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<title>The return statement</title>
<head>
<script language="JavaScript">
</script>
</head>
<body bgcolor="#ffffcc">
<hr>
<center>
<h1>The return statement </h1>
</center>
<hr>
<p>
<b>return</b> will return a value from a function to its caller.
The value returned is
the result of an <a href="../CONCEPT/expressions.html">expression</a>.
<p>
<hr>
As an Example this will print <b>7</b>
<p>
<table border=2 width="100%" bgcolor=ivory>
<tr>
<td>
<pre>
int func(void);
main()
{
printf("%d \n", func());
}
int func(void)
{
return 7;
}
</pre>
</td>
</tr>
</table>
<p>
What ever follows the <b>return</b> statement will be evaluated as
an expression. So, to be consistant you could place brackets around
the return value.
<p>
<table border=2 width="50%" bgcolor=ivory>
<tr>
<td>
<pre>
return(7);
</pre>
</td>
</tr>
</table>
<p>
Or you could evaluate a formula on the statement:
<p>
<table border=2 width="50%" bgcolor=ivory>
<tr>
<td>
<pre>
return (Count-1);
</pre>
</td>
</tr>
</table>
<p>
Finally, if the function returns a <a href=void.html>void</a>
the <b>return</b> statement is not required, but maybe needed to
leave a function before the end of the function block. Here
is an example.
<p>
<table border=2 width="100%" bgcolor=ivory>
<tr>
<td>
<pre>
void CheckDate(int)
main()
{
CheckDate(40)
}
void CheckDate(int Month)
{
if (Month > 31)
{
return;
}
puts("Month is valid");
}
</pre>
</td>
</tr>
</table>
<p>
<hr>
<h2>See also:</h2>
The <a href=../FUNCTIONS/exit.html>exit </a>function.
<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="keywords.html"> Keywords</a>
</td><td width="25%">
<a href="../FUNCTIONS/funcref.htm"> Functions</a>
</td>
</tr>
</table>
</center>
<p>
<hr>
<address>Martin Leslie
</address><p>
</body>
</html>
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