85 lines
2.9 KiB
HTML
85 lines
2.9 KiB
HTML
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-->
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<html>
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<head>
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<title>snprintf</title>
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<link rel="stylesheet" type="text/css" media="all" href="../man.css">
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</head>
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<body bgcolor=#ffffff>
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<h2 align=center>snprintf</h2>
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<h4 align=center>OS/161 Reference Manual</h4>
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<h3>Name</h3>
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<p>
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snprintf - print formatted text to string
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</p>
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<h3>Library</h3>
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<p>
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Standard C Library (libc, -lc)
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</p>
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<h3>Synopsis</h3>
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<p>
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<tt>#include <unistd.h></tt><br>
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<br>
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<tt>int</tt><br>
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<tt>snprintf(char *</tt><em>buf</em><tt>, size_t </tt><em>buflen</em><tt>,
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const char *</tt><em>format</em><tt>, ...);</tt><br>
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<br>
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<tt>int</tt><br>
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<tt>vsnprintf(char *</tt><em>buf</em><tt>, size_t </tt><em>buflen</em><tt>,
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const char *</tt><em>format</em><tt>, va_list);</tt><br>
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</p>
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<h3>Description</h3>
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<p>
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<tt>snprintf</tt> performs <A HREF=printf.html>printf</A>-style
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formatting on the string <em>format</em> and subsequent arguments. The
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resulting string is placed in <em>buf</em>, which is a memory area at
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least <em>buflen</em> bytes long. A null terminator is always added to
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<em>buf</em>; the space for this is presumed to be counted in
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<em>buflen</em>.
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</p>
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<p>
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<tt>vsnprintf</tt> is the same as <tt>snprintf</tt>, except that the
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subsequent arguments are presumed to have already been collected using
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the <A HREF=stdarg.html>stdarg</A> facility.
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</p>
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<h3>Return Values</h3>
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<p>
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<tt>snprintf</tt> and <tt>vsnprintf</tt> return the number of
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characters printed.
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</p>
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</body>
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</html>
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