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a const char * pointer and a specified length. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">offset</td><td>a const char * pointer (need not be terminated) </td></tr> <tr><td class="paramname">len</td><td>the length of the string; must be non-negative </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000801">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00151">151</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="ac749de6914d0f02082bc002dded7f927"></a> <h2 class="memtitle"><span class="permalink"><a href="#ac749de6914d0f02082bc002dded7f927">◆ </a></span>StringPiece() <span class="overload">[9/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const char8_t * </td> <td class="paramname"><em>str</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs from a const char8_t * pointer and a specified length. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>a const char8_t * pointer (need not be terminated) </td></tr> <tr><td class="paramname">len</td><td>the length of the string; must be non-negative </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000802">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00159">159</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="ad864469d0ed57bf15e1378076b3d16fb"></a> <h2 class="memtitle"><span class="permalink"><a href="#ad864469d0ed57bf15e1378076b3d16fb">◆ </a></span>StringPiece() <span class="overload">[10/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const <a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> & </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>pos</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Substring of another <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">x</td><td>the other <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> </td></tr> <tr><td class="paramname">pos</td><td>start position in x; must be non-negative and <= x.length(). </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000803">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> </div> </div> <a id="a1b793f69feffef74ea5027095c64aab2"></a> <h2 class="memtitle"><span class="permalink"><a href="#a1b793f69feffef74ea5027095c64aab2">◆ </a></span>StringPiece() <span class="overload">[11/11]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::StringPiece </td> <td>(</td> <td class="paramtype">const <a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> & </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>pos</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Substring of another <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">x</td><td>the other <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> </td></tr> <tr><td class="paramname">pos</td><td>start position in x; must be non-negative and <= x.length(). </td></tr> <tr><td class="paramname">len</td><td>length of the substring; must be non-negative and will be pinned to at most x.length() - pos. </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000804">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> </div> </div> <h2 class="groupheader">Member Function Documentation</h2> <a id="a556a1c4776319a54048f3017b6426d6a"></a> <h2 class="memtitle"><span class="permalink"><a href="#a556a1c4776319a54048f3017b6426d6a">◆ </a></span>clear()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::clear </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Sets to an empty string. </p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000809">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00224">224</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="abed8fcf3ba90e7076b68120e8beeccc4"></a> <h2 class="memtitle"><span class="permalink"><a href="#abed8fcf3ba90e7076b68120e8beeccc4">◆ </a></span>compare()</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int32_t icu::StringPiece::compare </td> <td>(</td> <td class="paramtype"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> </td> <td class="paramname"><em>other</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Compares this <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> with the other <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>, with semantics similar to std::string::compare(). </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">other</td><td>The string to compare to. </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>below zero if this < other; above zero if this > other; 0 if this == other. </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000817">Stable:</a></b></dt><dd>ICU 67 </dd></dl> </div> </div> <a id="a1f4a1c4931d9c82baa7276c08ba65cff"></a> <h2 class="memtitle"><span class="permalink"><a href="#a1f4a1c4931d9c82baa7276c08ba65cff">◆ </a></span>data()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">const char* icu::StringPiece::data </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the string pointer. </p> <p>May be nullptr if it is empty.</p> <p><a class="el" href="classicu_1_1StringPiece.html#a1f4a1c4931d9c82baa7276c08ba65cff" title="Returns the string pointer. ">data()</a> may return a pointer to a buffer with embedded NULs, and the returned buffer may or may not be null terminated. Therefore it is typically a mistake to pass <a class="el" href="classicu_1_1StringPiece.html#a1f4a1c4931d9c82baa7276c08ba65cff" title="Returns the string pointer. ">data()</a> to a routine that expects a NUL terminated string. </p><dl class="section return"><dt>Returns</dt><dd>the string pointer </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000805">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00200">200</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a0513410ed8444fcbe3d8cb9c7fb1ebd6"></a> <h2 class="memtitle"><span class="permalink"><a href="#a0513410ed8444fcbe3d8cb9c7fb1ebd6">◆ </a></span>empty()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> icu::StringPiece::empty </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns whether the string is empty. </p> <dl class="section return"><dt>Returns</dt><dd>true if the string is empty </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000808">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00218">218</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a471e53374b7e3219adc83854e4638d18"></a> <h2 class="memtitle"><span class="permalink"><a href="#a471e53374b7e3219adc83854e4638d18">◆ </a></span>find()</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int32_t icu::StringPiece::find </td> <td>(</td> <td class="paramtype"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> </td> <td class="paramname"><em>needle</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>offset</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Searches the <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> for the given search string (needle);. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">needle</td><td>The string for which to search. </td></tr> <tr><td class="paramname">offset</td><td>Where to start searching within this string (haystack). </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>The offset of needle in haystack, or -1 if not found. </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000816">Stable:</a></b></dt><dd>ICU 67 </dd></dl> </div> </div> <a id="ad6f5f2eacf062a300706a8c5f7da85cc"></a> <h2 class="memtitle"><span class="permalink"><a href="#ad6f5f2eacf062a300706a8c5f7da85cc">◆ </a></span>length()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">int32_t icu::StringPiece::length </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the string length. </p> <p>Same as <a class="el" href="classicu_1_1StringPiece.html#ab7704c0a02079a1d96b13d3011a888e2" title="Returns the string length. ">size()</a>. </p><dl class="section return"><dt>Returns</dt><dd>the string length </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000807">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00212">212</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a06058dc9deb6a25dc147a3a3e6e56a6c"></a> <h2 class="memtitle"><span class="permalink"><a href="#a06058dc9deb6a25dc147a3a3e6e56a6c">◆ </a></span>operator std::string_view()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">icu::StringPiece::operator std::string_view </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Converts to a std::string_view(). </p> <dl class="internal"><dt><b><a class="el" href="internal.html#_internal000111">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00185">185</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="abd554715ec521ecf2413923c8429c4b5"></a> <h2 class="memtitle"><span class="permalink"><a href="#abd554715ec521ecf2413923c8429c4b5">◆ </a></span>remove_prefix()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::remove_prefix </td> <td>(</td> <td class="paramtype">int32_t </td> <td class="paramname"><em>n</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Removes the first n string units. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">n</td><td>prefix length, must be non-negative and <=<a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc" title="Returns the string length. ">length()</a> </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000814">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00267">267</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="ac53d760ea1e9655cff791779fee49f58"></a> <h2 class="memtitle"><span class="permalink"><a href="#ac53d760ea1e9655cff791779fee49f58">◆ </a></span>remove_suffix()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::remove_suffix </td> <td>(</td> <td class="paramtype">int32_t </td> <td class="paramname"><em>n</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Removes the last n string units. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">n</td><td>suffix length, must be non-negative and <=<a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc" title="Returns the string length. ">length()</a> </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000815">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00282">282</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="aa9fb8d13c5903207142dff23f7cf21bc"></a> <h2 class="memtitle"><span class="permalink"><a href="#aa9fb8d13c5903207142dff23f7cf21bc">◆ </a></span>set() <span class="overload">[1/4]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::set </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"><em>xdata</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Reset the stringpiece to refer to new data. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">xdata</td><td>pointer the new string data. Need not be nul terminated. </td></tr> <tr><td class="paramname">len</td><td>the length of the new data </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000810">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00232">232</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a13add7445082965d9eeaa1ebc5d9bc7a"></a> <h2 class="memtitle"><span class="permalink"><a href="#a13add7445082965d9eeaa1ebc5d9bc7a">◆ </a></span>set() <span class="overload">[2/4]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::set </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Reset the stringpiece to refer to new data. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>a pointer to a NUL-terminated string. </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000811">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl> </div> </div> <a id="a56c189120008fdae16fdfaa2c05d39ca"></a> <h2 class="memtitle"><span class="permalink"><a href="#a56c189120008fdae16fdfaa2c05d39ca">◆ </a></span>set() <span class="overload">[3/4]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::set </td> <td>(</td> <td class="paramtype">const char8_t * </td> <td class="paramname"><em>xdata</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Resets the stringpiece to refer to new data. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">xdata</td><td>pointer the new string data. Need not be NUL-terminated. </td></tr> <tr><td class="paramname">len</td><td>the length of the new data </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000812">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00248">248</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="aa3267fbc0ae7eff7360d1578f4fe9d0e"></a> <h2 class="memtitle"><span class="permalink"><a href="#aa3267fbc0ae7eff7360d1578f4fe9d0e">◆ </a></span>set() <span class="overload">[4/4]</span></h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void icu::StringPiece::set </td> <td>(</td> <td class="paramtype">const char8_t * </td> <td class="paramname"><em>str</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Resets the stringpiece to refer to new data. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">str</td><td>a pointer to a NUL-terminated string. </td></tr> </table> </dd> </dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000813">Stable:</a></b></dt><dd>ICU 67 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00257">257</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="ab7704c0a02079a1d96b13d3011a888e2"></a> <h2 class="memtitle"><span class="permalink"><a href="#ab7704c0a02079a1d96b13d3011a888e2">◆ </a></span>size()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">int32_t icu::StringPiece::size </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the string length. </p> <p>Same as <a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc" title="Returns the string length. ">length()</a>. </p><dl class="section return"><dt>Returns</dt><dd>the string length </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000806">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00206">206</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <a id="a03b1fd6a19bb0e8cbde5ce25064c3c33"></a> <h2 class="memtitle"><span class="permalink"><a href="#a03b1fd6a19bb0e8cbde5ce25064c3c33">◆ </a></span>substr()</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> icu::StringPiece::substr </td> <td>(</td> <td class="paramtype">int32_t </td> <td class="paramname"><em>pos</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int32_t </td> <td class="paramname"><em>len</em> = <code><a class="el" href="classicu_1_1StringPiece.html#a495638fbbd40637881ee185bd3413720">npos</a></code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns a substring of this <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">pos</td><td>start position; must be non-negative and <= <a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc" title="Returns the string length. ">length()</a>. </td></tr> <tr><td class="paramname">len</td><td>length of the substring; must be non-negative and will be pinned to at most <a class="el" href="classicu_1_1StringPiece.html#ad6f5f2eacf062a300706a8c5f7da85cc" title="Returns the string length. ">length()</a> - pos. </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>the substring <a class="el" href="classicu_1_1StringPiece.html" title="A string-like object that points to a sized piece of memory. ">StringPiece</a> </dd></dl> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000819">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00324">324</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <h2 class="groupheader">Field Documentation</h2> <a id="a495638fbbd40637881ee185bd3413720"></a> <h2 class="memtitle"><span class="permalink"><a href="#a495638fbbd40637881ee185bd3413720">◆ </a></span>npos</h2> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">const int32_t icu::StringPiece::npos</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">static</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Maximum integer, used as a default value for substring methods. </p> <dl class="stable"><dt><b><a class="el" href="stable.html#_stable000818">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl> <p class="definition">Definition at line <a class="el" href="stringpiece_8h_source.html#l00314">314</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p> </div> </div> <hr/>The documentation for this class was generated from the following file:<ul> <li>common/unicode/<a class="el" href="stringpiece_8h_source.html">stringpiece.h</a></li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>

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