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31 lines
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<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Section 20.1.1</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="20_a.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="20_a.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="20_ab.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>
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20.1.1 Coercion of Streams to Pathnames</H2> <P>
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A <A REL=DEFINITION HREF="26_glo_s.htm#stream_associated_with_a_file"><I>stream associated with a file</I></A> is either a <A REL=DEFINITION HREF="26_glo_f.htm#file_stream"><I>file stream</I></A> or a <A REL=DEFINITION HREF="26_glo_s.htm#synonym_stream"><I>synonym stream</I></A> whose target is a <A REL=DEFINITION HREF="26_glo_s.htm#stream_associated_with_a_file"><I>stream associated with a file</I></A>. Such streams can be used as <A REL=DEFINITION HREF="26_glo_p.htm#pathname_designator"><I>pathname designators</I></A>. <P>
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Normally, when a <A REL=DEFINITION HREF="26_glo_s.htm#stream_associated_with_a_file"><I>stream associated with a file</I></A> is used as a <A REL=DEFINITION HREF="26_glo_p.htm#pathname_designator"><I>pathname designator</I></A>, it denotes the <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A> used to open the <A REL=DEFINITION HREF="26_glo_f.htm#file"><I>file</I></A>; this may be, but is not required to be, the actual name of the <A REL=DEFINITION HREF="26_glo_f.htm#file"><I>file</I></A>. <P>
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Some functions, such as <A REL=DEFINITION HREF="f_tn.htm#truename"><B>truename</B></A> and <A REL=DEFINITION HREF="f_del_fi.htm#delete-file"><B>delete-file</B></A>, coerce <A REL=DEFINITION HREF="26_glo_s.htm#stream"><I>streams</I></A> to <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathnames</I></A> in a different way that involves referring to the actual <A REL=DEFINITION HREF="26_glo_f.htm#file"><I>file</I></A> that is open, which might or might not be the file whose name was opened originally. Such special situations are always notated specifically and are not the default. <P>
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<A REL=COPYRIGHT HREF="../Front/Help.htm#Legal"><I>Copyright 1996-2005, LispWorks Ltd. All rights reserved.</I></A><P>
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