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<title>fgets function</title>
<head>
<script language="JavaScript">
</script>
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<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>
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<address>Martin Leslie
</address><p>
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