68 lines
4.3 KiB
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68 lines
4.3 KiB
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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: Accessor ROW-MAJOR-AREF</TITLE>
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<A NAME="row-major-aref"><I>Accessor</I> <B>ROW-MAJOR-AREF</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>row-major-aref</B> <I>array index</I> => <I>element</I><P>
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<TT>(setf (</TT><B>row-major-aref</B> <I>array index</I><TT>) </TT><I>new-element</I><TT>)</TT><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>array</I>---an <A REL=DEFINITION HREF="26_glo_a.htm#array"><I>array</I></A>. <P>
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<I>index</I>---a <A REL=DEFINITION HREF="26_glo_v.htm#valid_array_row-major_index"><I>valid array row-major index</I></A> for the <I>array</I>. <P>
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<I>element</I>, <I>new-element</I>---an <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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Considers <A REL=DEFINITION HREF="26_glo_a.htm#array"><I>array</I></A> as a <A REL=DEFINITION HREF="26_glo_v.htm#vector"><I>vector</I></A> by viewing its <A REL=DEFINITION HREF="26_glo_e.htm#element"><I>elements</I></A> in row-major order, and returns the <A REL=DEFINITION HREF="26_glo_e.htm#element"><I>element</I></A> of that <A REL=DEFINITION HREF="26_glo_v.htm#vector"><I>vector</I></A> which is referred to by the given <I>index</I>. <P>
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<A REL=DEFINITION HREF="#row-major-aref"><B>row-major-aref</B></A> is valid for use with <A REL=DEFINITION HREF="m_setf_.htm#setf"><B>setf</B></A>. <P>
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<P><B>Examples:</B> None.
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<P>
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<P><B>Side Effects:</B> None.
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<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="f_aref.htm#aref"><B>aref</B></A>, <A REL=DEFINITION HREF="f_ar_row.htm#array-row-major-index"><B>array-row-major-index</B></A> <P>
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<P><B>Notes:</B><P>
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<P>
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<PRE>
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(row-major-aref array index) ==
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(aref (make-array (array-total-size array)
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:displaced-to array
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:element-type (array-element-type array))
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index)
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(aref array i1 i2 ...) ==
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(row-major-aref array (array-row-major-index array i1 i2))
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</PRE>
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</TT> <P>
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<P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issues</A>, <I>not part of the specification</I>, apply to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss014.htm">ARRAY-DIMENSION-LIMIT-IMPLICATIONS:ALL-FIXNUM</A><LI> <A REL=CHILD HREF="../Issues/iss009.htm">AREF-1D</A><P></UL><HR>
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