diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2008-01-27 11:37:44 +0100 |
|---|---|---|
| committer | Tobias Klauser <tklauser@xenon.tklauser.home> | 2008-01-27 11:37:44 +0100 |
| commit | 7e0f021a9aec35fd8e6725e87e3313b101d26f5e (patch) | |
| tree | b1cacc4b24393f517aeb4610e9e1021f954307a8 /reference/C/SYNTAX/void.html | |
Initial import (2.0.2-6)2.0.2-6
Diffstat (limited to 'reference/C/SYNTAX/void.html')
| -rw-r--r-- | reference/C/SYNTAX/void.html | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/reference/C/SYNTAX/void.html b/reference/C/SYNTAX/void.html new file mode 100644 index 0000000..51c5b03 --- /dev/null +++ b/reference/C/SYNTAX/void.html @@ -0,0 +1,104 @@ +<title>The VOID keyword.</title> +<head> +<script language="JavaScript"> +</script> +</head> +<body bgcolor="#ffffcc"> +<hr> +<center><h1>The VOID keyword.</h1></center> +<hr> +<p> +The <b>void</b> <a href="../glossary.html#keyword">keyword</a> +allows us to create functions that either do not require any +parameters or do not return a value.<p> +The following example shows a function that does not return +a value. +<p> +<table border=2 width="100%" bgcolor=ivory> +<tr> +<td> +<pre> + + void Print_Square(int Number); + + main() + { + Print_Square(10); + exit(0); + } + + void Print_Square(int Number) + { + printf("%d squared is %d\n",Number, Number*Number); + } +</pre> +</td> +</tr> +</table> +<p> +The next example shows a function that does not require any parameters: +<p> +<table border=2 width="100%" bgcolor=ivory> +<tr> +<td> +<pre> + + #include <stdlib.h> + #include <time.h> + + int Random(void); + + main() + { + printf("A random number is %d\n", Random()); + exit(0); + } + + int Random(void) + { + srand((unsigned int)time((time_t *)NULL)); + return( rand()); + } + +</pre> +</td> +</tr> +</table> +<p> +<hr> +<h2>Example:</h2> +<img src="../../GRAPHICS/computer.gif"> +<a href="../EXAMPLES/pointer_func.c">void example</a> +<hr> +<h2>See also:</h2> +<img src="../../GRAPHICS/whiteball.gif"> +<a href="../SYNTAX/functions.html">Functions</a> +<a href="../SYNTAX/functions.html#void">Void pointers</a> +<p> + + +<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> |