85 lines
2.7 KiB
HTML
85 lines
2.7 KiB
HTML
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<html>
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<head>
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<title>calloc</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>calloc</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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calloc - allocate and clear memory
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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 <stdlib.h></tt><br>
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<br>
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<tt>void *</tt><br>
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<tt>calloc(size_t </tt><em>number</em><tt>, size_t </tt><em>size</em><tt>);</tt>
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</p>
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<h3>Description</h3>
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<p>
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<tt>calloc</tt> allocates <em>number</em>*<em>size</em> bytes of
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memory, zeros it, and returns a pointer to it. It is equivalent to
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calling
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<A HREF=malloc.html><tt>malloc</tt></A><tt>(</tt><em>number</em>*<em>size</em></tt>)</tt>
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followed by <A HREF=bzero.html>bzero</A>.
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</p>
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<p>
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If the product <em>number</em>*<em>size</em> overflows the range of
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<tt>size_t</tt>, calloc fails.
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</p>
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<h3>Return Values</h3>
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<p>
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<tt>calloc</tt> returns a pointer to the memory allocated. If memory
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cannot be obtained, NULL is returned.
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</p>
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<h3>See Also</h3>
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<p>
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<A HREF=malloc.html>malloc</A>,
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<A HREF=realloc.html>realloc</A>,
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<A HREF=free.html>free</A>
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</p>
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</body>
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</html>
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