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authorTobias Klauser <tklauser@distanz.ch>2008-01-27 11:37:44 +0100
committerTobias Klauser <tklauser@xenon.tklauser.home>2008-01-27 11:37:44 +0100
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+<title>fgets function</title>
+<head>
+<script language="JavaScript">
+</script>
+</head>
+<body bgcolor="#ffffcc">
+<hr>
+<center><h1>fgets function </h1></center>
+<hr>
+<p>
+<b>fgets</b> is used to read a line of data from an external source.<p>
+<hr>
+
+<pre>
+Library: stdio.h
+
+Prototype: char *fgets(char *s, int n, FILE *stream);
+
+Syntax: char Data[80];
+ char *ReturnCode;
+ FILE *FilePointer;
+
+ ReturnCode=fgets(Data, 80, FilePointer);
+
+ ReturnCode == NULL when an error occours. The EOF is
+ considered to be an ERROR!
+</pre>
+
+<hr>
+<h2>Notes</h2>
+<ul>
+<li>fgets should be used in preference to <a href=gets.html>gets</a>
+as it checks that the incoming data does not exceed the buffer size.
+<p>
+
+<li>If fgets is reading STDIN, the
+<a href=escape.html>NEWLINE</a> character is placed into
+the buffer. <a href=gets.html>gets</a> removes the NEWLINE.
+</ul>
+<hr>
+
+<img src=../../GRAPHICS/computer.gif>
+<a href=../EXAMPLES/fgets.c> example</a> program number one.<p>
+
+<img src=../../GRAPHICS/computer.gif>
+<a href=../EXAMPLES/continue.c> example</a> program number two.<p>
+
+<img src=../../GRAPHICS/computer.gif>
+<a href=../EXAMPLES/gets.c> program</a> comparing the action of gets and fgets when reading STDIN.<p>
+
+<hr>
+<h2>See Also:</h2>
+<ul>
+<li><a href=gets.html>gets</a> Read STDIN (keyboard by default).
+<li><a href=fgetc.html>fgetc</a> Get a character from a file.
+<li><a href=fputc.html>fputc</a> Put a character into a file.
+<li><a href=fprintf.html>fprintf</a> Put a formatted line into a file.
+<li><a href=fopen.html>fopen</a> Open a file.
+<li><a href=fclose.html>fclose</a> Close a file.
+<li><a href=popen.html>popen</a> Open a pipe.
+<li><a href=pclose.html>pclose</a> Close a pipe.
+</ul>
+
+
+<p>
+
+<hr>
+<p>
+<center>
+<table border=2 width="80%" bgcolor="ivory">
+<tr align=center>
+<td width="25%">
+<a href="../cref.html"> Top</a>
+</td><td width="25%">
+<a href="../master_index.html"> Master Index</a>
+</td><td width="25%">
+<a href="../SYNTAX/keywords.html"> Keywords</a>
+</td><td width="25%">
+<a href="funcref.htm"> Functions</a>
+</td>
+</tr>
+</table>
+</center>
+<p>
+<hr>
+<address>Martin Leslie
+</address><p>
+</body>
+</html>
+