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git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
60 lines
2.1 KiB
HTML
60 lines
2.1 KiB
HTML
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<TITLE>cc65 function reference: Alphabetical function reference: calloc</TITLE>
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<H2><A NAME="calloc"></A> 3.28 <A HREF="funcref.html#toc3.28">calloc</A></H2>
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<P>
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<BLOCKQUOTE>
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<DL>
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<DT><B>Function</B><DD><P>Allocate and clear memory.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-38.html#stdlib.h">stdlib.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>void* __fastcall__ calloc (size_t n, size_t size);</CODE></P>
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<DT><B>Description</B><DD><P><CODE>calloc</CODE> allocates memory for an array of <CODE>n</CODE> elements
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of size <CODE>size</CODE>, clears the whole block with binary zeroes and returns a
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pointer to it. On error (not enough memory available), <CODE>calloc</CODE> returns
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<CODE>NULL</CODE>.</P>
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<DT><B>Limits</B><DD><P>
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<UL>
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<LI>Clearing the memory may not have the expected effect on all platforms:
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pointers in the block may not be <CODE>NULL</CODE> and floating point variables may
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not be zero (0.0). In other words: The "clearing" effect of this function
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should be used with care for portable programs.</LI>
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<LI>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.</LI>
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</UL>
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</P>
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<DT><B>Availability</B><DD><P>ISO 9899</P>
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<DT><B>See also</B><DD><P>
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<A HREF="funcref-46.html#_heapadd">_heapadd</A>,
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<A HREF="funcref-47.html#_heapblocksize">_heapblocksize</A>,
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<A HREF="funcref-48.html#_heapmaxavail">_heapmaxavail</A>,
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<A HREF="funcref-49.html#_heapmemavail">_heapmemavail</A>,
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<A HREF="funcref-107.html#free">free</A>,
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<A HREF="funcref-139.html#malloc">malloc</A>,
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<A HREF="funcref-169.html#realloc">realloc</A></P>
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<DT><B>Example</B><DD><P>None.</P>
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