From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 27 Jan 2008 11:37:44 +0100 Subject: Initial import (2.0.2-6) --- reference/C/SYNTAX/define_preprocessor.html | 77 +++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 reference/C/SYNTAX/define_preprocessor.html (limited to 'reference/C/SYNTAX/define_preprocessor.html') diff --git a/reference/C/SYNTAX/define_preprocessor.html b/reference/C/SYNTAX/define_preprocessor.html new file mode 100644 index 0000000..4023d2b --- /dev/null +++ b/reference/C/SYNTAX/define_preprocessor.html @@ -0,0 +1,77 @@ +define preprocessor + + + + +
+

#define preprocessor

+
+

+The #define preprocessor allows us to define symbolic names and constants. +A quick example

+

+	#define PI 3.14159
+
+This statement will translate every occurance of PI in the program to 3.14159. +Here is a more complete example:

+

+
+	#define PI 3.14159
+	main()
+	{
+   	   int r=10;
+	   float cir;
+	   cir = PI * (r*r);
+	}
+
+This feature is partically usefull for defining 'magic' numbers.

+ +

+

See Also:

+ + +
+

Examples:

+ +example program.

+ + +Conflict between enum and #define.

+ +

+ +

+ +

+

+

+ + + + +
+ Top + + Master Index + + Keywords + + Functions +
+
+

+

+
Martin Leslie +

+ + -- cgit v1.2.3-54-g00ecf