Initialization (programming): Difference between revisions

Revision as of 10:57, 12 February 2012

Revision as of 15:03, 22 March 2012

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===Initializer list===

In C++, a [[constructor]] of a class/struct can have an '''initializer list''' within the definition but prior to the constructor body. It assigns initial values to the members of the class/struct object.

Example:

<source lang="c">

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};

</source>

Here, the construct "<code> : re(0), im(0)"</code> is the initializer list.

Sometimes the term "initializer list" is also used to refer to the list of expressions in the array or struct initializer.

The new C++ standard, [[C++11]], provides for a [[C++11#Initializer_lists|more powerful concept of initializer lists]], by means of a template, called <tt>std::initializer_list</tt>.

===Default initialization===