63 lines
4.1 KiB
HTML
63 lines
4.1 KiB
HTML
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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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<HTML>
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<HEAD>
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<TITLE>CLHS: Special Operator MULTIPLE-VALUE-CALL</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="m_multip.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="c_data_a.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="m_mult_1.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<HR>
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<A NAME="multiple-value-call"><I>Special Operator</I> <B>MULTIPLE-VALUE-CALL</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>multiple-value-call</B> <I><I>function-form</I> <I>form</I>*</I> => <I><I>result</I><B>*</B></I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>function-form</I>---a <A REL=DEFINITION HREF="26_glo_f.htm#form"><I>form</I></A>; evaluated to produce <I>function</I>. <P>
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<I>function</I>---a <A REL=DEFINITION HREF="26_glo_f.htm#function_designator"><I>function designator</I></A> resulting from the evaluation of <I>function-form</I>. <P>
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<I>form</I>---a <A REL=DEFINITION HREF="26_glo_f.htm#form"><I>form</I></A>. <P>
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<I>results</I>---the <A REL=DEFINITION HREF="26_glo_v.htm#value"><I>values</I></A> returned by the <I>function</I>. <P>
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<P><B>Description:</B><P>
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<P>
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Applies <I>function</I> to a <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> of the <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A> collected from groups of <A REL=DEFINITION HREF="26_glo_m.htm#multiple_values"><I>multiple values</I></A>[2]. <P>
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<A REL=DEFINITION HREF="#multiple-value-call"><B>multiple-value-call</B></A> first evaluates the <I>function-form</I> to obtain <I>function</I>, and then evaluates each <I>form</I>. All the values of each <I>form</I> are gathered together (not just one value from each) and given as arguments to the <I>function</I>. <P>
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<P><B>Examples:</B><P>
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<PRE>
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(multiple-value-call #'list 1 '/ (values 2 3) '/ (values) '/ (floor 2.5))
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=> (1 / 2 3 / / 2 0.5)
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(+ (floor 5 3) (floor 19 4)) == (+ 1 4)
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=> 5
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(multiple-value-call #'+ (floor 5 3) (floor 19 4)) == (+ 1 2 4 3)
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=> 10
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</PRE>
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</TT> <P>
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<P><B>Affected By:</B> None.
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<P>
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<P><B>Exceptional Situations:</B> None.
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<P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="m_mult_1.htm#multiple-value-list"><B>multiple-value-list</B></A>, <A REL=DEFINITION HREF="m_multip.htm#multiple-value-bind"><B>multiple-value-bind</B></A> <P>
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<P><B>Notes:</B> None.
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<P>
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<HR>
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<A REL=NAVIGATOR HREF="../Front/StartPts.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Starting Points]" SRC="../Graphics/StartPts.gif" ALIGN=Bottom></A><A REL=TOC HREF="../Front/Contents.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Contents]" SRC="../Graphics/Contents.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Master.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Index]" SRC="../Graphics/Index.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Symbol.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Symbols]" SRC="../Graphics/Symbols.gif" ALIGN=Bottom></A><A REL=GLOSSARY HREF="../Body/26_a.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Glossary]" SRC="../Graphics/Glossary.gif" ALIGN=Bottom></A><A HREF="../Front/X3J13Iss.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Issues]" SRC="../Graphics/Issues.gif" ALIGN=Bottom></A><BR>
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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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