File: shared.html

package info (click to toggle)
drscheme 1%3A352-6
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 71,608 kB
  • ctags: 55,284
  • sloc: ansic: 278,966; cpp: 63,318; sh: 32,265; lisp: 14,530; asm: 7,327; makefile: 4,846; pascal: 4,363; perl: 2,920; java: 1,632; yacc: 755; lex: 258; sed: 93; xml: 12
file content (1 line) | stat: -rw-r--r-- 876 bytes parent folder | download | duplicates (2) 
1
 
<html><head><title>shared</title><h1>shared</h1></head><body><code class="scheme">(<code class="scheme"><span class="keyword">shared</span></code> ((<b>NAME</b> <b>EXPRESSION</b>) ...) <b>EXPRESSION</b>)</code><br /> This form is like <code class="scheme"><span class="keyword">letrec</span></code>, but when a binding <nonterm>EXPRESSION</nonterm> is a <code class="scheme">cons</code>, <code class="scheme">list</code>, <code class="scheme">vector</code>, quasiquoted expression, or <code class="scheme">make-STRUCTNAME</code>, the expression can refer to any name bound by the <code class="scheme"><span class="keyword">shared</span></code> form, not just the names bound earlier. Thus, <code class="scheme"><span class="keyword">shared</span></code> can be used to create cyclic data structures. <br /><p><a href="index.htm">Advanced Student Language</a></p></body></html>