Initialization (programming): Difference between revisions

Revision as of 09:58, 24 January 2012

Revision as of 10:24, 24 January 2012

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Many find it convenient to draw a distinction between the terms "declaration" and "definition", as in the commonly seen phrase "the distinction between a ''declaration'' and ''definition''...", implying that a declaration merely designates a data object (or function). In fact, according to the [[C++ standard]], a definition ''is'' a declaration. Still, the usage "declarations and definitions", although formally incorrect, is common.<ref>''C++ FAQs'', by Cline, Lomow, and Girou, Addison-Wesley, 1999, ISBN 0-201-30983-1.</ref>

C/C++ Examples:

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<source lang="c">

int i = 0;

int i2(0);

int k[4] = {0, 1};

int j[2] = {rand(), k[0]};

char tx[3]="fa";

char ty[2]="fa";

</source>

C++ only examples:

<source lang="c">

int i2(0);

int j[2] = {rand(), k[0]};

MyClass* xox = new MyClass (0, "zaza");

struct point {int x; int y;} p = {rand(), i};