397 lines
7.4 KiB
HTML
397 lines
7.4 KiB
HTML
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><TD ALIGN="LEFT" VALIGN="BASELINE" WIDTH="100%" CLASS="name"
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><SPAN CLASS="idx" DATA-KIND="idxref" DATA-TERM="bit, sbit"
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><B
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>bit, sbit</B
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></TD
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><TD ALIGN="RIGHT" VALIGN="BASELINE" WIDTH="0" NOWRAP="NOWRAP" CLASS="ftype"
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><I
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>Accessor</I
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></TR
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><DL
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><DT
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><B
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>Syntax</B
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><DD
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><TABLE CELLSPACING="0" CELLPADDING="0" RULES="GROUPS" STYLE="margin: 1ex 0"
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><TBODY
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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><B
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>bit</B
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> <SPAN CLASS="cmssi"
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>bit-array</SPAN
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> <SPAN CLASS="cmtt"
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>&rest</SPAN
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> <SPAN CLASS="cmssi"
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>subscripts</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> <SPAN CLASS="cmssi"
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>bit</SPAN
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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> <B
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>sbit</B
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> <SPAN CLASS="cmssi"
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>bit-array</SPAN
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> <SPAN CLASS="cmtt"
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>&rest</SPAN
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> <SPAN CLASS="cmssi"
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>subscripts</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> <SPAN CLASS="cmssi"
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>bit</SPAN
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></TD
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></TR
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></TBODY
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></TABLE
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><TABLE CELLSPACING="0" CELLPADDING="0" RULES="GROUPS" STYLE="margin: 1ex 0"
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><TBODY
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";"
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><B
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>(setf (bit</B
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> <SPAN CLASS="cmssi"
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>bit-array</SPAN
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> <SPAN CLASS="cmtt"
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>&rest</SPAN
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> <SPAN CLASS="cmssi"
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>subscripts</SPAN
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><B
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>)</B
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> <SPAN CLASS="cmssi"
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>new-bit</SPAN
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><B
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>)</B
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";"
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> <B
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>(setf (sbit</B
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> <SPAN CLASS="cmssi"
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>bit-array</SPAN
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> <SPAN CLASS="cmtt"
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>&rest</SPAN
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> <SPAN CLASS="cmssi"
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>subscripts</SPAN
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><B
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>)</B
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> <SPAN CLASS="cmssi"
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>new-bit</SPAN
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><B
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>)</B
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></TD
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></TR
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></TBODY
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></TABLE
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></DD
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><DT
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><B
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>Arguments and Values</B
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></DT
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><DD
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><P CLASS="j"
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><VAR CLASS="param"
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>bit-array</VAR
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> — for <A HREF="f_bit.html" CLASS="funref"
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><B
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>bit</B
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></A
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>, a <A HREF="26_1_Glossary.html#bit_array"
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><EM CLASS="term"
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>bit array</EM
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></A
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>; for <A HREF="f_bit.html" CLASS="funref"
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><B
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>sbit</B
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></A
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>, a <A HREF="26_1_Glossary.html#simple_bit_array"
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><EM CLASS="term"
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>simple bit array</EM
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></A
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>. </P
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><P CLASS="j"
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><VAR CLASS="param"
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>subscripts</VAR
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> — a <A HREF="26_1_Glossary.html#list"
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><EM CLASS="term"
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>list</EM
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></A
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> of <A HREF="26_1_Glossary.html#valid_array_index"
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><EM CLASS="term"
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>valid array indices</EM
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></A
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> for the <VAR CLASS="param"
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>bit-array</VAR
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>. </P
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><P CLASS="j"
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><VAR CLASS="param"
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>bit</VAR
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> — a <A HREF="26_1_Glossary.html#bit"
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><EM CLASS="term"
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>bit</EM
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></A
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>.</P
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></DD
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><DT
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><B
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>Description</B
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></DT
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><DD
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><P CLASS="j"
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><A HREF="f_bit.html" CLASS="funref"
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><B
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>bit</B
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></A
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> and <A HREF="f_bit.html" CLASS="funref"
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><B
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>sbit</B
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></A
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> <A HREF="26_1_Glossary.html#access"
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><EM CLASS="term"
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>access</EM
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></A
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> the <VAR CLASS="param"
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>bit-array</VAR
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> <A HREF="26_1_Glossary.html#element"
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><EM CLASS="term"
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>element</EM
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></A
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> specified by <VAR CLASS="param"
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>subscripts</VAR
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>. </P
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><P CLASS="j"
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>These <A HREF="26_1_Glossary.html#function"
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><EM CLASS="term"
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>functions</EM
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></A
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> ignore the <A HREF="26_1_Glossary.html#fill_pointer"
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><EM CLASS="term"
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>fill pointer</EM
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></A
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> when <A HREF="26_1_Glossary.html#access"
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><EM CLASS="term"
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>accessing</EM
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></A
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> <A HREF="26_1_Glossary.html#element"
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><EM CLASS="term"
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>elements</EM
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></A
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>.</P
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></DD
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><DT
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><B
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>Examples</B
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></DT
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><DD
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><PRE CLASS="screen"
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>(bit (setq ba (make-array 8
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:element-type 'bit
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:initial-element 1))
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3) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 1
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(setf (bit ba 3) 0) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 0
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(bit ba 3) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 0
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(sbit ba 5) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 1
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(setf (sbit ba 5) 1) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 1
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(sbit ba 5) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 1</PRE
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></DD
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><DT
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><B
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>See Also</B
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></DT
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><DD
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><P CLASS="j"
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><A HREF="f_aref.html" CLASS="funref"
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><B
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>aref</B
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></A
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>, <A HREF="3_2_Compilation.html#sec_3_2_1" CLASS="secref"
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><SPAN CLASS="cmr"
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>Section</SPAN
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> <SPAN CLASS="cmr"
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>3.2.1</SPAN
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> <SPAN CLASS="cmr"
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>(Compiler</SPAN
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> <SPAN CLASS="cmr"
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>Terminology)</SPAN
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></A
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></P
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></DD
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><DT
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><B
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>Notes</B
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></DT
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><DD
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><P CLASS="j"
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><A HREF="f_bit.html" CLASS="funref"
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><B
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>bit</B
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></A
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> and <A HREF="f_bit.html" CLASS="funref"
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><B
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>sbit</B
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></A
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> are like <A HREF="f_aref.html" CLASS="funref"
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><B
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>aref</B
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></A
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> except that they require <VAR CLASS="param"
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>arrays</VAR
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> to be a <A HREF="26_1_Glossary.html#bit_array"
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><EM CLASS="term"
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>bit array</EM
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></A
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> and a <A HREF="26_1_Glossary.html#simple_bit_array"
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><EM CLASS="term"
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>simple bit array</EM
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></A
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>, respectively. </P
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><P CLASS="j"
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><A HREF="f_bit.html" CLASS="funref"
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><B
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>bit</B
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></A
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> and <A HREF="f_bit.html" CLASS="funref"
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><B
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>sbit</B
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></A
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>, unlike <A HREF="f_char.html" CLASS="funref"
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><B
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>char</B
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></A
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> and <A HREF="f_char.html" CLASS="funref"
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><B
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>schar</B
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></A
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>, allow the first argument to be an <A HREF="26_1_Glossary.html#array"
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><EM CLASS="term"
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>array</EM
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></A
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> of any <A HREF="26_1_Glossary.html#rank"
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><EM CLASS="term"
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>rank</EM
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></A
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>.</P
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></DD
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></DL
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></DIV
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></DIV
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><DIV CLASS="footer"
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><DIV CLASS="btmnav"
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><A HREF="f_vectorp.html" CLASS="prev"
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>←</A
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><A HREF="f_bit-and.html" CLASS="next"
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>→</A
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></DIV
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><DIV CLASS="trail"
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>Conversion to HTML copyright 2023 by Gilbert Baumann</DIV
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></DIV
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></DIV
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><SCRIPT
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>domReady();</SCRIPT
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></BODY
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></HTML
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>
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