313 lines
6.1 KiB
HTML
313 lines
6.1 KiB
HTML
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<!DOCTYPE HTML>
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<HTML LANG="en-us"
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>lambda | Common Lisp Nova Spec</TITLE
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><SPAN CLASS="breadcrumb-item"
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><A HREF="index.html"
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>Common Lisp Nova Spec</A
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></SPAN
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> <SPAN CLASS="breadcrumb-item"
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>→ <A HREF="3_Evaluation_and_Compilation.html"
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>3. Evaluation and Compilation</A
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></SPAN
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> <SPAN CLASS="breadcrumb-item"
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>→ <A HREF="3_8_Evaluation_and_Compilation_Dictionary.html"
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>3.8 Evaluation and Compilation Dictionary</A
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></SPAN
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> <SPAN CLASS="breadcrumb-item"
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>→ <A HREF="f_lambda.html"
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>lambda</A
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><DIV CLASS="apropos"
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><DIV CLASS="apropos-io"
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><A HREF="m_lambda.html" CLASS="prev"
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>←</A
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>Apropos </SPAN
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><INPUT ID="apropos" AUTOFOCUS="AUTOFOCUS" PLACEHOLDER="Type here to search" ONINPUT="aproposInput(this);" ONKEYUP="aproposKeyup(event);" ONCHANGE="aproposChange(this);" ONFOCUS="aproposFocus(this);" ONFOCUSOUT="aproposFocusout(this);"
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><A HREF="f_compile.html" CLASS="next"
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>→</A
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></DIV
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></DIV
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><DIV CLASS="matter"
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><DIV CLASS="com"
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><DIV CLASS="begincom"
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><HR
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><TABLE WIDTH="100%" CELLSPACING="0" CELLPADDING="0"
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><TR
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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="lambda"
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></SPAN
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><B
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>lambda</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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>Macro</I
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></TD
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></TR
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></TABLE
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><HR
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></DIV
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><UL CLASS="subtoc"
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></UL
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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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></DT
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><DD
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><P CLASS="j"
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><B
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>lambda</B
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> <SPAN CLASS="cmssi"
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>lambda-list</SPAN
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> ⟦ {<VAR CLASS="param"
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>declaration</VAR
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>}* | <VAR CLASS="param"
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>documentation</VAR
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>  ⟧ {<VAR CLASS="param"
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>form</VAR
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>}* <SPAN CLASS="arrow"
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>→</SPAN
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> <VAR CLASS="param"
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>function</VAR
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></P
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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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>lambda-list</VAR
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> — an <A HREF="26_1_Glossary.html#ordinary_lambda_list"
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><EM CLASS="term"
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>ordinary lambda list</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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>declaration</VAR
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> — a <A HREF="m_declare.html" CLASS="misc"
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><B
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>declare</B
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></A
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> <A HREF="26_1_Glossary.html#expression"
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><EM CLASS="term"
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>expression</EM
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></A
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>; not evaluated. </P
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><P CLASS="j"
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><VAR CLASS="param"
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>documentation</VAR
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> — a <A HREF="26_1_Glossary.html#string"
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><EM CLASS="term"
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>string</EM
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></A
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>; not evaluated. </P
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><P CLASS="j"
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><VAR CLASS="param"
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>form</VAR
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> — a <A HREF="26_1_Glossary.html#form"
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><EM CLASS="term"
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>form</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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>function</VAR
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> — a <A HREF="26_1_Glossary.html#function"
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><EM CLASS="term"
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>function</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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>Provides a shorthand notation for a <A HREF="f_function.html" CLASS="specref"
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><B
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>function</B
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></A
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> <A HREF="26_1_Glossary.html#special_form"
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><EM CLASS="term"
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>special form</EM
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></A
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> involving a <A HREF="26_1_Glossary.html#lambda_expression"
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><EM CLASS="term"
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>lambda expression</EM
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></A
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> such that:</P
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><PRE CLASS="screen"
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> (lambda <VAR CLASS="param"
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>lambda-list</VAR
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> <SPAN CLASS="cmr"
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>⟦ </SPAN
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><SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>declaration</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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> <SPAN CLASS="cmsy"
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>|</SPAN
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> <VAR CLASS="param"
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>documentation</VAR
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> <SPAN CLASS="cmr"
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> ⟧</SPAN
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> <SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>form</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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>)
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<SPAN CLASS="cmsy"
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><SPAN STYLE="font-size:16px;vertical-align:-2px"
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>≡</SPAN
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></SPAN
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> (function (lambda <VAR CLASS="param"
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>lambda-list</VAR
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> <SPAN CLASS="cmr"
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>⟦ </SPAN
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><SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>declaration</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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> <SPAN CLASS="cmsy"
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>|</SPAN
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> <VAR CLASS="param"
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>documentation</VAR
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> <SPAN CLASS="cmr"
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> ⟧</SPAN
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> <SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>form</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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>))
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<SPAN CLASS="cmsy"
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><SPAN STYLE="font-size:16px;vertical-align:-2px"
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>≡</SPAN
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></SPAN
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> #'(lambda <VAR CLASS="param"
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>lambda-list</VAR
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> <SPAN CLASS="cmr"
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>⟦ </SPAN
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><SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>declaration</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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> <SPAN CLASS="cmsy"
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>|</SPAN
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> <VAR CLASS="param"
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>documentation</VAR
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> <SPAN CLASS="cmr"
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> ⟧</SPAN
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> <SPAN CLASS="cmsy"
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>{</SPAN
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><VAR CLASS="param"
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>form</VAR
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><SPAN CLASS="cmsy"
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>}</SPAN
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><SPAN CLASS="cmr"
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>*</SPAN
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>)</PRE
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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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>(funcall (lambda (x) (+ x 3)) 4) <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> 7</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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><SPAN CLASS="misc"
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><B
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>lambda</B
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></SPAN
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> (symbol)</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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>This macro could be implemented by:</P
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><PRE CLASS="screen"
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>(defmacro lambda (&whole form &rest bvl-decls-and-body)
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(declare (ignore bvl-decls-and-body))
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`#',form)</PRE
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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="m_lambda.html" CLASS="prev"
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>←</A
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><A HREF="f_compile.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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><SCRIPT
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>domReady();</SCRIPT
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>
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