📄 node86.htm

📁 Tutorila for CPP, very good tutorial for CPP
💻 HTM
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//FR">
<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997)
 by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds
* revised and updated by:  Marcus Hennecke, Ross Moore, Herb Swan
* with significant contributions from:
  Jens Lippman, Marek Rouchal, Martin Wilck and others -->
<HTML><BLOCKQUOTE><img src="logo.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/logo.gif" ALIGN=right></A> 
<HEAD>
<TITLE>Passage de structures en param鑤re</TITLE>
<META NAME="description" CONTENT="Passage de structures en param鑤re">
<META NAME="keywords" CONTENT="Introduction_ANSI_C">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1">
<LINK REL="STYLESHEET" HREF="Introduction_ANSI_C.css" tppabs="http://www.linux-kheops.com/doc/ansi-c/Introduction_ANSI_C.css">
<LINK REL="next" HREF="node87.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node87.htm">
<LINK REL="previous" HREF="node85.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node85.htm">
<LINK REL="up" HREF="node77.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node77.htm">
<LINK REL="next" HREF="node87.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node87.htm">
</HEAD>
<BODY BACKGROUND="marge.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/marge.gif" TEXT=#000000 LINK=#FF0000 VLINK=#1809BB >
<!--Navigation Panel-->
<A NAME="tex2html2473"
 HREF="node87.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node87.htm">
<IMG WIDTH="77" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
 SRC="next_motif.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/next_motif.gif"></A> 
<A NAME="tex2html2469"
 HREF="node77.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node77.htm">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
 SRC="up_motif.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/up_motif.gif"></A> 
<A NAME="tex2html2463"
 HREF="node85.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node85.htm">
<IMG WIDTH="96" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
 SRC="previous_motif.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/previous_motif.gif"></A> 
<A NAME="tex2html2471"
 HREF="node1.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node1.htm">
<IMG WIDTH="96" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents"
 SRC="contents_motif.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/contents_motif.gif"></A> 
<A NAME="tex2html2472"
 HREF="node174.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node174.htm">
<IMG WIDTH="59" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index"
 SRC="index_motif.gif" tppabs="http://www.linux-kheops.com/doc/ansi-c/icons.gif/index_motif.gif"></A> 
<BR>
<B> Suivant:</B> <A NAME="tex2html2474"
 HREF="node87.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node87.htm">D閠ermination de la taille</A>
<B> D閎ut:</B> <A NAME="tex2html2470"
 HREF="node77.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node77.htm">Structures, unions et 閚um閞ations</A>
<B> Pr閏閐ent:</B> <A NAME="tex2html2464"
 HREF="node85.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node85.htm">Acc鑣 aux 閘閙ents d'une</A><HR>
<BR>
<BR>
<!--End of Navigation Panel-->
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><strong>Paragraphes</strong></A>
<UL>
<LI><A NAME="tex2html2475"
 HREF="node86.htm#SECTION00891000000000000000" tppabs="http://www.linux-kheops.com/doc/ansi-c/node86.htm#SECTION00891000000000000000">
Attention</A>
</UL>
<!--End of Table of Child-Links-->
<HR>
<H1><font COLOR=#1809BB><A NAME="SECTION00890000000000000000">
Passage de structures en param鑤re</A>
</font></H1>
<A NAME="4257">&#160;</A>
<P>
Supposons que l'on ait fait la d閏laration suivante&nbsp;:
<P><PRE>
struct date
   {
   int jour,mois,annee;
   };
</PRE>
une fonction de comparaison de deux dates pourra s'閏rire&nbsp;:
<PRE>
enum {AVANT, EGAL, APRES};

int cmp_date( struct date d1, struct date d2)
{
if (d1.annee &gt; d2.annee)
   return(APRES);
if (d1.annee &lt; d2.annee)
   return(AVANT);
...   /*   comparaison portant sur mois et jour   */
}
</PRE>
et une utilisation de cette fonction pourra 阾re&nbsp;:
<PRE>
struct date d1,d2;

if (cmp_date(d1,d2) == AVANT)
   ...
</PRE>
<P><H2><font COLOR=#1809BB><A NAME="SECTION00891000000000000000">
Attention</A>
</font></H2>
En langage C <font size=-1><small>K</small></font>&amp;<font size=-1><small>R</small></font>, il n'閠ait pas possible de passer en param鑤re une
structure, mais on pouvait passer un pointeur vers une structure.
<P>
<BR><HR>
<ADDRESS>
<I></I>
<BR><I>30/9/1997</I>
</ADDRESS>
</BODY>
</BLOCKQUOTE></HTML>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -