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51 lines
1.7 KiB
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51 lines
1.7 KiB
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<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20">
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<TITLE>cc65 function reference: Alphabetical function reference: open</TITLE>
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<LINK HREF="funcref-161.html" REL=next>
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<LINK HREF="funcref-159.html" REL=previous>
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<A HREF="funcref-161.html">Next</A>
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<H2><A NAME="open"></A> 3.115 <A HREF="funcref.html#toc3.115">open</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>Open and possibly create a file.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-20.html#fcntl.h">fcntl.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>int open (const char* name, int flags, ...);</CODE></P>
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<DT><B>Description</B><DD><P><CODE>open</CODE> opens a file and returns the file descriptor
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associated with it. On error, -1 is returned and an error code is stored in
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<CODE>errno</CODE>. Several flags may be passed to <CODE>open</CODE> that change the behaviour.</P>
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<DT><B>Limits</B><DD><P>
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<UL>
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<LI>POSIX specifies an additional <CODE>mode</CODE> argument that may be passed to
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open, which is used as the permission mask when a new file is created. While
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cc65 allows to pass this argument, it is ignored.</LI>
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</UL>
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</P>
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<DT><B>Availability</B><DD><P>POSIX 1003.1</P>
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<DT><B>See also</B><DD><P>
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<A HREF="funcref-81.html#close">close</A>,
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<A HREF="funcref-82.html#creat">creat</A></P>
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<DT><B>Example</B><DD><P>None.</P>
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</DL>
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</BLOCKQUOTE>
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</P>
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<A HREF="funcref.html#toc3">Contents</A>
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