devdocs/c/string%2Fmultibyte%2Fchar8_t.html


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    <h1 id="firstHeading" class="firstHeading">char8_t</h1>            <table class="t-dcl-begin"> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;uchar.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c23"> <td> <pre data-language="c">typedef unsigned char char8_t;</pre>
</td> <td class="t-dcl-nopad"> </td> <td> <span class="t-mark-rev t-since-c23">(since C23)</span> </td> </tr>  </table> <p><code>char8_t</code> is an unsigned integer type used for UTF-8 and is the same type as <code>unsigned char</code>.</p>
<h3 id="Example"> Example</h3> <div class="t-example"> <div class="c source-c"><pre data-language="c">#include &lt;uchar.h&gt;
#include &lt;stdio.h&gt;
 
int main(void)
{
    char8_t str[] = u8"zß水🍌"; // or "z\u00df\u6c34\U0001f34c"
    size_t str_sz = sizeof str; // sizeof *str == 1 by definition
    printf("%zu UTF-8 code units: [ ", str_sz);
    for (size_t n = 0; n &lt; str_sz; ++n)
        printf("%02X ", str[n]);
    printf("]\n");
}</pre></div> <p>Possible output:</p>
<div class="text source-text"><pre data-language="c">11 UTF-8 code units: [ 7A C3 9F E6 B0 B4 F0 9F 8D 8C 00 ]</pre></div> </div> <h3 id="References"> References</h3>  <ul>
<li> C23 standard (ISO/IEC 9899:2023): </li>
<ul><li> 7.30 Unicode utilities &lt;uchar.h&gt; (p: 410) </li></ul>
</ul>   <h3 id="See_also"> See also</h3> <table class="t-dsc-begin"> <tr class="t-dsc"> <td colspan="2"> <span><a href="https://en.cppreference.com/w/cpp/language/types" title="cpp/language/types">C++ documentation</a></span> for <code>Fundamental types</code> </td>
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