Programming Technical Interview Questions
This site features a collection of common technical interview questions gathered by a group of programmers who have been through, and given, lots of technical interviews. There is an emphasis on C++ and game programming technical interviews, but most of the questions are relevant to any technical interview.
Namespaces
C/C++ Interview Questions

What is a ‘namespace’ and what is it used for? What is the purpose of the ‘using’ declaration?


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Namespace is used to avoid function name clashes between different libraries, it declares all function/variables within a scope which remains hidden otherwise until explictly mentioned which is done by the keywords ‘using’.

eg.

namespace myfuncs {
void func1();
int func2();

int fg;
}

..
..
..

in some file when you write …

…
using namespace myfuncs;

…

By Mayank on 08.28.07 4:03 am | Permalink

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