63 lines
2.8 KiB
HTML
63 lines
2.8 KiB
HTML
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<html lang="en">
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<head>
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<title>Chars - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Characters.html#Characters" title="Characters">
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<link rel="prev" href="Strings.html#Strings" title="Strings">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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-->
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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="Chars"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Strings.html#Strings">Strings</a>,
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Up: <a rel="up" accesskey="u" href="Characters.html#Characters">Characters</a>
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<hr>
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</div>
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<h5 class="subsubsection">3.6.1.2 Characters</h5>
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<p><a name="index-single-character-constant-166"></a><a name="index-character_002c-single-167"></a><a name="index-constant_002c-single-character-168"></a>A single character may be written as a single quote immediately followed by
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that character. Some backslash escapes apply to characters, <code>\b</code>,
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<code>\f</code>, <code>\n</code>, <code>\r</code>, <code>\t</code>, and <code>\"</code> with the same meaning
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as for strings, plus <code>\'</code> for a single quote. So if you want to write the
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character backslash, you must write <kbd>'\\</kbd> where the first <code>\</code> escapes
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the second <code>\</code>. As you can see, the quote is an acute accent, not a grave
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accent. A newline
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immediately following an acute accent is taken as a literal character
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and does not count as the end of a statement. The value of a character
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constant in a numeric expression is the machine's byte-wide code for
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that character. <samp><span class="command">as</span></samp> assumes your character code is ASCII:
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<kbd>'A</kbd> means 65, <kbd>'B</kbd> means 66, and so on.
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</body></html>
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