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95 lines
3.7 KiB
HTML
95 lines
3.7 KiB
HTML
4 years ago
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<title>setlinebuf (The Red Hat newlib C Library)</title>
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<meta name="description" content="setlinebuf (The Red Hat newlib C Library)">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Stdio.html#Stdio" rel="up" title="Stdio">
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<link href="setvbuf.html#setvbuf" rel="next" title="setvbuf">
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</head>
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<body lang="en">
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<a name="setlinebuf"></a>
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<div class="header">
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<p>
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Next: <a href="setvbuf.html#setvbuf" accesskey="n" rel="next">setvbuf</a>, Previous: <a href="setbuffer.html#setbuffer" accesskey="p" rel="prev">setbuffer</a>, Up: <a href="Stdio.html#Stdio" accesskey="u" rel="up">Stdio</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="setlinebuf_002d_002d_002dspecify-line-buffering-for-a-file-or-stream"></a>
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<h3 class="section">4.57 <code>setlinebuf</code>—specify line buffering for a file or stream</h3>
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<a name="index-setlinebuf"></a>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <stdio.h>
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void setlinebuf(FILE *<var>fp</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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<code>setlinebuf</code> specifies that output to the file or stream identified by
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<var>fp</var> should be line buffered. This causes the file or stream to pass
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on output to the host system at every newline, as well as when the
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buffer is full, or when an input operation intervenes.
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</p>
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<br>
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<p><strong>Warnings</strong><br>
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You may only use <code>setlinebuf</code> before performing any file operation
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other than opening the file.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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<code>setlinebuf</code> returns as per setvbuf.
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</p>
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<br>
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<p><strong>Portability</strong><br>
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This function comes from BSD not ANSI or POSIX.
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</p>
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<p>Supporting OS subroutines required: <code>close</code>, <code>fstat</code>, <code>isatty</code>,
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<code>lseek</code>, <code>read</code>, <code>sbrk</code>, <code>write</code>.
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</p>
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<br>
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</body>
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</html>
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