Changes between Version 13 and Version 14 of CodingGuidelines

Timestamp:

Mar 29, 2012, 10:46:25 AM (13 years ago)

Author:

FrederikHeber

Comment:

added section on constructor's initialization list

CodingGuidelines

@@ -163 +163 @@
 
 This way we can control the verbosity of the code easily and we do not end up with many commented-out wasteland alike ''... //std::cout << "Variable bla is " << ...''.
+
+=== Use constructors initialization list properly === #code-good-bad-constructor-initialization
+
+Constructors may be given an initialization list, e.g.
+{{{
+class SomeClass {
+ ...
+ double test;
+ ...
+};
+
+SomeClass::SomeClass() :
+  test(0.)
+{}
+
+SomeClass::SomeClass(const double t) :
+  test(t)
+{}
+}}}
+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.