73 lines
2.4 KiB
HTML
73 lines
2.4 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN">
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<!Originally converted to HTML using LaTeX2HTML 95 (Thu Jan 19 1995) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
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<HEAD>
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<TITLE> documentation (FUNCTION)</TITLE>
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</HEAD>
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<BODY>
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<meta name="description" value=" documentation (FUNCTION)">
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<meta name="keywords" value="lp">
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<meta name="resource-type" value="document">
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<meta name="distribution" value="global">
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<P>
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<BR> <HR>
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<A HREF="node92.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A>
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<A HREF="node72.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A>
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<A HREF="node90.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <BR>
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<A HREF="lp.html"><B>Contents</B></A>
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<B> Next:</B>
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<A HREF="node92.html"> eql (PREDICATE)</A>
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<B>Up:</B>
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<A HREF="node72.html"> Appendix: Selected Lisp </A>
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<B> Previous:</B>
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<A HREF="node90.html"> do (SPECIAL FORM)</A>
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<BR> <HR> <P>
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<H1> documentation (FUNCTION)</H1>
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<P>
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<b> Format:</b>
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<tt> (documentation <func> <type> )</tt>
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<P>
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<b> Required arguments:</b>
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2
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<P>
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<tt> <func> </tt> must evaluate to the name of a function
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<tt> <type> </tt> must be function, variable, type, structure, or setf (see below)
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<P>
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This function is useful from the command line for a quick reminder of the format and usage of certain Lisp primitives. Both arguments are usually quoted symbols. See examples below.
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<P>
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<b> Examples:</b>
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<P>
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<BLOCKQUOTE>
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<PRE>> (documentation 'documentation 'function)
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"
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Args: (symbol doc-type)
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Returns the doc-string of DOC-TYPE for SYMBOL; NIL if none exists.
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Possible doc-types are:
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FUNCTION (special forms, macros, and functions)
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VARIABLE (dynamic variables, including constants)
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TYPE (types defined by DEFTYPE)
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STRUCTURE (structures defined by DEFSTRUCT)
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SETF (SETF methods defined by DEFSETF, DEFINE-SETF-METHOD, and
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DEFINE-MODIFY-MACRO)
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All built-in special forms, macros, functions, and variables have their
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doc-strings."
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> (documentation 'cdr 'function)
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"
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Args: (list)
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Returns the cdr of LIST. Returns NIL if LIST is NIL."
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> (documentation 'pi 'variable)
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"
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The floating-point number that is appropriately equal to the ratio of the
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circumference of the circle to the diameter."
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</PRE>
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</BLOCKQUOTE>
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<P>
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<BR> <HR>
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<P>
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<ADDRESS>
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<I>© Colin Allen & Maneesh Dhagat <BR>
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March 2007 </I>
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</ADDRESS>
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</BODY>
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