📄 node59.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>Conversion des cha頽es litt閞ales</TITLE>
<META NAME="description" CONTENT="Conversion des cha頽es litt閞ales">
<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="node60.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node60.htm">
<LINK REL="previous" HREF="node58.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node58.htm">
<LINK REL="up" HREF="node53.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node53.htm">
<LINK REL="next" HREF="node60.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node60.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="tex2html1929"
 HREF="node60.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node60.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="tex2html1925"
 HREF="node53.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node53.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="tex2html1919"
 HREF="node58.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node58.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="tex2html1927"
 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="tex2html1928"
 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="tex2html1930"
 HREF="node60.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node60.htm">Retour sur printf</A>
<B> D閎ut:</B> <A NAME="tex2html1926"
 HREF="node53.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node53.htm">Relations entre tableaux et</A>
<B> Pr閏閐ent:</B> <A NAME="tex2html1920"
 HREF="node58.htm" tppabs="http://www.linux-kheops.com/doc/ansi-c/node58.htm">Interdiction de modification des</A><HR>
<BR>
<BR>
<!--End of Navigation Panel-->
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><strong>Paragraphes</strong></A>
<UL>
<LI><A NAME="tex2html1931"
 HREF="node59.htm#SECTION00660100000000000000" tppabs="http://www.linux-kheops.com/doc/ansi-c/node59.htm#SECTION00660100000000000000">
R鑗le</A>
</UL>
<!--End of Table of Child-Links-->
<HR>
<H1><font COLOR=#1809BB><A NAME="SECTION00660000000000000000">
Conversion des cha頽es litt閞ales</A>
</font></H1>
<A NAME="2580">&#160;</A>
<A NAME="2581">&#160;</A>
On rappelle que les cha頽es litt閞ales  peuvent 阾re
utilis閑s lors de la d閏laration avec initialisation d'un tableau
de caract鑢es, comme ceci&nbsp;:
<PRE>
char message[] = &quot;Bonjour!!&quot;;
</PRE>
ou 阾re utilis閑s dans une expression et 阾re pass閑s en
param鑤re de fonction par exemple, comme cela&nbsp;:
<PRE>
printf(&quot;Bonjour&quot;);
</PRE>
<P><H3><A NAME="SECTION00660100000000000000">
R鑗le</A>
</H3>
Lorsque les cha頽es litt閞ales apparaissent dans un autre contexte qu'une
d閏laration avec initialisation de tableau de caract鑢es, elles subissent une
conversion en pointeur vers <TT>char</TT>.
Si une fonction a comme param鑤re formel un tableau de caract鑢es, on pourra
lui passer en param鑤re effectif aussi bien le nom d'un tableau de caract鑢es
qu'une cha頽e litt閞ale.
Exemple&nbsp;:
<PRE>
char mess[] = &quot;Bonjour&quot;;
void f( char t[])
{
...   /*   corps de la fonction f  */
}

f(mess);       /*   un appel possible de f         */
f(&quot;Hello&quot;);    /*   un autre appel possible de f   */
</PRE>
<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 + -