Changes between Version 15 and Version 16 of CodingGuidelines

Timestamp:

Mar 29, 2012, 11:00:18 AM (13 years ago)

Author:

FrederikHeber

Comment:

added section on not use #define for const

CodingGuidelines

@@ -258 +258 @@
 }}}
 This is more efficient that setting the value in the constructor's body because the constructor of ''test'' gets called with the correct value right away instead of default constructor and then assignment operator.
+
+=== Don't use #define for const values === #code-good-bad-const-defines
+
+Creating constant variables as
+{{{
+#define three 3.
+}}}
+is evil because:
+ * in the debugger you only see ''3.'' not ''three''. Hence, you have significantly less information and a harder time to understand the code.
+ * very strange errors may occur of a define is used as an argument in another define.
+
+Instead use:
+ * '''Enum-Hack:''' enum {Num = 2}; for integers, used very frequently in the context of Template Meta Programming
+ * '''Const variables''' simply declare a (even global) const variable to contain the value.
+