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| 22 | <title>UTF-8 String Constants (GNU C Language Manual)</title>
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| 32 | <link href="Constants.html" rel="up" title="Constants">
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| 58 | <span id="UTF_002d8-String-Constants"></span><div class="header">
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| 59 | <p>
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| 60 | Next: <a href="Unicode-Character-Codes.html" accesskey="n" rel="next">Unicode Character Codes</a>, Previous: <a href="String-Constants.html" accesskey="p" rel="prev">String Constants</a>, Up: <a href="Constants.html" accesskey="u" rel="up">Constants</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Index.html" title="Index" rel="index">Index</a>]</p>
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| 61 | </div>
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| 62 | <hr>
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| 63 | <span id="UTF_002d8-String-Constants-1"></span><h3 class="section">12.8 UTF-8 String Constants</h3>
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| 64 | <span id="index-UTF_002d8-String-Constants"></span>
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| 65 |
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| 66 | <p>Writing ‘<samp>u8</samp>’ immediately before a string constant, with no
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| 67 | intervening space, means to represent that string in UTF-8 encoding as
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| 68 | a sequence of bytes. UTF-8 represents ASCII characters with a single
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| 69 | byte, and represents non-ASCII Unicode characters (codes 128 and up)
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| 70 | as multibyte sequences. Here is an example of a UTF-8 constant:
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| 71 | </p>
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| 72 | <div class="example">
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| 73 | <pre class="example">u8"A cónstàñt"
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| 74 | </pre></div>
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| 75 |
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| 76 | <p>This constant occupies 13 bytes plus the terminating null,
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| 77 | because each of the accented letters is a two-byte sequence.
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| 78 | </p>
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| 79 | <p>Concatenating an ordinary string with a UTF-8 string conceptually
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| 80 | produces another UTF-8 string. However, if the ordinary string
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| 81 | contains character codes 128 and up, the results cannot be relied on.
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| 82 | </p>
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